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Virginia Tech
1.
Hoyland, Victoria Wheaton.
Evaluating the use of manganese-oxidizing bacteria in surface water treatment plants.
Degree: MS, Environmental Engineering, 2013, Virginia Tech
URL: http://hdl.handle.net/10919/19226
► Soluble manganese (Mn) presents a significant treatment challenge to many water utilities, causing aesthetic and operational concerns. Surface water treatment plants using ozonation followed by…
(more)
▼ Soluble
manganese (Mn) presents a significant treatment challenge to many water utilities, causing aesthetic and operational concerns. Surface water treatment plants using ozonation followed by biofiltration are unable to apply free chlorine across the filter, a method used by many utilities for soluble Mn control. These facilities are vulnerable to periodic problems of elevated Mn in the finished water.
Manganese-oxidizing bacteria (MOB) readily oxidize Mn in groundwater treatment applications, which normally involve pH values above 7.0. However, the ability of MOB to facilitate Mn oxidation under lower pH conditions (6.2 – 6.3) often employed to optimize organics removal has not been demonstrated. Laboratory-scale biofilters were operated to evaluate the ability of MOB to accomplish soluble Mn control at a range of pH (6.3 – 7.3). The biofilters were able to oxidize Mn at a pH as low as 6.3 at greater than 98% removal. Ozonation by-product removal was also greater than 90% in all filter columns. Stress studies indicated that well-acclimated MOB can withstand variations in Mn concentration, hydraulic loading rate, and temperature typically found at surface water treatment plants, at least for relatively short (1-2 days) periods of time. Pilot studies demonstrated that there are unknown factors that affect MOB acclimation, and MOB may be present in full-scale biofilters already. MOB are difficult to identify with current biological analysis techniques and comprise small percentages of the total microbial population. MOB have demonstrated potential for use in surface water treatment plants, but further research is needed before this application is fully feasible.
Advisors/Committee Members: Knocke, William R. (committeechair), Pruden, Amy (committee member), Falkinham, Joseph O. III (committee member).
Subjects/Keywords: manganese; biofilters; manganese-oxidizing bacteria
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APA (6th Edition):
Hoyland, V. W. (2013). Evaluating the use of manganese-oxidizing bacteria in surface water treatment plants. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/19226
Chicago Manual of Style (16th Edition):
Hoyland, Victoria Wheaton. “Evaluating the use of manganese-oxidizing bacteria in surface water treatment plants.” 2013. Masters Thesis, Virginia Tech. Accessed March 07, 2021.
http://hdl.handle.net/10919/19226.
MLA Handbook (7th Edition):
Hoyland, Victoria Wheaton. “Evaluating the use of manganese-oxidizing bacteria in surface water treatment plants.” 2013. Web. 07 Mar 2021.
Vancouver:
Hoyland VW. Evaluating the use of manganese-oxidizing bacteria in surface water treatment plants. [Internet] [Masters thesis]. Virginia Tech; 2013. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/10919/19226.
Council of Science Editors:
Hoyland VW. Evaluating the use of manganese-oxidizing bacteria in surface water treatment plants. [Masters Thesis]. Virginia Tech; 2013. Available from: http://hdl.handle.net/10919/19226
2.
Desai, Ishan.
Manganese Based Oxidative Technologies For Water/Wastewater Treatment.
Degree: 2013, Texas Digital Library
URL: http://hdl.handle.net/1969;
http://hdl.handle.net/2249.1/66536
► Manganese is a commonly occurring mineral found in soil and sediments that takes part in chemical reactions in groundwater and soil systems. It plays a…
(more)
▼ Manganese is a commonly occurring mineral found in soil and sediments that takes part in chemical reactions in groundwater and soil systems. It plays a significant role in controlling the environmental fate and transport of organic and inorganics by facilitating redox reactions. The reactivity of
manganese oxides with some emerging contaminants like 4-tert octylphenol (OP) in aqueous systems is yet to be explored. Additionally,
manganese's use within treatment systems designed to remove trace organics is yet to be fully developed.
This research work explores the reactivity of
manganese oxide to degrade OP in aqueous systems. The rate equation has been determined by conducting experiments at various conditions of oxide and organic loading as well as different pH's. The reaction order was found to be ??? 1.1 for both oxide as well as the organic. The reactivity was much higher under acidic conditions. The presence of metals and humic acids greatly reduced the reactivity. The primary reaction by-product observed in the system was 4-(2,4,4-trimethylpentan-2yl)benzene-1,2-diol. Magnetic
manganese ferrites were further created in the laboratory using a novel combustion method in order to blend the catalytic properties of
manganese with the magnetic and structural properties of ferrites. These laboratory prepared catalysts were thoroughly characterized using XRD, SEM, TEM, HR-TEM, and BET. Their magnetic properties have also been studied. These
manganese ferrites offer the potential to enhance hydroxyl radical production within catalytic ozonation systems. Thus their catalyst effectiveness was determined by measuring R_(ct), ozone exposure, hydroxyl radical production, and ozone decomposition. The effect of catalyst type, catalyst dosage, pre-ozonation, pH, and presence of dissolved organic matter (DOM) on the hydroxyl radical production during catalytic ozonation was also explored. An increase in ozone dosage, catalyst dosage, and PVA content enhanced organic removal in the system. Organic removal was lower at a decreased system pH, in the presence of DOM, and with increasing levels of Mn incorporated into the catalyst. Pre-ozonation of the catalyst at lower dosages did not have an effect on the system, though extensive pre-ozonation greatly reduced catalyst activity. Overall, R_(ct) and organic removal were not correlated.
Advisors/Committee Members: Boulanger, Bryan (advisor).
Subjects/Keywords: manganese oxide
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APA (6th Edition):
Desai, I. (2013). Manganese Based Oxidative Technologies For Water/Wastewater Treatment. (Thesis). Texas Digital Library. Retrieved from http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66536
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Desai, Ishan. “Manganese Based Oxidative Technologies For Water/Wastewater Treatment.” 2013. Thesis, Texas Digital Library. Accessed March 07, 2021.
http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66536.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Desai, Ishan. “Manganese Based Oxidative Technologies For Water/Wastewater Treatment.” 2013. Web. 07 Mar 2021.
Vancouver:
Desai I. Manganese Based Oxidative Technologies For Water/Wastewater Treatment. [Internet] [Thesis]. Texas Digital Library; 2013. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66536.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Desai I. Manganese Based Oxidative Technologies For Water/Wastewater Treatment. [Thesis]. Texas Digital Library; 2013. Available from: http://hdl.handle.net/1969; http://hdl.handle.net/2249.1/66536
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University
3.
Westermann, D. T. (Dale Thomas), 1941-.
The effect of chloride on the uptake of manganese by bush beans and sweet corn.
Degree: MS, Soils, 1965, Oregon State University
URL: http://hdl.handle.net/1957/48019
Subjects/Keywords: Manganese
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APA (6th Edition):
Westermann, D. T. (Dale Thomas), 1. (1965). The effect of chloride on the uptake of manganese by bush beans and sweet corn. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/48019
Chicago Manual of Style (16th Edition):
Westermann, D. T. (Dale Thomas), 1941-. “The effect of chloride on the uptake of manganese by bush beans and sweet corn.” 1965. Masters Thesis, Oregon State University. Accessed March 07, 2021.
http://hdl.handle.net/1957/48019.
MLA Handbook (7th Edition):
Westermann, D. T. (Dale Thomas), 1941-. “The effect of chloride on the uptake of manganese by bush beans and sweet corn.” 1965. Web. 07 Mar 2021.
Vancouver:
Westermann, D. T. (Dale Thomas) 1. The effect of chloride on the uptake of manganese by bush beans and sweet corn. [Internet] [Masters thesis]. Oregon State University; 1965. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/1957/48019.
Council of Science Editors:
Westermann, D. T. (Dale Thomas) 1. The effect of chloride on the uptake of manganese by bush beans and sweet corn. [Masters Thesis]. Oregon State University; 1965. Available from: http://hdl.handle.net/1957/48019

Oregon State University
4.
Mannion, William Alphonsus.
A study of the Mn⁺² and Pb⁺²-Mn⁺² impurity systems in alkali chlorides.
Degree: PhD, Chemistry, 1969, Oregon State University
URL: http://hdl.handle.net/1957/46051
Subjects/Keywords: Manganese
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APA (6th Edition):
Mannion, W. A. (1969). A study of the Mn⁺² and Pb⁺²-Mn⁺² impurity systems in alkali chlorides. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/46051
Chicago Manual of Style (16th Edition):
Mannion, William Alphonsus. “A study of the Mn⁺² and Pb⁺²-Mn⁺² impurity systems in alkali chlorides.” 1969. Doctoral Dissertation, Oregon State University. Accessed March 07, 2021.
http://hdl.handle.net/1957/46051.
MLA Handbook (7th Edition):
Mannion, William Alphonsus. “A study of the Mn⁺² and Pb⁺²-Mn⁺² impurity systems in alkali chlorides.” 1969. Web. 07 Mar 2021.
Vancouver:
Mannion WA. A study of the Mn⁺² and Pb⁺²-Mn⁺² impurity systems in alkali chlorides. [Internet] [Doctoral dissertation]. Oregon State University; 1969. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/1957/46051.
Council of Science Editors:
Mannion WA. A study of the Mn⁺² and Pb⁺²-Mn⁺² impurity systems in alkali chlorides. [Doctoral Dissertation]. Oregon State University; 1969. Available from: http://hdl.handle.net/1957/46051

Montana State University
5.
Stensland, Gary Joel.
Photoemission investigation of the electronic structure of manganese.
Degree: MS, College of Letters & Science, 1969, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/6157
Subjects/Keywords: Manganese.
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APA ·
Chicago ·
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APA (6th Edition):
Stensland, G. J. (1969). Photoemission investigation of the electronic structure of manganese. (Masters Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/6157
Chicago Manual of Style (16th Edition):
Stensland, Gary Joel. “Photoemission investigation of the electronic structure of manganese.” 1969. Masters Thesis, Montana State University. Accessed March 07, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/6157.
MLA Handbook (7th Edition):
Stensland, Gary Joel. “Photoemission investigation of the electronic structure of manganese.” 1969. Web. 07 Mar 2021.
Vancouver:
Stensland GJ. Photoemission investigation of the electronic structure of manganese. [Internet] [Masters thesis]. Montana State University; 1969. [cited 2021 Mar 07].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/6157.
Council of Science Editors:
Stensland GJ. Photoemission investigation of the electronic structure of manganese. [Masters Thesis]. Montana State University; 1969. Available from: https://scholarworks.montana.edu/xmlui/handle/1/6157

University of Arizona
6.
Felber, Danielle Maya.
Regulation of Metal Transporters, ZIP14 and ZnT10, by Manganese Intake in Mice
.
Degree: 2019, University of Arizona
URL: http://hdl.handle.net/10150/632599
► Manganese (Mn) is an essential trace mineral vital for many biological processes. ZIP14, ZnT10, and ZIP8 are proteins first identified as transporters for iron (Fe)…
(more)
▼ Manganese (Mn) is an essential trace mineral vital for many biological processes. ZIP14, ZnT10, and ZIP8 are proteins first identified as transporters for iron (Fe) and zinc (Zn). Current research now indicates a key role for these three metal transporters in regulating Mn homeostasis. However, there is still limited evidence to explain the regulatory mechanisms or how Mn status influences levels of Fe and Zn, which are believed to share several transport pathways with Mn. Here, we examined the effect of Mn intake on the regulation of these metal transporters by feeding mice a low-Mn diet, control diet, or high-Mn diet for 6 weeks. Levels of Mn, Fe, and Zn were measured using inductively coupled plasma mass spectrometry and protein levels of ZIP14, ZnT10, and ZIP8 were analyzed by Western Blot. While mice on the high-Mn diet exhibited significantly higher levels of Mn in the blood, liver, spleen, brain, and lungs, mice on the low-Mn diet did not display matching reductions, indicating Mn homeostasis is more challenging to maintain with high intake of Mn compared to low. Zn levels were not considerably altered and only minor reductions in Fe levels were observed in mice on the high-Mn diet, suggesting the regulation of these metals may not be as intertwined as previously believed. Interestingly, there was no difference in hepatic ZIP8 levels among the three diet groups. In response to the high-Mn diet, ZIP14 and ZnT10 were both upregulated in the liver, as well as in the small intestine, indicating a coordinated role for these two transporters in Mn excretion. Unexpectedly, this upregulation was only evident in male mice, with the exception of hepatic ZIP14, providing new insight into the mechanisms behind widely observed sex differences in Mn homeostasis.
Advisors/Committee Members: Zhao, Ningning (advisor), Teske, Jennifer (committeemember), Marian, Mary (committeemember).
Subjects/Keywords: Manganese;
Transporters
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APA ·
Chicago ·
MLA ·
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APA (6th Edition):
Felber, D. M. (2019). Regulation of Metal Transporters, ZIP14 and ZnT10, by Manganese Intake in Mice
. (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/632599
Chicago Manual of Style (16th Edition):
Felber, Danielle Maya. “Regulation of Metal Transporters, ZIP14 and ZnT10, by Manganese Intake in Mice
.” 2019. Masters Thesis, University of Arizona. Accessed March 07, 2021.
http://hdl.handle.net/10150/632599.
MLA Handbook (7th Edition):
Felber, Danielle Maya. “Regulation of Metal Transporters, ZIP14 and ZnT10, by Manganese Intake in Mice
.” 2019. Web. 07 Mar 2021.
Vancouver:
Felber DM. Regulation of Metal Transporters, ZIP14 and ZnT10, by Manganese Intake in Mice
. [Internet] [Masters thesis]. University of Arizona; 2019. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/10150/632599.
Council of Science Editors:
Felber DM. Regulation of Metal Transporters, ZIP14 and ZnT10, by Manganese Intake in Mice
. [Masters Thesis]. University of Arizona; 2019. Available from: http://hdl.handle.net/10150/632599

University of Arizona
7.
Ormsby, Walter Blackstone.
The crystal structure of manganese dioxide
.
Degree: 1930, University of Arizona
URL: http://hdl.handle.net/10150/553088
Subjects/Keywords: Manganese.
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APA ·
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MLA ·
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Export
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APA (6th Edition):
Ormsby, W. B. (1930). The crystal structure of manganese dioxide
. (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/553088
Chicago Manual of Style (16th Edition):
Ormsby, Walter Blackstone. “The crystal structure of manganese dioxide
.” 1930. Masters Thesis, University of Arizona. Accessed March 07, 2021.
http://hdl.handle.net/10150/553088.
MLA Handbook (7th Edition):
Ormsby, Walter Blackstone. “The crystal structure of manganese dioxide
.” 1930. Web. 07 Mar 2021.
Vancouver:
Ormsby WB. The crystal structure of manganese dioxide
. [Internet] [Masters thesis]. University of Arizona; 1930. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/10150/553088.
Council of Science Editors:
Ormsby WB. The crystal structure of manganese dioxide
. [Masters Thesis]. University of Arizona; 1930. Available from: http://hdl.handle.net/10150/553088

Georgia Tech
8.
Wiedeman, John Herman.
The reduction of manganese in reservoirs by the gaseous by-products of anaerobic bacterial activity.
Degree: MS, Public health engineering, 1956, Georgia Tech
URL: http://hdl.handle.net/1853/25344
Subjects/Keywords: Manganese
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APA ·
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APA (6th Edition):
Wiedeman, J. H. (1956). The reduction of manganese in reservoirs by the gaseous by-products of anaerobic bacterial activity. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/25344
Chicago Manual of Style (16th Edition):
Wiedeman, John Herman. “The reduction of manganese in reservoirs by the gaseous by-products of anaerobic bacterial activity.” 1956. Masters Thesis, Georgia Tech. Accessed March 07, 2021.
http://hdl.handle.net/1853/25344.
MLA Handbook (7th Edition):
Wiedeman, John Herman. “The reduction of manganese in reservoirs by the gaseous by-products of anaerobic bacterial activity.” 1956. Web. 07 Mar 2021.
Vancouver:
Wiedeman JH. The reduction of manganese in reservoirs by the gaseous by-products of anaerobic bacterial activity. [Internet] [Masters thesis]. Georgia Tech; 1956. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/1853/25344.
Council of Science Editors:
Wiedeman JH. The reduction of manganese in reservoirs by the gaseous by-products of anaerobic bacterial activity. [Masters Thesis]. Georgia Tech; 1956. Available from: http://hdl.handle.net/1853/25344

University of British Columbia
9.
Byfleet, Colin Russell.
An electron paramagnetic resonance study of a manganese (IV) ion in a trigonal environment.
Degree: PhD, Chemistry, 1969, University of British Columbia
URL: http://hdl.handle.net/2429/35954
► An electron spin resonance study has been carried out at room temperature, on a magnetically dilute single crystal of ammonium 9-molybdomanganate. A general method for…
(more)
▼ An electron spin resonance study has been carried out at room temperature, on a magnetically dilute single crystal of ammonium 9-molybdomanganate. A general method for fitting E.S.R. results to a spin Hamiltonian has been devised, and the results of the above study have been used as an example of this method. The values of the parameters thus determined were⃒D⃒= 0.861 ± 0.001 cm⁻¹; g〟 = 1.9920 ± 0.0004 cm⁻¹; g⊥± = 1.9880 ± 0.0004 cm⁻¹;⃒A〟⃒= 0.00760 ± 0.00004 cm⁻¹;⃒A⊥⃒= 0.00684 ± 0.00004 cm⁻¹1.
A review of previous theoretical calculations on d³ has been given, and a ligand field approach has been taken in an attempt to interpret the observed parameters. This was successful for the zero field splitting and hyperfine coupling constants, but not for the g-values.
The experimental results from a study of an irradiated, single crystal of deuterated ammonium paramolybdate tetrahydrate have also been fitted to a suitable spin Hamiltonian.
The principal axes of the g and A tensors were found not to be coincident, and a method for treating the experimental results in this situation has been given.
This study showed that the doublet splitting observed earlier, in the E.S.R. spectrum of the irradiated, undeuterated compound, was most probably due to a captured proton. An interpretation of the observed g-values and hyperfine coupling constants has been given, using a molecular orbital approach.
Subjects/Keywords: Manganese
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APA ·
Chicago ·
MLA ·
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Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Byfleet, C. R. (1969). An electron paramagnetic resonance study of a manganese (IV) ion in a trigonal environment. (Doctoral Dissertation). University of British Columbia. Retrieved from http://hdl.handle.net/2429/35954
Chicago Manual of Style (16th Edition):
Byfleet, Colin Russell. “An electron paramagnetic resonance study of a manganese (IV) ion in a trigonal environment.” 1969. Doctoral Dissertation, University of British Columbia. Accessed March 07, 2021.
http://hdl.handle.net/2429/35954.
MLA Handbook (7th Edition):
Byfleet, Colin Russell. “An electron paramagnetic resonance study of a manganese (IV) ion in a trigonal environment.” 1969. Web. 07 Mar 2021.
Vancouver:
Byfleet CR. An electron paramagnetic resonance study of a manganese (IV) ion in a trigonal environment. [Internet] [Doctoral dissertation]. University of British Columbia; 1969. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/2429/35954.
Council of Science Editors:
Byfleet CR. An electron paramagnetic resonance study of a manganese (IV) ion in a trigonal environment. [Doctoral Dissertation]. University of British Columbia; 1969. Available from: http://hdl.handle.net/2429/35954

University of Texas – Austin
10.
-0092-6316.
Cell and molecular mechanism of manganese transport by human SLC30A10.
Degree: PhD, Biochemistry, 2018, University of Texas – Austin
URL: http://dx.doi.org/10.26153/tsw/9332
► Manganese is an essential element, but overexposure is cytotoxic and has adverse effects on neurological health. In humans, manganese-induced neurotoxicity generally occurs due to exposure…
(more)
▼ Manganese is an essential element, but overexposure is cytotoxic and has adverse effects on neurological health. In humans,
manganese-induced neurotoxicity generally occurs due to exposure under occupational or environmental settings and resembles idiopathic Parkinson’s disease. In some cases, patients with compromised liver function due to diseases, such as cirrhosis, fail to excrete
manganese and may develop
manganese-induced parkinsonism in the absence of high exposure. While the nutritional and clinical significance of
manganese is established, cellular mechanisms of
manganese homeostasis are still unknown. A breakthrough in
manganese metabolism came from the identification of a familial form of parkinsonism reported to occur due to mutations in SLC30A10. Findings in our lab have since determined that SLC30A10 acts as the primary
manganese efflux transporter protein to protect cells against
manganese-induced toxicity. Interestingly, SLC30A10 disease-causing mutants from parkinsonian patients discussed above were unable protect against high
manganese. As
manganese is ubiquitous in the environment, the long-term goal is to elucidate SLC30A10’s role in metal-induced neurodegenerative processes, which in turn lead to Parkinson-like symptoms in patients. This gap in knowledge hinders treatment development and will persist if molecular mechanisms of SLC30A10 are not understood. Our hypothesis is that SLC30A10 binds and transports
manganese with higher affinity than other essential metals and that this activity is sensitive to cellular environment. Thus, the focus of this work was to determine the transport mechanism of SLC30A10 [subscript WT] using a combination of in vitro studies and physiologically relevant cell-based assays. A structure-function based mutagenesis strategy was used to target residues required for
manganese efflux. Confocal microscopy was employed to assess subcellular localization of SLC30A10 in hepatic HepG2 cells, neuronal AF5 cells, fibroblasts from Slc30a10 [superscript -/-] mice, as well as in HeLa and HEK cell lines. Cell viability assays were used to compare efflux activity of SLC30A10 mutants, and quantitative metal measurement using inductively-coupled plasma mass spectrometry was used to measure intracellular
manganese content and corroborate viability results. Taken together, findings from this study improve our understanding of cellular
manganese homeostasis as it relates to neurotoxicity and provide biochemical data on SLC30A10 important for developing therapies against
manganese toxicity
Advisors/Committee Members: Mukhopadhyay, Somshuvra (advisor), Appling, Dean (committee member), Fast, Walter (committee member), Keatinge-Clay, Adrian (committee member), Messing, Robert (committee member).
Subjects/Keywords: Manganese; Transporter
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
-0092-6316. (2018). Cell and molecular mechanism of manganese transport by human SLC30A10. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://dx.doi.org/10.26153/tsw/9332
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Chicago Manual of Style (16th Edition):
-0092-6316. “Cell and molecular mechanism of manganese transport by human SLC30A10.” 2018. Doctoral Dissertation, University of Texas – Austin. Accessed March 07, 2021.
http://dx.doi.org/10.26153/tsw/9332.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
MLA Handbook (7th Edition):
-0092-6316. “Cell and molecular mechanism of manganese transport by human SLC30A10.” 2018. Web. 07 Mar 2021.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Vancouver:
-0092-6316. Cell and molecular mechanism of manganese transport by human SLC30A10. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2018. [cited 2021 Mar 07].
Available from: http://dx.doi.org/10.26153/tsw/9332.
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete
Council of Science Editors:
-0092-6316. Cell and molecular mechanism of manganese transport by human SLC30A10. [Doctoral Dissertation]. University of Texas – Austin; 2018. Available from: http://dx.doi.org/10.26153/tsw/9332
Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Purdue University
11.
O'Neal, Stefanie.
Manganese Toxicity: Accumulation in Bone, Effect on Brain Neurochemistry, and Impact on Adult Neurogenesis.
Degree: PhD, Health Sciences, 2015, Purdue University
URL: https://docs.lib.purdue.edu/open_access_dissertations/1138
O’Neal, Stefanie L. Ph.D., Purdue University, December 2015. Manganese Toxicity: Accumulation in Bone, Effect on Neurochemistry, Impact on Adult Neurogenesis. Major Professor: Wei Zheng.
Advisors/Committee Members: Wei Zheng, Jason R Cannon, Ulrike Dydak, Yansheng Du.
Subjects/Keywords: manganese; neurogenesis
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
O'Neal, S. (2015). Manganese Toxicity: Accumulation in Bone, Effect on Brain Neurochemistry, and Impact on Adult Neurogenesis. (Doctoral Dissertation). Purdue University. Retrieved from https://docs.lib.purdue.edu/open_access_dissertations/1138
Chicago Manual of Style (16th Edition):
O'Neal, Stefanie. “Manganese Toxicity: Accumulation in Bone, Effect on Brain Neurochemistry, and Impact on Adult Neurogenesis.” 2015. Doctoral Dissertation, Purdue University. Accessed March 07, 2021.
https://docs.lib.purdue.edu/open_access_dissertations/1138.
MLA Handbook (7th Edition):
O'Neal, Stefanie. “Manganese Toxicity: Accumulation in Bone, Effect on Brain Neurochemistry, and Impact on Adult Neurogenesis.” 2015. Web. 07 Mar 2021.
Vancouver:
O'Neal S. Manganese Toxicity: Accumulation in Bone, Effect on Brain Neurochemistry, and Impact on Adult Neurogenesis. [Internet] [Doctoral dissertation]. Purdue University; 2015. [cited 2021 Mar 07].
Available from: https://docs.lib.purdue.edu/open_access_dissertations/1138.
Council of Science Editors:
O'Neal S. Manganese Toxicity: Accumulation in Bone, Effect on Brain Neurochemistry, and Impact on Adult Neurogenesis. [Doctoral Dissertation]. Purdue University; 2015. Available from: https://docs.lib.purdue.edu/open_access_dissertations/1138

Michigan State University
12.
Hoffman, James I.
The electrochemical deposition of manganese from an aqueous solution.
Degree: MS, Dept. of Geology, 1965, Michigan State University
URL: http://etd.lib.msu.edu/islandora/object/etd:11289
Subjects/Keywords: Manganese
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APA (6th Edition):
Hoffman, J. I. (1965). The electrochemical deposition of manganese from an aqueous solution. (Masters Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:11289
Chicago Manual of Style (16th Edition):
Hoffman, James I. “The electrochemical deposition of manganese from an aqueous solution.” 1965. Masters Thesis, Michigan State University. Accessed March 07, 2021.
http://etd.lib.msu.edu/islandora/object/etd:11289.
MLA Handbook (7th Edition):
Hoffman, James I. “The electrochemical deposition of manganese from an aqueous solution.” 1965. Web. 07 Mar 2021.
Vancouver:
Hoffman JI. The electrochemical deposition of manganese from an aqueous solution. [Internet] [Masters thesis]. Michigan State University; 1965. [cited 2021 Mar 07].
Available from: http://etd.lib.msu.edu/islandora/object/etd:11289.
Council of Science Editors:
Hoffman JI. The electrochemical deposition of manganese from an aqueous solution. [Masters Thesis]. Michigan State University; 1965. Available from: http://etd.lib.msu.edu/islandora/object/etd:11289

Rutgers University
13.
Lefkowitz, Joshua, 1977-.
Impacts of Mn(II) on Mn-oxide mineralogy and trace metal solubility and speciation in reaction systems containing birnessite.
Degree: PhD, Environmental Science, 2016, Rutgers University
URL: https://rucore.libraries.rutgers.edu/rutgers-lib/50538/
► This dissertation examines Mn(II)-birnessite interactions to improve understanding of the geochemical cycling of manganese, their influence on other elemental cycles, and the fate and solubility…
(more)
▼ This dissertation examines Mn(II)-birnessite interactions to improve understanding of the geochemical cycling of manganese, their influence on other elemental cycles, and the fate and solubility of trace metals through three studies that determined: (1) the influence of pH on Mn(II)-birnessite interactions under oxic and anoxic conditions, (2) how Zn(II) impacts Mn(II)-birnessite interactions, and (3) how Ni(II) impacts Mn(II)-birnessite interactions. UV-Vis spectroscopy and flame AAS were used in conjunction with XRD, XAS, ATR-FTIR and SEM to determine changes in solution chemistry concomitant with the reaction substrate in batch sorption experiments. Birnessite reacted at pH < 7.0 exhibited no bulk mineralogical transformation products. At pH 7.0-8.5, reaction with Mn(II) under anoxic conditions caused reductive transformation of birnessite into different end products contingent upon pH, the concentration of Mn(II) and/or the presence of either Zn(II) or Ni(II). For binary Mn(II)-birnessite systems, formation of feitknechtite (β-MnOOH) and manganite (γ-MnOOH) were observed at pH 7-8. At pH 8.0-8.5, Mn(II)-birnessite interactions produced hausmannite (Mn3O4). In oxic systems, reductive transformation of birnessite is complemented by surface catalyzed oxidation of Mn(II) by O2. Mn(II) was found to compete for sorption sites with Zn(II) at pH 6.5. At pH 7.5, Zn(II) and Mn(II) sorption were observed to be enhanced relative to the corresponding experiments where only one aqueous divalent metal was present. The speciation of Zn(II) was different than at pH 6.5 and XAS results in combination with XRD data demonstrate formation of spinel Zn(II)1-xMn(II)xMn(III)2O4. When Mn(II) is present in systems containing Ni(II)-birnessite at pH 6.5, Ni(II) edge-sharing surface complexes form. At pH 7.5, Mn(II) has a distinct impact on Ni(II) speciation. Transformation of Ni(II)-birnessite, following introduction of Mn(II), to a feitnechtite-like phase containing Ni(II) was evident by XRD and ATR-FTIR analyses; further conversion to manganite was inhibited. XAS, FTIR, and XRD analyses suggest that Ni(II) is incorporated into the feitknechtite-like structure. The results of this dissertation suggest that aqueous Mn(II) is an important control on the mineralogy and reactivity of natural Mn-oxides, as well as the fate and solubility of trace metals, particularly in aqueous geochemical environments with neutral to alkaline pH values.
Advisors/Committee Members: Lefkowitz, Joshua, 1977- (author), Elzinga, Evert (chair), Keating, Kristina (internal member), Ntarlagiannis, Dimitrios (internal member), Axe, Lisa (outside member).
Subjects/Keywords: Manganese oxides
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Lefkowitz, Joshua, 1. (2016). Impacts of Mn(II) on Mn-oxide mineralogy and trace metal solubility and speciation in reaction systems containing birnessite. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/50538/
Chicago Manual of Style (16th Edition):
Lefkowitz, Joshua, 1977-. “Impacts of Mn(II) on Mn-oxide mineralogy and trace metal solubility and speciation in reaction systems containing birnessite.” 2016. Doctoral Dissertation, Rutgers University. Accessed March 07, 2021.
https://rucore.libraries.rutgers.edu/rutgers-lib/50538/.
MLA Handbook (7th Edition):
Lefkowitz, Joshua, 1977-. “Impacts of Mn(II) on Mn-oxide mineralogy and trace metal solubility and speciation in reaction systems containing birnessite.” 2016. Web. 07 Mar 2021.
Vancouver:
Lefkowitz, Joshua 1. Impacts of Mn(II) on Mn-oxide mineralogy and trace metal solubility and speciation in reaction systems containing birnessite. [Internet] [Doctoral dissertation]. Rutgers University; 2016. [cited 2021 Mar 07].
Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/50538/.
Council of Science Editors:
Lefkowitz, Joshua 1. Impacts of Mn(II) on Mn-oxide mineralogy and trace metal solubility and speciation in reaction systems containing birnessite. [Doctoral Dissertation]. Rutgers University; 2016. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/50538/

University of Utah
14.
Hwang, Su Hyun.
Phosphorus removal from manganese ore by plasma treatment.
Degree: MS, Metallurgical Engineering, 2011, University of Utah
URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/218/rec/1851
► The contents of impurities, especially that of phosphorus, in manganese metal or in ferromanganese used in steelmaking are an important factor that affects product quality.…
(more)
▼ The contents of impurities, especially that of phosphorus, in manganese metal or in ferromanganese used in steelmaking are an important factor that affects product quality. More than 80% of phosphorus in the manganese products is introduced from manganese ore, the rest coming from coke and lime. Once it is absorbed into a molten manganese ore ferromanganese phase, it cannot be easily removed by smelting, and thus, ferromanganese must generally be low in phosphorus to begin with. As good quality ores of low phosphorus are depleted, the phosphorus content in manganese ores increases, and thus, the development of a new dephosphorization technology is needed. For this purpose, the removal of phosphorus compounds by vaporization directly from manganese ores using a plasma system was investigated in this study. For the removal of phosphorus, the effects of argon gas flow rate, hydrogen gas content in the plasma gas, and plasma torch power were analyzed. In addition, based on the thermal decomposition of hematite in the ores into magnetite at a high temperature, a magnetic separation was conducted after plasma treatment aiming to upgrade manganese ores. For the removal of phosphorus, a low argon gas flow rate and a high torch power were found to be effective, and the use of hydrogen gas as a reducing agent was more favorable than without. Magnetic separation after plasma treatment improved the ore grade with a decrease of iron content in the ore.
Subjects/Keywords: Ferro-manganese; Manganese ore; Phosphorus; Plasma
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MLA ·
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APA (6th Edition):
Hwang, S. H. (2011). Phosphorus removal from manganese ore by plasma treatment. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/218/rec/1851
Chicago Manual of Style (16th Edition):
Hwang, Su Hyun. “Phosphorus removal from manganese ore by plasma treatment.” 2011. Masters Thesis, University of Utah. Accessed March 07, 2021.
http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/218/rec/1851.
MLA Handbook (7th Edition):
Hwang, Su Hyun. “Phosphorus removal from manganese ore by plasma treatment.” 2011. Web. 07 Mar 2021.
Vancouver:
Hwang SH. Phosphorus removal from manganese ore by plasma treatment. [Internet] [Masters thesis]. University of Utah; 2011. [cited 2021 Mar 07].
Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/218/rec/1851.
Council of Science Editors:
Hwang SH. Phosphorus removal from manganese ore by plasma treatment. [Masters Thesis]. University of Utah; 2011. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/218/rec/1851
15.
Drahoš, Bohuslav.
Potential contrast agents for MRI based on manganese (II) complexes : Les agents de contrast potentiels pour MRI derivé par les complexes de manganese(II).
Degree: Docteur es, Chimie inorganique, 2011, Orléans; Univerzita Karlova (Prague)
URL: http://www.theses.fr/2011ORLE2039
► La thèse se concentre sur la synthèse et la caractérisation de nouveaux complexes de manganèse comme alternative possible aux complexes de gadolinium, actuellement les agents…
(more)
▼ La thèse se concentre sur la synthèse et la caractérisation de nouveaux complexes de manganèse comme alternative possible aux complexes de gadolinium, actuellement les agents de contraste de choix pour l’Imagerie par Résonance Magnétique (IRM). Dans cette perspective, nous nous sommes intéressés à trois groupes de ligands pentadentés pour la complexation de Mn2+. Des nombres de coordination de 6 ou 7 ont été déterminés par cristallographie pour ces complexes, permettant la coordination d’une ou deux molécules d’eau en première sphère de coordination de Mn2+. La stabilité thermodynamique de ces complexes est plus faible que celle de complexes polyaminocarboxylates et leur dissociation est très rapide comparée à [Mn(nota)] et [Mn(dota)]2-. Seuls les complexes de Mn2+ avec des ligands macrocycliques à 12 atomes sont oxydés en Mn3+ à l’air. Les relaxivités des complexes bishydratés sont deux fois plus élevées que celles des complexes monohydratés et elles sont comparables à celles des agents de contraste commerciaux. Les données de RMN d’17O mesurées à différentes températures ont montré que l’échange d’eau peut être lent, intermédiaire, ou rapide selon le ligand. Les mesures à hautes pressions ont confirmé que le mécanisme d’échange est de type dissociatif pour les complexes avec un nombre de coordination de 7 et de type associatif pour les complexes avec un nombre de coordination de 6. Les petits anions bidentés endogènes peuvent remplacer une molécule d’eau dans les complexes bishydratés de macrocycles pentaazotés à 15 atomes, alors que pour les autres soit le complexe se décompose, soit il n’y a pas d’influence.
The thesis is focused on the synthesis and characterization of novel manganese complexes as alternative to Gd3+ chelates which are wide-spread contrast agents in Magnetic Resonance Imaging (MRI). In this perspective, three structurally different groups of pentadentate ligands for Mn2+ complexation have been investigated. Coordination numbers of 6 or 7 were determined in the crystal structure of the Mn2+ complexes enabling one or two water molecules in the first sphere. The thermodynamic stability of the chelates is lower than that of polyaminocarboxylate complexes and their dissociation is very fast in comparison to [Mn(nota)] and [Mn(dota)]2–. Only Mn2+ complexes with 12- membered ligands undergo oxidation in air to Mn3+ species. The proton relaxivities of the bishydrated complexes are two times higher than those for monohydrated complexes and are comparable to those of commercial contrast agents. Variable-temperature 17O NMR data revealed that the water exchange varies from slow to intermediate or to extremely fast, depending on the ligand. High-pressure 17O NMR measurements confirmed dissociative water exchange mechanism on complexes with CN = 7 and associative mechanism on complexes with CN = 6. Small endogenous bidentate anions are capable of replacing only one water molecule in the bishydrated complex with the 15-membered pentaaza ligand (L2), while in other cases the complex is decomposed or no…
Advisors/Committee Members: Jakab-Toth, Eva (thesis director), Lukeš, Ivan (thesis director).
Subjects/Keywords: Complexes de manganese(II); Manganese(II) complexes
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Drahoš, B. (2011). Potential contrast agents for MRI based on manganese (II) complexes : Les agents de contrast potentiels pour MRI derivé par les complexes de manganese(II). (Doctoral Dissertation). Orléans; Univerzita Karlova (Prague). Retrieved from http://www.theses.fr/2011ORLE2039
Chicago Manual of Style (16th Edition):
Drahoš, Bohuslav. “Potential contrast agents for MRI based on manganese (II) complexes : Les agents de contrast potentiels pour MRI derivé par les complexes de manganese(II).” 2011. Doctoral Dissertation, Orléans; Univerzita Karlova (Prague). Accessed March 07, 2021.
http://www.theses.fr/2011ORLE2039.
MLA Handbook (7th Edition):
Drahoš, Bohuslav. “Potential contrast agents for MRI based on manganese (II) complexes : Les agents de contrast potentiels pour MRI derivé par les complexes de manganese(II).” 2011. Web. 07 Mar 2021.
Vancouver:
Drahoš B. Potential contrast agents for MRI based on manganese (II) complexes : Les agents de contrast potentiels pour MRI derivé par les complexes de manganese(II). [Internet] [Doctoral dissertation]. Orléans; Univerzita Karlova (Prague); 2011. [cited 2021 Mar 07].
Available from: http://www.theses.fr/2011ORLE2039.
Council of Science Editors:
Drahoš B. Potential contrast agents for MRI based on manganese (II) complexes : Les agents de contrast potentiels pour MRI derivé par les complexes de manganese(II). [Doctoral Dissertation]. Orléans; Univerzita Karlova (Prague); 2011. Available from: http://www.theses.fr/2011ORLE2039

Texas A&M University
16.
Smyth, Alison Michelle.
The Effects of Ozone Deposition and Dissolved Organic Matter on Manganese Speciation in the Surface Ocean.
Degree: MS, Oceanography, 2014, Texas A&M University
URL: http://hdl.handle.net/1969.1/153557
► Despite the known reactivity of ozone (O_(3)) in water and ozone’s environmental importance in the atmosphere, there are relatively few studies published examining the chemistry…
(more)
▼ Despite the known reactivity of ozone (O_(3)) in water and ozone’s environmental importance in the atmosphere, there are relatively few studies published examining the chemistry of O_(3) in seawater. This study focused on developing a flow injection analysis (FIA) chemiluminescence system to measure Mn(II) in order to investigate the effect of O_(3) deposition to the sea surface on Mn speciation. Modifications to earlier FIA systems had to be made in order to accommodate the relatively high concentrations of Mn(II) (200 nmol/kg) in these experiments. Experiments were also conducted where seawater containing different concentrations of Mn(IV) particles and organic carbon were exposed to gas streams containing different levels of O_(3). Ozone was not found to affect the concentration of Mn(II) in seawater.
Advisors/Committee Members: Yvon-Lewis, Shari A (advisor), Liss, Peter S (committee member), Chapman, Piers (committee member), Brooks, Sarah D (committee member).
Subjects/Keywords: Manganese; Seawater; Ozone
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Smyth, A. M. (2014). The Effects of Ozone Deposition and Dissolved Organic Matter on Manganese Speciation in the Surface Ocean. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/153557
Chicago Manual of Style (16th Edition):
Smyth, Alison Michelle. “The Effects of Ozone Deposition and Dissolved Organic Matter on Manganese Speciation in the Surface Ocean.” 2014. Masters Thesis, Texas A&M University. Accessed March 07, 2021.
http://hdl.handle.net/1969.1/153557.
MLA Handbook (7th Edition):
Smyth, Alison Michelle. “The Effects of Ozone Deposition and Dissolved Organic Matter on Manganese Speciation in the Surface Ocean.” 2014. Web. 07 Mar 2021.
Vancouver:
Smyth AM. The Effects of Ozone Deposition and Dissolved Organic Matter on Manganese Speciation in the Surface Ocean. [Internet] [Masters thesis]. Texas A&M University; 2014. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/1969.1/153557.
Council of Science Editors:
Smyth AM. The Effects of Ozone Deposition and Dissolved Organic Matter on Manganese Speciation in the Surface Ocean. [Masters Thesis]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/153557

Northeastern University
17.
Alsulimani, Helal.
Effect of hemochromatosis on manganese neurotoxicity.
Degree: PhD, School of Pharmacy, 2017, Northeastern University
URL: http://hdl.handle.net/2047/D20261904
► Manganese (Mn) is an essential element for normal brain function, but excess levels of Mn in the brain are associated with a number of behavioral…
(more)
▼ Manganese (Mn) is an essential element for normal brain function, but excess levels of Mn in the brain are associated with a number of behavioral problems, including motor dysfunction, memory loss and psychiatric disorders. While Mn is known to share iron transporters for cellular uptake, deficiency in the Hfe (hemochromatosis), a cellular iron regulatory protein, affects the activities of iron transporters and impairs iron metabolism. Previously it was shown that Mn uptake into the brain is increased after intranasal exposure to Mn in Hfe-deficient mice, a mouse model of iron overload hereditary hemochromatosis. However, there is limited information about the effect of Hfe deficiency on Mn toxicity after exposure by other routes. Mn exposure is common through ingestion and inhalation in both environmental and occupational settings. Because Hfe deficiency alters iron transporters, and since Mn shares iron transporters, I hypothesize that Hfe deficiency increases Mn toxicity by modulating Mn uptake from the absorption site and deposition into the target organ for Mn toxicity which is the brain after gastric exposure in drinking water and pulmonary exposure to Mn particles. Specific aims are focused on the effect of Hfe deficiency on 1) the expression levels of metal transporters in the brain, gut and lung including alveolar macrophages, 2) levels of Mn, 3) Mn-associated neurobehavioral impairments, and 4) mechanisms of Mn neurotoxicity. This research will enhance the knowledge of Mn exposure and uptake in Hfe-related hemochromatosis, a prevalent iron disorder in the world.
Subjects/Keywords: hemochromatosis; manganese; neurotoxicity
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APA ·
Chicago ·
MLA ·
Vancouver ·
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Export
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APA (6th Edition):
Alsulimani, H. (2017). Effect of hemochromatosis on manganese neurotoxicity. (Doctoral Dissertation). Northeastern University. Retrieved from http://hdl.handle.net/2047/D20261904
Chicago Manual of Style (16th Edition):
Alsulimani, Helal. “Effect of hemochromatosis on manganese neurotoxicity.” 2017. Doctoral Dissertation, Northeastern University. Accessed March 07, 2021.
http://hdl.handle.net/2047/D20261904.
MLA Handbook (7th Edition):
Alsulimani, Helal. “Effect of hemochromatosis on manganese neurotoxicity.” 2017. Web. 07 Mar 2021.
Vancouver:
Alsulimani H. Effect of hemochromatosis on manganese neurotoxicity. [Internet] [Doctoral dissertation]. Northeastern University; 2017. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/2047/D20261904.
Council of Science Editors:
Alsulimani H. Effect of hemochromatosis on manganese neurotoxicity. [Doctoral Dissertation]. Northeastern University; 2017. Available from: http://hdl.handle.net/2047/D20261904

University of Johannesburg
18.
Gutzmer, Jens.
Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa.
Degree: PhD, 2012, University of Johannesburg
URL: http://hdl.handle.net/10210/5803
► The economically important sedimentary manganese deposits of the Paleoproterozoic Kalahari and Postmasburg manganese fields, are situated in close geographic vicinity to each other in the…
(more)
▼ The economically important sedimentary manganese deposits of the Paleoproterozoic Kalahari and Postmasburg manganese fields, are situated in close geographic vicinity to each other in the Griqualand West region of the Northern Cape Province, South Africa. This thesis describes aspects of mineralogy, petrography and geochemistry of the manganese ores with the purpose to establish genetic models for genesis and alteration of manganese ores of both manganese fields. The Kalahari manganese field, situated some 60 km northwest of Kuruman, is the largest known land-based manganese deposit. Manganese ores occur interbedded with iron-formations of the Hotazel Formation of the Voelwater Subgroup of the Late Archean-Paleoproterozoic Transvaal Supergroup. The sediments of the Voelwater Subgroup are preserved in five erosional relics, of which the Kalahari manganese deposit is by far the largest and the only one of economic importance. Two types of ore are mined, low-grade sedimentary Mamatwan-type ore and high-grade Wesselstype ore. Mamatwan-type ore is represented by microcrystalline laminated braunite-lutite composed of kutnahorite, Mn-calcite, braunite and hematite, modified by the occurrence of late diagenetic or metamorphic hausmannite, partridgeite, manganite and calcite. Mamatwan-type ore contains up to 38 mass % Mn and constitutes about 97 % of the ore reserves in the Kalahari manganese deposit. High-grade Wessels-type ore, with a manganese content of between 42 to 48 mass % Mn (on average), constitutes about 3 % of the ore reserves. It occurs only in the northwestern part of the main Kalahari deposit, and in small deposits at Hotazel and Langdon, in association with a system of north-south striking normal faults. The Wessels alteration event is thought to be related to the Kibaran orogenetic event (about 1.1 Ga). Fault zones are ferruginized and alongside faults sedimentary Mamatwan-type ore has been hydrothermally upgraded to Wessels-type ore. Metasomatic fronts are defined by changing mineral associations. These associations clearly illustrate that decreasing degrees of alteration relate to increasing distance from the fluid feeders. Areas of unaltered Mamatwan-type ore are preserved in the core of fault blocks. Wessels-type ore consists mostly of hausmannite, bixbyite, braunite II and manganite and subordinate gangue minerals such as clinochlore and andradite but the mineral assemblage associated with the Wessels alteration event is unusually diverse. More than 100 minerals have been identified, amongst them 8 new mineral species and an unusual, ferrimagnetic, Fe-rich variety of hausmannite. Mass balance calculations illustrate that the upgrading of the Wessels-type manganese ore is a consequence of leaching of CaO, MgO, CO 2, and Si02 from a low-grade Mamatwan-type precursor. This metasomatic process results in increasing secondary porosities, compaction of the orebody to two thirds of its original thickness and consequently residual enrichment of manganese in the ores. Three younger alteration events are observed…
Subjects/Keywords: Manganese ores - South Africa; Manganese - South Africa; Manganese ores - Geology
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gutzmer, J. (2012). Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa. (Doctoral Dissertation). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/5803
Chicago Manual of Style (16th Edition):
Gutzmer, Jens. “Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa.” 2012. Doctoral Dissertation, University of Johannesburg. Accessed March 07, 2021.
http://hdl.handle.net/10210/5803.
MLA Handbook (7th Edition):
Gutzmer, Jens. “Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa.” 2012. Web. 07 Mar 2021.
Vancouver:
Gutzmer J. Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa. [Internet] [Doctoral dissertation]. University of Johannesburg; 2012. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/10210/5803.
Council of Science Editors:
Gutzmer J. Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa. [Doctoral Dissertation]. University of Johannesburg; 2012. Available from: http://hdl.handle.net/10210/5803

University of Johannesburg
19.
Coertzen, Wouter Johan.
A proposed TQM model for a cellhouse producing electrolytic manganese.
Degree: 2014, University of Johannesburg
URL: http://hdl.handle.net/10210/8945
► M.Tech. (Operations Management)
Total Quality Management is a management philosophy embracing all activities through which the needs and requirements of customers and the objectives of…
(more)
▼ M.Tech. (Operations Management)
Total Quality Management is a management philosophy embracing all activities through which the needs and requirements of customers and the objectives of the organisation are satisfied in a cost effective way through a drive for continuous improvement. Kaizen is a Japanese philosophy and is defined as a process of continuous improvement. It reflects a common-sense, low-cost approach to managing an organisation. A literature review was undertaken on the subjects of Total Quality Management (TQM)principles and Kaizen philosophy and a TQM model was developed for the cellhouse at Manganese Metal Company basedon information from literature review. The cellhouse is part of an organisation that has ISO 9002 accreditation and produces electrolytic manganese metal for customers world-wide. The quality assurance system defines guidelines for producing a quality product, on time and conforming to the required product specifications. The model is designed to complement current quality control philosophy and provide guidance for maintaining and improving the quality assurance programme. All cellhouse employees will be actively involved in participating in a process of improvement on an ongoing basis.
Subjects/Keywords: Total quality management; Electrolytic manganese; Manganese; Manganese Metal Company (Firm : South Africa)
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APA ·
Chicago ·
MLA ·
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Export
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APA (6th Edition):
Coertzen, W. J. (2014). A proposed TQM model for a cellhouse producing electrolytic manganese. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/8945
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Coertzen, Wouter Johan. “A proposed TQM model for a cellhouse producing electrolytic manganese.” 2014. Thesis, University of Johannesburg. Accessed March 07, 2021.
http://hdl.handle.net/10210/8945.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Coertzen, Wouter Johan. “A proposed TQM model for a cellhouse producing electrolytic manganese.” 2014. Web. 07 Mar 2021.
Vancouver:
Coertzen WJ. A proposed TQM model for a cellhouse producing electrolytic manganese. [Internet] [Thesis]. University of Johannesburg; 2014. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/10210/8945.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Coertzen WJ. A proposed TQM model for a cellhouse producing electrolytic manganese. [Thesis]. University of Johannesburg; 2014. Available from: http://hdl.handle.net/10210/8945
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universiteit Utrecht
20.
Nawrocki, R.P.
Role of manganese: Are welders at risk?.
Degree: 2012, Universiteit Utrecht
URL: http://dspace.library.uu.nl:8080/handle/1874/253889
► Serious concerns exist among welders and occupational health investigators on the possible association between exposure to manganese via welding fumes and neurological effects. One suggestion…
(more)
▼ Serious concerns exist among welders and occupational health investigators on the possible association between exposure to
manganese via welding fumes and neurological effects. One suggestion is that exposure to welding fumes is associated with the development of Parkinson’s disease.
This report is a review of literature that focuses on issues related to welders exposure to
manganese and subsequent risk to develop Parkinson’s disease. Aspects of the essential element
manganese, its presence in welding processes and its transport routes to the brain are briefly discussed. A description of the effects of
manganese on the central nerve system is presented and the disorders related to the adverse effects of
manganese are discussed. Next genetic factors that play a role in early-onset Parkinson’s disease are summarized and explained and neurological risks associated with welding fume exposure are discussed.
The exact mechanisms of, and risks factors for, developing Parkinson’s disease are not yet fully understood, but currently, a lot of research on most of the mechanisms involved is ongoing. Nonetheless, sufficient evidence exists pointing at an association between
manganese exposure and (the development of) Parkinson’s disease.
Advisors/Committee Members: Blaauboer, B..
Subjects/Keywords: manganese; parkinsons disease; welders
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Chicago ·
MLA ·
Vancouver ·
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APA (6th Edition):
Nawrocki, R. P. (2012). Role of manganese: Are welders at risk?. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/253889
Chicago Manual of Style (16th Edition):
Nawrocki, R P. “Role of manganese: Are welders at risk?.” 2012. Masters Thesis, Universiteit Utrecht. Accessed March 07, 2021.
http://dspace.library.uu.nl:8080/handle/1874/253889.
MLA Handbook (7th Edition):
Nawrocki, R P. “Role of manganese: Are welders at risk?.” 2012. Web. 07 Mar 2021.
Vancouver:
Nawrocki RP. Role of manganese: Are welders at risk?. [Internet] [Masters thesis]. Universiteit Utrecht; 2012. [cited 2021 Mar 07].
Available from: http://dspace.library.uu.nl:8080/handle/1874/253889.
Council of Science Editors:
Nawrocki RP. Role of manganese: Are welders at risk?. [Masters Thesis]. Universiteit Utrecht; 2012. Available from: http://dspace.library.uu.nl:8080/handle/1874/253889
21.
Kachhawaha, M S.
Physico chemical studies of manganese
complexes; -.
Degree: Chemistry, 1961, INFLIBNET
URL: http://shodhganga.inflibnet.ac.in/handle/10603/41898
Subjects/Keywords: manganese complexes
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Kachhawaha, M. S. (1961). Physico chemical studies of manganese
complexes; -. (Thesis). INFLIBNET. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/41898
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kachhawaha, M S. “Physico chemical studies of manganese
complexes; -.” 1961. Thesis, INFLIBNET. Accessed March 07, 2021.
http://shodhganga.inflibnet.ac.in/handle/10603/41898.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kachhawaha, M S. “Physico chemical studies of manganese
complexes; -.” 1961. Web. 07 Mar 2021.
Vancouver:
Kachhawaha MS. Physico chemical studies of manganese
complexes; -. [Internet] [Thesis]. INFLIBNET; 1961. [cited 2021 Mar 07].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/41898.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kachhawaha MS. Physico chemical studies of manganese
complexes; -. [Thesis]. INFLIBNET; 1961. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/41898
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Alberta
22.
Zhang, Lin.
Thin film manganese silicides: mechanisms of formation and
optical properties.
Degree: MS, Department of Mining, Metallurgical and Petroleum
Engineering, 1990, University of Alberta
URL: https://era.library.ualberta.ca/files/hd76s254k
Subjects/Keywords: Manganese silicide.
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Zhang, L. (1990). Thin film manganese silicides: mechanisms of formation and
optical properties. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/hd76s254k
Chicago Manual of Style (16th Edition):
Zhang, Lin. “Thin film manganese silicides: mechanisms of formation and
optical properties.” 1990. Masters Thesis, University of Alberta. Accessed March 07, 2021.
https://era.library.ualberta.ca/files/hd76s254k.
MLA Handbook (7th Edition):
Zhang, Lin. “Thin film manganese silicides: mechanisms of formation and
optical properties.” 1990. Web. 07 Mar 2021.
Vancouver:
Zhang L. Thin film manganese silicides: mechanisms of formation and
optical properties. [Internet] [Masters thesis]. University of Alberta; 1990. [cited 2021 Mar 07].
Available from: https://era.library.ualberta.ca/files/hd76s254k.
Council of Science Editors:
Zhang L. Thin film manganese silicides: mechanisms of formation and
optical properties. [Masters Thesis]. University of Alberta; 1990. Available from: https://era.library.ualberta.ca/files/hd76s254k

Oregon State University
23.
Murphy, Kim Marie.
Transition metal and rare earth element fluxes at two sites in the eastern tropical Pacific : relationship to ferromanganese nodule genesis.
Degree: MS, Oceanography, 1984, Oregon State University
URL: http://hdl.handle.net/1957/29593
► Transition metal and rare earth element (REE) data are presented for various sedimentary materials from two Manganese Nodule Program (MANOP) sites in the eastern tropical…
(more)
▼ Transition metal and rare earth element (REE) data are presented
for various sedimentary materials from two
Manganese Nodule
Program (MANOP) sites in the eastern tropical Pacific. These data
constrain the sources of elemental supply to the seafloor and the
processes that control ferromanganese nodule genesis. Investigation
of elemental partitioning between suspended particles, sediments,
ferromanganese nodules, crusts, and micronodules indicates that
particle settling dominates REE supply to the seafloor at MANOP site
H. Partitioning of the particle flux reveals that although detrital
and labile particles both convey REE to H sediments and nodules,
labile biogenic debris is the primary source of REE accreted by site
H nodules.
Evidence from REE abundance patterns and correlations of REE
with other elements define three basic processes of nodule accretion:
(1) hydrogenous or direct seawater precipitation; (2) oxic
diagenesis, referring to a variety of ferromanganese accretion processes
which occur in oxic sediments; and (3) suboxic diagenesis, in
which Mn is mobilized by the oxidation of sedimentary organic matter.
The REE geochemistry of site H nodules suggests an additional
accretionary process, resulting from the degradation of labile
organic matter in an oxic environment.
Contrasts in REE patterns, major element compositions, and
fluxes of various elements in sedimentary samples from MANOP site H
(a nodule-bearing site) with site M (a nodule-free site) reveal
differences in the sources of material to the seafloor in the two
environments. Geochemical data imply a greater hydrothermal influence
and a greater accumulation of organic carbon in site M sediments
relative to those at site H. Comparisons of the REE and major
element geochemistry of H and M sediment traps, sediments, and
crusts, as well as nodules from site H, imply that the reductive
mobilization of Mn and geochemically similar elements is controlled
primarily by surface water biological productivity and the accumulation
of organic carbon in the sediments. The organic flux to the
sediments determines the degree of depletion of oxidants, which
governs the reduction, mobilization, and supply of metals to nodule
surfaces. It appears that the depth to the Mn redox boundary and
possibly seasonal variations in the flux of organic material to the
seafloor determine whether nodules grow or whether Mn is exported to
bottom waters.
Advisors/Committee Members: Dymond, Jack (advisor), Heath, Ross (committee member).
Subjects/Keywords: Manganese nodules
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Murphy, K. M. (1984). Transition metal and rare earth element fluxes at two sites in the eastern tropical Pacific : relationship to ferromanganese nodule genesis. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/29593
Chicago Manual of Style (16th Edition):
Murphy, Kim Marie. “Transition metal and rare earth element fluxes at two sites in the eastern tropical Pacific : relationship to ferromanganese nodule genesis.” 1984. Masters Thesis, Oregon State University. Accessed March 07, 2021.
http://hdl.handle.net/1957/29593.
MLA Handbook (7th Edition):
Murphy, Kim Marie. “Transition metal and rare earth element fluxes at two sites in the eastern tropical Pacific : relationship to ferromanganese nodule genesis.” 1984. Web. 07 Mar 2021.
Vancouver:
Murphy KM. Transition metal and rare earth element fluxes at two sites in the eastern tropical Pacific : relationship to ferromanganese nodule genesis. [Internet] [Masters thesis]. Oregon State University; 1984. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/1957/29593.
Council of Science Editors:
Murphy KM. Transition metal and rare earth element fluxes at two sites in the eastern tropical Pacific : relationship to ferromanganese nodule genesis. [Masters Thesis]. Oregon State University; 1984. Available from: http://hdl.handle.net/1957/29593

Cornell University
24.
Bocioaga, Daniela.
Understanding The Molecular Mechanism Of Manganese Oxidation In Leptothrix Discophora Ss1.
Degree: PhD, Microbiology, 2013, Cornell University
URL: http://hdl.handle.net/1813/34222
► The purpose of this research is to understand the molecular mechanism of manganese oxidation in Leptothrix discophora SS1 which until now has been hampered by…
(more)
▼ The purpose of this research is to understand the molecular mechanism of
manganese oxidation in Leptothrix discophora SS1 which until now has been hampered by the lack of a genetic system. Leptothrix discophora SS1 is an important model organism that has been used to study the mechanism and consequences of biological
manganese oxidation. In this study we report on the development of a genetic system for L. discophora. First, the antibiotic sensitivity of L. discophora was characterized and a procedure for transformation with exogenous DNA via conjugation was developed and optimized, resulting in a maximum transfer frequency of 5.2*10-1 (transconjugant/donor). Genetic manipulation of Leptothrix was demonstrated by disrupting pyrF via chromosomal integration of a plasmid with an R6Kɣ ori through homologous recombination. This resulted in resistance to fluoroorotidine which was abolished by complementation with an ectopically expressed copy of pyrF cloned into pBBR1MCS-5. This genetic system was further used to disrupt five genes in Leptothrix discophora SS1, which were considered to be the best candidates for the enzyme encoding the
manganese oxidizing activity in this bacterium. All of the disrupted mutants continued to oxidize
manganese, suggesting that these genes may not play a role in
manganese oxidation, as hypothesized. MofA a putative muticopper oxidase, identified from the oxidizing fraction of Leptothrix discophora SS1 supernatant to encode the
manganese oxidizing activity, was deleted from the genome and the cells lacking mofA did not lose the ability to oxidize
manganese. This finding suggests that mofA is dispensable to Mn oxidation in Leptothrix. Transposon mutagenesis performed on a [INCREMENT]mofA Leptothrix strain resulted in the isolation of white, non-
manganese oxidizing mutants. Mapping of the transposon insertions identified insertions in 4 genes located in 2 regions on the chromosome. One of the genes, named mnxG2 is a putative multicopper oxidase similar to the
manganese oxidizing enzyme in Bacillus sp SG-1. The other three genes with insertions encode a hypothetical protein, a putative cytochrome c next to a putative copper metallochaperone (Sco1/SenC/PrrC) involved in the biogenesis of cytochrome oxidase. Further analysis of the nonmanganese oxidizing mutants identified through transposon mutagenesis coupled with the draft genome sequence of Leptothrix discophora SS1 should provide information about the number and the nature of proteins involved in
manganese oxidation in this bacterium. The draft genome of Leptothrix discophora SS1 contains 4.2Mb with 3,791 identified protein coding sequences. In contrast with previous information of Leptothrix as an obligate aerobic heterotroph, functional analysis of the draft genome revealed the potential for a diverse metabolism such as fermentation, anaerobic respiration with nitrate and arsenate, sulfur oxidation and carbon fixation. The information provided by the draft genome about the metabolism of L. discophora SS1 as well as genomic context…
Advisors/Committee Members: Hay, Anthony G. (chair), Lion, Leonard William (committee member), Helmann, John D (committee member), Ghiorse, William Cushing (committee member).
Subjects/Keywords: manganese oxidation; leptothrix; sheathed bacteria
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bocioaga, D. (2013). Understanding The Molecular Mechanism Of Manganese Oxidation In Leptothrix Discophora Ss1. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/34222
Chicago Manual of Style (16th Edition):
Bocioaga, Daniela. “Understanding The Molecular Mechanism Of Manganese Oxidation In Leptothrix Discophora Ss1.” 2013. Doctoral Dissertation, Cornell University. Accessed March 07, 2021.
http://hdl.handle.net/1813/34222.
MLA Handbook (7th Edition):
Bocioaga, Daniela. “Understanding The Molecular Mechanism Of Manganese Oxidation In Leptothrix Discophora Ss1.” 2013. Web. 07 Mar 2021.
Vancouver:
Bocioaga D. Understanding The Molecular Mechanism Of Manganese Oxidation In Leptothrix Discophora Ss1. [Internet] [Doctoral dissertation]. Cornell University; 2013. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/1813/34222.
Council of Science Editors:
Bocioaga D. Understanding The Molecular Mechanism Of Manganese Oxidation In Leptothrix Discophora Ss1. [Doctoral Dissertation]. Cornell University; 2013. Available from: http://hdl.handle.net/1813/34222
25.
Caldera, Emmanuel.
Examining in vitro and in vivo characteristics of Intellibond and sulfate forms of copper, zinc, and manganese.
Degree: PhD, Animal Sciences, 2015, Colorado State University
URL: http://hdl.handle.net/10217/166925
► Trace minerals have long been identified as essential components in the diets of domestic livestock species. The mechanisms underlying Cu, Zn, and Mn absorption are…
(more)
▼ Trace minerals have long been identified as essential components in the diets of domestic livestock species. The mechanisms underlying Cu, Zn, and Mn absorption are complex, but research has demonstrated interesting opportunities to optimize the involvement of trace minerals in ruminant nutrition. To further our understanding of absorption and retention of modern forms of trace minerals 4 experiments were conducted to examine in vitro and in vivo characteristics of Intellibond (IB) and sulfate forms of copper (Cu), zinc (Zn), and
manganese (Mn). In experiment 1, in vitro incubations were used to examine the effects of pH and mineral concentration and source (IB vs sulfate) on Cu, Zn, and Mn solubility. Solubility was measured at elemental concentrations ranging from 0.1 to 10.0 mg of product/ml (0.1, 1.0, and 10.0 mg/ml) at: 1) pH 5.5 (in McDougal's artificial saliva mixture 0.1 M NaHCO3-Na2HPO4KCl- MgSO4*7H2O-urea buffer) and 2) pH 2.0 (in McDougal's artificial saliva mixture 0.1 M NaHCO3-Na2HPO4KCl- MgSO4*7H2O-urea buffer). On average, the overall solubility of Cu, Zn, and Mn, from both trace mineral sources were similar at a pH 5.0 and 2.0. In Experiment 2 eight cross-bred steers were utilized to estimate the duodenal appearance of Cu, Zn, and Mn in steers post ruminal administration of IB and sulfate forms of Cu, Zn, and Mn in steers fed a corn silage and steam flaked corn-based diet. Treatments consisted of 1) 60 mg of Zn/kg DM from ZnSO4; 20 mg of Cu/kg DM from CuSO4; 40 mg of Mn/kg DM from MnSO4, and 2) 60 mg of Zn/kg DM from tetra-basic ZnCl; 20 mg of Cu/kg DM from tri-basic CuCl; 40 mg of Mn/kg DM from tri-basic MnCl. Individual trace mineral treatments were thoroughly mixed with 0.23 kg of ground corn and administered as a single dose via the rumen fistula. Rumen and duodenal samples were obtained at -4, -2, 0 h, pre dosing and at 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, and 42 h post dosing. Duodenal appearance of Cu, Mn, and Zn post ruminal administration of different trace mineral sources were similar across treatments. In experiment 3, eight cross-bred steers were utilized in a 19 d experiment to investigate the effects of trace mineral source on apparent absorption and retention of Cu, Zn, and Mn in steers fed a corn silage and steam flaked corn-based diet. Steers were blocked by BW and randomly assigned to one of the 2 treatments. Treatments consisted of: 1) 30 mg of Zn/kg DM from ZnSO4; 10 mg of Cu/kg DM from CuSO4; 20 mg of Mn/kg DM from MnSO4; and 2) 30 mg of Zn/kg DM from tetra-basic ZnCl; 10 mg of Cu/kg DM from tri-basic CuCl; 20 mg of Mn/kg DM from tri-basic MnCl. Total fecal and urine output was measured daily for all steers during the 5 d collection period. Dry matter disappearance, apparent absorption, and apparent retention of Cu, Zn, and Mn were similar across treatments. In experiment 4, four-hundred cross-bred steers (initial BW 335 ± 9.6 kg) were utilized to investigate the effects of supplemental Zn, Cu, and Mn concentration and source on…
Advisors/Committee Members: Engle, Terry E. (advisor), Wagner, John J. (committee member), Archibeque, Shawn L. (committee member), Rollin, Bernard (committee member).
Subjects/Keywords: cattle; manganese; beef; zinc; copper
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Caldera, E. (2015). Examining in vitro and in vivo characteristics of Intellibond and sulfate forms of copper, zinc, and manganese. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/166925
Chicago Manual of Style (16th Edition):
Caldera, Emmanuel. “Examining in vitro and in vivo characteristics of Intellibond and sulfate forms of copper, zinc, and manganese.” 2015. Doctoral Dissertation, Colorado State University. Accessed March 07, 2021.
http://hdl.handle.net/10217/166925.
MLA Handbook (7th Edition):
Caldera, Emmanuel. “Examining in vitro and in vivo characteristics of Intellibond and sulfate forms of copper, zinc, and manganese.” 2015. Web. 07 Mar 2021.
Vancouver:
Caldera E. Examining in vitro and in vivo characteristics of Intellibond and sulfate forms of copper, zinc, and manganese. [Internet] [Doctoral dissertation]. Colorado State University; 2015. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/10217/166925.
Council of Science Editors:
Caldera E. Examining in vitro and in vivo characteristics of Intellibond and sulfate forms of copper, zinc, and manganese. [Doctoral Dissertation]. Colorado State University; 2015. Available from: http://hdl.handle.net/10217/166925

Texas A&M University
26.
Lee, Bo Yeon.
Action of manganese on puberty.
Degree: PhD, Toxicology, 2007, Texas A&M University
URL: http://hdl.handle.net/1969.1/5871
► Manganese (Mn) is considered important for normal growth and reproduction. Because Mn can cross the blood brain barrier and accumulate in the hypothalamus, and because…
(more)
▼ Manganese (Mn) is considered important for normal growth and reproduction. Because Mn can cross the blood brain barrier and accumulate in the hypothalamus, and because it has been suggested that infants and children are potentially more sensitive to Mn than adults, we wanted to determine the effects of Mn exposure on puberty-related hormones and the onset of puberty, and discern the site and mechanism of Mn action. We demonstrated that the central administration of
manganese chloride (MnCl2) stimulated luteinizing hormone (LH) release in prepubertal rats. Incubation of medial basal hypothalamus (MBH) in vitro showed this effect was due to a Mn-induced stimulation of luteinizing hormone releasing hormone (LHRH). Further demonstration that this is a hypothalamic site of action was shown by in vivo blockade of LHRH receptors and the lack of a direct pituitary action of Mn to stimulate LH release in vitro. Chronic supplementation of low dose of MnCl2 caused elevated serum levels of LH, follicle stimulating hormone (FSH) and estradiol or testosterone. Importantly, Mn supplementation advanced the timing of puberty in both sexes. We investigated the mechanism by which Mn induces LHRH/LH release from the hypothalamus. Blocking the NMDA receptor, IGF1 receptor, or inhibiting nitric oxide synthase in vivo was ineffective in altering Mn-induced LH release. Dose-response, pharmacological blockade and nitrite assessments indicated that the lowest doses of Mn used stimulated LHRH release, but did not induce nitric oxide (NO) production, while only the highest dose of Mn stimulated NO. Conversely, a dose-dependent inhibition of Mn-induced LHRH release was observed in the presence of ODQ, a specific blocker of soluble guanylyl cyclase. Furthermore, Mn stimulated the release of cyclic GMP (cGMP) and LHRH from the same MBH, and a protein kinase G (PKG) inhibitor, KT5823, blocked Mn-induced LHRH release. Collectively, these data demonstrate that Mn can stimulate specific puberty-related hormones both acutely and chronically, and furthermore, suggest that low levels of Mn facilitate the normal onset of puberty. The principal action of Mn within the hypothalamus is to facilitate the activation of guanylyl cyclase, which subsequently stimulates the cGMP/PKG pathway resulting in the stimulation of prepubertal LHRH secretion.
Advisors/Committee Members: Dees, William Les (advisor), Bratton, Gerald R. (committee member), Porter, Weston William (committee member), Ramaiah, Shashi (committee member).
Subjects/Keywords: Manganese; Puberty
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lee, B. Y. (2007). Action of manganese on puberty. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/5871
Chicago Manual of Style (16th Edition):
Lee, Bo Yeon. “Action of manganese on puberty.” 2007. Doctoral Dissertation, Texas A&M University. Accessed March 07, 2021.
http://hdl.handle.net/1969.1/5871.
MLA Handbook (7th Edition):
Lee, Bo Yeon. “Action of manganese on puberty.” 2007. Web. 07 Mar 2021.
Vancouver:
Lee BY. Action of manganese on puberty. [Internet] [Doctoral dissertation]. Texas A&M University; 2007. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/1969.1/5871.
Council of Science Editors:
Lee BY. Action of manganese on puberty. [Doctoral Dissertation]. Texas A&M University; 2007. Available from: http://hdl.handle.net/1969.1/5871

University of Newcastle
27.
Bailey, Mark Robert.
Improving energy efficiency in the manganese dioxide cathode.
Degree: PhD, 2014, University of Newcastle
URL: http://hdl.handle.net/1959.13/1044991
► Research Doctorate - Doctor of Philosophy (PhD)
In this thesis the relationship between the physico-chemical properties of manganese dioxide and its electrochemical behaviour has been…
(more)
▼ Research Doctorate - Doctor of Philosophy (PhD)
In this thesis the relationship between the physico-chemical properties of manganese dioxide and its electrochemical behaviour has been investigated with the aim to improve the rechargeability of the alkaline Zn/MnO2 system. The project work was carried out in two broad areas, the first focusing on fundamental electrochemical and structural studies of γ-MnO2, and the second investigating the role of Ti(IV) and Ba(II) additives in improving cathode cyclability. The electrochemical and structural studies revealed that regardless of initial material properties, the capacity loss in γ-MnO2 during cycling can be primarily assigned to the lower potential (pyrolusite) region. To understand the underlying cause of this capacity loss, heat treatment of γ-MnO2 was used to prepare a structural series of material with increasing pyrolusite content. These studies revealed that heat treatment resulted in materials less able to accommodate proton insertion, with these materials expanding to a greater degree upon reduction and thus being more susceptible to mechanical breakdown. Electrochemical cycling revealed that as the pyrolusite content increases beyond 0.5, these changes act to destabilise the entire structure and result in material failure. The first section was brought to conclusion through the electrochemical characterisation of proton diffusion, calculated as A√D values, during the discharge and cycling of a standard γ-MnO2 material. This was achieved by the application of an appropriate model to the electrode response during step potential electrochemical spectroscopy (SPECS) and electrochemical impedance spectroscopy (EIS) experiments. By comparing the penetration depth of protons during these experiments with the nanostructure of the material, imaged via high-resolution transmission electron microscopy, it was shown that A√D values determined via SPECS represent the movement of protons through the bulk of the material, whereas EIS values focus on diffusion localised at the surface (penetrating <1 nm into the material). In this manner, each set of values provided key insights into different aspects of the material: the SPECS results suggestive of a reasonable degree of stability in the bulk of the material, and the EIS results indicative of significant degradation of the surface resulting from dissolution processes. The thesis then shifts its focus to understanding the role of Ti(IV) and Ba(II) additives in improving cathode cyclability. Electrochemical studies revealed that the inclusion of titanium dioxide improves electrode performance by lowering the resistance to charge transfer at the γ-MnO2 particle surface. A consideration of proton diffusivity in the presence of titanium dioxide indicated that Ti(IV) also becomes incorporated into the bulk γ-MnO2 structure upon cycling. The association of Ti(IV) with the particle surface and its incorporation into the bulk structure were confirmed through via imaging and depth profiling carried out using time-of-flight secondary…
Advisors/Committee Members: University of Newcastle. Faculty of Science & Information Technology, School of Environmental and Life Sciences.
Subjects/Keywords: electrochemistry; manganese dioxide; battery materials
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bailey, M. R. (2014). Improving energy efficiency in the manganese dioxide cathode. (Doctoral Dissertation). University of Newcastle. Retrieved from http://hdl.handle.net/1959.13/1044991
Chicago Manual of Style (16th Edition):
Bailey, Mark Robert. “Improving energy efficiency in the manganese dioxide cathode.” 2014. Doctoral Dissertation, University of Newcastle. Accessed March 07, 2021.
http://hdl.handle.net/1959.13/1044991.
MLA Handbook (7th Edition):
Bailey, Mark Robert. “Improving energy efficiency in the manganese dioxide cathode.” 2014. Web. 07 Mar 2021.
Vancouver:
Bailey MR. Improving energy efficiency in the manganese dioxide cathode. [Internet] [Doctoral dissertation]. University of Newcastle; 2014. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/1959.13/1044991.
Council of Science Editors:
Bailey MR. Improving energy efficiency in the manganese dioxide cathode. [Doctoral Dissertation]. University of Newcastle; 2014. Available from: http://hdl.handle.net/1959.13/1044991

University of Wollongong
28.
Hejazi, Daniel.
Effect of manganese content and microstructure
on the susceptibility of x70 pipeline steel to hydrogen
embrittlement.
Degree: Doctor of
Philosophy, 2014, University of Wollongong
URL: ;
https://ro.uow.edu.au/theses/4275
► A wide range of ferrite-based microstructures were produced for high strength pipeline steels with standard X70 (1.2 wt.%) and lowered MX70 (0.5wt.%) Mn content.…
(more)
▼ A wide range of
ferrite-based microstructures were produced for high
strength pipeline steels with standard X70 (1.2 wt.%) and
lowered MX70 (0.5wt.%) Mn content. These include
as-processed X70 and MX70 strips, as well as X70 transfer
bar in the asprocessed and normalised conditions. In
addition, simulated coarse grain heat affected zone
(CGHAZ) microstructures were produced. The main objective
of the research was to establish and rationalise the
differences in hydrogen pick-up and susceptibility to
hydrogen embrittlement (HE), both under three point
bending (TPB) of notched hydrogen-charged samples and
tensile testing of tubular samples pressurized with
hydrogen. A particular concern was whether the
susceptibility to hydrogen induced cracking (HIC) was
compromised by design of a lower Mn steel meeting X70
mechanical property specifications.
The effects of electrolytic hydrogen charging on
surface and internal damage, as well as fracture
toughness, were studied in relation to grain size,
microstructure, composition and the type and distribution
of non-metallic inclusions and precipitates. The X70
steel consistently exhibited higher
JQ fracture toughness values
(derived from TPB tests) than the MX70 strip, both before
and after hydrogen charging.
Electrolytic hydrogen charging experiments on
thin strip samples (about 1 mm thick) indicated that the
most rapid formation of surface blisters and HIC occurred
for the banded ferrite-pearlite microstructures of the
as-processed strip, followed by equiaxed TB
ferritepearlite microstructure in the normalised
condition, and then by the as-received TB sample with a
ferrite-bainite microstructure, no blistering was
observed in the heat affected zone (HAZ) samples for up
to 24 hours charging. In terms of
measured diffusible hydrogen content after charging, the
equiaxed (normalised) microstructure showed the lowest
diffusible hydrogen content, followed by the banded
ferrite-pearlite microstructures, the quasi-polygonal
ferrite with bainite microstructure and finally the HAZ
samples. In relation to residual hydrogen monitored after
its release from stronger traps, the HAZ microstructures
exhibited the lowest hydrogen content; followed by the
equiaxed (normalized TB) microstructure; the
quasi-polygonal ferrite and bainite microstructure of the
as-received TB; and the banded ferritepearlite
microstructures of the as-received strip
steels. HIC in these charged samples
often initiated from oxide particles and propagated
mainly along intragranular paths,…
Subjects/Keywords: pipeline; hydrogen; steel; manganese
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hejazi, D. (2014). Effect of manganese content and microstructure
on the susceptibility of x70 pipeline steel to hydrogen
embrittlement. (Doctoral Dissertation). University of Wollongong. Retrieved from ; https://ro.uow.edu.au/theses/4275
Chicago Manual of Style (16th Edition):
Hejazi, Daniel. “Effect of manganese content and microstructure
on the susceptibility of x70 pipeline steel to hydrogen
embrittlement.” 2014. Doctoral Dissertation, University of Wollongong. Accessed March 07, 2021.
; https://ro.uow.edu.au/theses/4275.
MLA Handbook (7th Edition):
Hejazi, Daniel. “Effect of manganese content and microstructure
on the susceptibility of x70 pipeline steel to hydrogen
embrittlement.” 2014. Web. 07 Mar 2021.
Vancouver:
Hejazi D. Effect of manganese content and microstructure
on the susceptibility of x70 pipeline steel to hydrogen
embrittlement. [Internet] [Doctoral dissertation]. University of Wollongong; 2014. [cited 2021 Mar 07].
Available from: ; https://ro.uow.edu.au/theses/4275.
Council of Science Editors:
Hejazi D. Effect of manganese content and microstructure
on the susceptibility of x70 pipeline steel to hydrogen
embrittlement. [Doctoral Dissertation]. University of Wollongong; 2014. Available from: ; https://ro.uow.edu.au/theses/4275

Oregon State University
29.
Glibert, Kenneth Malcolm.
Gamma- and beta-ray spectroscopy studies of the radioactive decay of Mn-51 to Cr-51.
Degree: PhD, Physics, 1965, Oregon State University
URL: http://hdl.handle.net/1957/47588
► The decay scheme of Mn⁵¹ has been investigated using gamma-ray and beta-ray scintillation spectrometers and a fast coincidence spectrometer. A half-life value of 46.5 ±…
(more)
▼ The decay scheme of Mn⁵¹ has been investigated using gamma-ray
and beta-ray scintillation spectrometers and a fast coincidence
spectrometer. A half-life value of 46.5 ± 0.2 minutes was determined
for Mn⁵¹ which decays predominantly to the ground state of
Cr⁵¹ by the emission of positons with an experimentally measured
end-point energy of 2.21 ± 0.02 MeV. Weak branching to the 761-keV and 1170-keV levels of Cr⁵¹, however, has been inferred from
the measured 761 ± 11-keV and 1170 ± 15-keV gamma-ray energies
observed in the Mn⁵¹ gamma-ray spectrum. Relative intensities for
these weak gamma-rays have been determined experimentally as
0.70 ± 0.10 and 0.48 ± 0.12 percent of the positons, respectively.
An 11 ± 1 nsec mean-life has been obtained for the 761-keV level of
Cr⁵¹ while an upper-limit of 1 nsec has been given to the 1170-keV
level. Using these experimental results coupled with theory, a spin
and parity assignment of [superscript 5⁻]/[subscript 2] was given to the ground state of Mn⁵¹, a spin assignment which is not in agreement with the 7-value expected
from the shell model prediction.
Advisors/Committee Members: Easterday, Harry T. (advisor).
Subjects/Keywords: Manganese – Spectra
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Glibert, K. M. (1965). Gamma- and beta-ray spectroscopy studies of the radioactive decay of Mn-51 to Cr-51. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/47588
Chicago Manual of Style (16th Edition):
Glibert, Kenneth Malcolm. “Gamma- and beta-ray spectroscopy studies of the radioactive decay of Mn-51 to Cr-51.” 1965. Doctoral Dissertation, Oregon State University. Accessed March 07, 2021.
http://hdl.handle.net/1957/47588.
MLA Handbook (7th Edition):
Glibert, Kenneth Malcolm. “Gamma- and beta-ray spectroscopy studies of the radioactive decay of Mn-51 to Cr-51.” 1965. Web. 07 Mar 2021.
Vancouver:
Glibert KM. Gamma- and beta-ray spectroscopy studies of the radioactive decay of Mn-51 to Cr-51. [Internet] [Doctoral dissertation]. Oregon State University; 1965. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/1957/47588.
Council of Science Editors:
Glibert KM. Gamma- and beta-ray spectroscopy studies of the radioactive decay of Mn-51 to Cr-51. [Doctoral Dissertation]. Oregon State University; 1965. Available from: http://hdl.handle.net/1957/47588

Oregon State University
30.
Yee, Kelsey L.
The role of manganese peroxidase in biomass conversion technologies.
Degree: PhD, Chemical Engineering, 2010, Oregon State University
URL: http://hdl.handle.net/1957/17700
► Currently, the technologies used to separate lignocellulosic biomass into its component parts (cellulose, hemicellulose, and lignin) and enzymatically hydrolyze the cellulose to glucose for conversion…
(more)
▼ Currently, the technologies used to separate lignocellulosic biomass into its
component parts (cellulose, hemicellulose, and lignin) and enzymatically hydrolyze
the cellulose to glucose for conversion to ethanol could be improved economically and
in terms of efficiency. A major impediment to utilizing the biomass is the presence of
residual lignin. The residual lignin "poisons" the cellulase enzymes and as a result, a
lower glucose yield is obtained. A higher titer of cellulases could be used to increase
the yield of glucose, but cellulases are expensive. A possibility to reduce the cost of
cellulase enzymes and improve the efficiency, economics, extent and/or rate of
hydrolysis is to use lignin-degrading fungal heme peroxidase such as
manganese
peroxidases.
An efficient and economical glucose assay was developed to monitor the rate
and extent of enzymatic hydrolysis of cellulose. The glucose assay is based on the
glucose oxidase horseradish peroxidase enzymatic method, but uses bulk enzymes
making it more economical than commercial kits. The glucose assay also has a higher
throughput rate and is more economical than HPLC.
In order to evaluate possible synergistic effects between cellulases and
manganese peroxidase (MnP), rMnP was produced in high cell density fed-batch
cultivations by the genetically engineered yeast, P. pastoris. In addition, a mathematic
model was developed to describe the temperature dependant growth of P. pastoris and
consumption of glucose and the production and temperature dependent degradation of
rMnP in the bioreactor broth. The model successfully predicted the cell growth,
substrate consumption, and rMnP production for the base case and also for cultivations
with varying fed-batch air flow rates (k[subscript L]a) and temperatures.
The production of rMnP requires cultures amended with exogenous heme and
there are several sources of heme. Through shake flask experiments and bioreactor
cultivations it was determined that 0.1 g/L of heme was necessary for producing high
titers of rMnP (4,500 U/L). It was also determined that not all types of heme will yield
the same rMnP titer.
The water soluble fraction post pretreatment of lignocellulosic biomass
contains inhibitors to fermentation such as 5-hydroxymethyl furfural (HMF) and
furfural. rMnP was shown to degrade HMF (1 g/L) and furfural (1 g/L) and detoxify
medium containing these inhibitors. The rMnP reduced furfural and HMF, measured
by absorbance at 276 and 286 nm respectively and the degree of absorbance decrease
was dependent on rMnP concentration. Furfural was more readily degraded by rMnP
than HMF. Growth assays using S. cerevisiae indicated rMnP treatment detoxified
medium containing furfural and HMF.
The optimal conditions (temperature, pH, and buffer) for enzyme activity were
determined for both AccelleraseTM 1000 (commercially available combination of
cellulases) and rMnP using filter paper as a substrate. Woody biomass and corn stover
were pretreated and then exposed to simultaneous or…
Advisors/Committee Members: Kelly, Christine J. (advisor), Lajoie, Curtis (committee member).
Subjects/Keywords: Manganese Peroxidase; Biomass conversion
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Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Yee, K. L. (2010). The role of manganese peroxidase in biomass conversion technologies. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/17700
Chicago Manual of Style (16th Edition):
Yee, Kelsey L. “The role of manganese peroxidase in biomass conversion technologies.” 2010. Doctoral Dissertation, Oregon State University. Accessed March 07, 2021.
http://hdl.handle.net/1957/17700.
MLA Handbook (7th Edition):
Yee, Kelsey L. “The role of manganese peroxidase in biomass conversion technologies.” 2010. Web. 07 Mar 2021.
Vancouver:
Yee KL. The role of manganese peroxidase in biomass conversion technologies. [Internet] [Doctoral dissertation]. Oregon State University; 2010. [cited 2021 Mar 07].
Available from: http://hdl.handle.net/1957/17700.
Council of Science Editors:
Yee KL. The role of manganese peroxidase in biomass conversion technologies. [Doctoral Dissertation]. Oregon State University; 2010. Available from: http://hdl.handle.net/1957/17700
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