Results 21 to 30 of about 1,043 (212)
Iraqi Journal of Pharmaceutical Sciences, 2017 Melatonin is a potent scavenger of reactive oxygen species or free radicals like superoxide and hydroxyl radicals. The oxidation of hemoglobin to methemoglobin (meth-Hb) by oxidizing compounds has been widely studied.
Saad A.Hussain +3 more
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Dissimilatory Nitrite and Nitric Oxide Reductases [PDF]
Chemical Reviews, 1996 The inorganic nitrogen cycle (Figure 1) consists of several linked biological processes and one abiological process, the reaction of N2 and O2 in lightning discharges and internal combustion engines to produce NOx and, ultimately, nitrate. All of the processes except nitrogen fixation involve reduction or oxidation of species containing N-O bonds of ...
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International Journal of Electrochemical Science, 2017 In this research, we introduced a powerful electrochemical sensor (based carbon paste electrode) for analysis of nitrite in foodstuff, using CdO decorated single wall carbon nanotube incorporated with 1-methyl-3-butylimidazolium bromide (CdO/SWCNTs/1-3 ...
Vinod Kumar Gupta +5 more
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International Journal of Electrochemical Science, 2017 An electrochemical sensing platform based on gold nanoparticles/polyrhodamine B/multi-walled carbon nanotubes composites modified glassy carbon electrode (AuNPs/PRhB/MWCNTs/GCE) was developed for the ultrasensitive determination of nitrite.
He Xu +3 more
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Evaluating nitrite oxidizing organism survival under different nitrite concentrations [PDF]
Water Science and Technology, 2020 Abstract The objective of this study is to explore the optimal pre-treatment procedures and statistics methods for live/dead bacterial staining using nitrite oxidizing organism (NOO) as the research aim. This staining method was developed and widely utilized to evaluate activated bacterial survival situation, because it is direct and ...
Bing, Liu +8 more
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Biosensors, 2021 Due to the great threat posed by excessive nitrite in food and drinking water to human health, it calls for developing reliable, convenient, and low-cost methods for nitrite detection.
Mengzhu Wang +4 more
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Nitrate Reduction to Nitrite, a Possible Source of Nitrite for Growth of Nitrite-Oxidizing Bacteria [PDF]
Applied and Environmental Microbiology, 1977 Growth yields and other parameters characterizing the kinetics of growth of nitrite-oxidizing bacteria are presented. These parameters were measured during laboratory enrichments of soil samples with added nitrite. They were then used to reanalyze data for nitrite oxidizer growth in a previously reported field study (M. G. Volz, L.
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Growth of nitrite-oxidizing bacteria by aerobic hydrogen oxidation [PDF]
Science, 2014 Oxidizing hydrogen in place of nitrite Microorganisms are important drivers of Earth's nitrogen cycle. Many of the organisms responsible for mediating the reactions of one phase of nitrogen to another are thought to be ecologic specialists. Using a combination of genomic and experimental analyses, Koch et al.
Koch, H. +12 more
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Nitrite influence on fish: a review
Veterinární Medicína, 2005 Nitrite is an intermediate in the oxidation of ammonium to nitrate. An elevated ambient nitrite concentration is a potential problem for freshwater fish since nitrite is actively taken up across the gills in competition with chloride.
H. Kroupova, J. Machova, Z. Svobodova
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International Journal of Electrochemical Science, 2019 In this study, a new hybrid PMA-MoS2-rGO composed of phosphomolybdic acid (PMA), MoS2, and reduced graphene oxide (rGO) was prepared for sensitive electrochemical detection of nitrite.
Hui Xu +5 more
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