Superoxide Dismutases and Superoxide Reductases

Chemical Reviews, Journal Year: 2014, Volume and Issue: 114(7), P. 3854 - 3918

Published: April 1, 2014

ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTSuperoxide Dismutases and Superoxide ReductasesYuewei Sheng†, Isabel A. Abreu*‡§, Diane E. Cabelli*∥, Michael J. Maroney*⊥, Anne-Frances Miller*#, Miguel Teixeira*‡, Joan Selverstone Valentine*†∇View Author Information† Department of Chemistry Biochemistry, University California Los Angeles, 90095, United States‡ Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova Lisboa, Av. da República, 2780-157, Oeiras, Portugal§ Biologia Experimental Tecnológica, Qta. do Marquês, Estação Agronómica Nacional, Edificio IBET/ITQB, Portugal∥ Department, Brookhaven National Laboratory, Upton, New York 11973, States⊥ Chemistry, Massachusetts Amherst, 01003, States# Kentucky, Lexington, Kentucky 40506-0055, States∇ Bioinspired Sciences, Ewha Womans University, Seoul 120-750, Republic Korea*E-mail: [email protected]*E-mail: protected]Cite this: Chem. Rev. 2014, 114, 7, 3854–3918Publication Date (Web):April 1, 2014Publication History Received24 September 2013Published online1 April 2014Published inissue 9 2014https://doi.org/10.1021/cr4005296Copyright © 2014 American Chemical SocietyRIGHTS & PERMISSIONSACS AuthorChoiceArticle Views20491Altmetric-Citations581LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum full text article downloads since November 2008 (both PDF HTML) across all institutions individuals. These metrics regularly updated to reflect usage leading up last few days.Citations number other articles citing this article, calculated by Crossref daily. Find more information about citation counts.The Altmetric Attention Score is a quantitative measure attention that research has received online. Clicking on donut icon will load page at altmetric.com with additional details score social media presence for given article. how calculated. Share Add toView InAdd Full Text ReferenceAdd Description ExportRISCitationCitation abstractCitation referencesMore Options onFacebookTwitterWechatLinked InReddit (31 MB) Get e-AlertsSUBJECTS:Ligands,Metals,Monomers,Peptides proteins,Redox reactions e-Alerts

Language: Английский

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The interplay of microbially mediated and abiotic reactions in the biogeochemical Fe cycle

Nature Reviews Microbiology, Journal Year: 2014, Volume and Issue: 12(12), P. 797 - 808

Published: Oct. 20, 2014

Language: Английский

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An evolving view on biogeochemical cycling of iron

Nature Reviews Microbiology, Journal Year: 2021, Volume and Issue: 19(6), P. 360 - 374

Published: Feb. 1, 2021

Language: Английский

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Generation mechanism of hydroxyl radical species and its lifetime prediction during the plasma-initiated ultraviolet (UV) photolysis

Scientific Reports, Journal Year: 2015, Volume and Issue: 5(1)

Published: March 20, 2015

Abstract Through this work, we have elucidated the mechanism of hydroxyl radicals (OH • ) generation and its life time measurements in biosolution. We observed that plasma-initiated ultraviolet (UV) photolysis were responsible for continues OH species, resulted to be major reactive species (RS) solution. The density lifetime acted inversely proportional each other with increasing depth inside cause increased solution is predicted using theoretical semiempirical calculations. Further, predict conversion hydroxide ion − or H 2 O (hydrogen peroxide) electron, determined current different pH. Additionally, investigated critical criterion interaction on cancer cell inducing apoptosis under effective exposure time. These studies are innovative field plasma chemistry medicine.

Language: Английский

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Indirect Photochemistry in Sunlit Surface Waters: Photoinduced Production of Reactive Transient Species

Chemistry - A European Journal, Journal Year: 2014, Volume and Issue: 20(34), P. 10590 - 10606

Published: May 30, 2014

Abstract This paper gives an overview of the main reactive transient species that are produced in surface waters by sunlight illumination photoactive molecules (photosensitizers), such as nitrate, nitrite, and chromophoric dissolved organic matter (CDOM). The transients ( . OH, CO 3 −. , 1 O 2 CDOM triplet states) involved indirect phototransformation a very wide range persistent pollutants waters.

Language: Английский

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Production of Abundant Hydroxyl Radicals from Oxygenation of Subsurface Sediments

Environmental Science & Technology, Journal Year: 2015, Volume and Issue: 50(1), P. 214 - 221

Published: Dec. 7, 2015

Hydroxyl radicals (•OH) play a crucial role in the fate of redox-active substances environment. Studies •OH production nature has been constrained to surface environments exposed light irradiation, but is overlooked subsurface under dark. Results this study demonstrate that abundant produced when sediments are oxygenated fluctuating redox conditions at neutral pH values. The cumulative concentrations within 24 h upon oxygenation 33 sampled from different 2–670 μmol per kg dry sediment or 6.7–2521 μM pore water. Fe(II)-containing minerals, particularly phyllosilicates, predominant contributor production. This could be sustainable Fe(II) regenerated by biological reduction Fe(III) during cycles. Production further evident field injection-extraction test through injecting water into 23-m depth aquifer. can oxidize pollutants such as arsenic and tetracycline contribute CO2 emissions levels comparable with soil respiration. These findings indicate an important source not previously identified, •OH-mediated oxidation represents process for substance transformations oxic/anoxic interface.

Language: Английский

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The importance of charge-transfer interactions in determining chromophoric dissolved organic matter (CDOM) optical and photochemical properties

Environmental Science Processes & Impacts, Journal Year: 2014, Volume and Issue: 16(4), P. 654 - 671

Published: Jan. 1, 2014

Absorption of sunlight by chromophoric dissolved natural organic matter (CDOM) is environmentally significant because it controls photic zone depth and causes photochemistry that affects elemental cycling contaminant fate. Both the optics (absorbance fluorescence) CDOM display unusual properties cannot easily be ascribed to a superposition individual chromophores. These include (i) broad, unstructured absorbance decreases monotonically well into visible near IR, (ii) fluorescence emission spectra all fall single envelope regardless excitation wavelength, (iii) photobleaching photochemical quantum yields decrease with increasing wavelength. In contrast simple model, these phenomena others can reasonably explained physical model in which charge-transfer interactions between electron donating accepting chromophores within control optical photophysical properties. This review summarizes current understanding processes underlying photophysics as their basis.

Language: Английский

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Long-term litter decomposition controlled by manganese redox cycling

Proceedings of the National Academy of Sciences, Journal Year: 2015, Volume and Issue: 112(38)

Published: Sept. 8, 2015

Significance The rate-controlling mechanisms of litter decomposition are fundamental importance for ecosystem nutrient cycling, productivity, and net carbon (C) balance. Current C cycling models rely primarily on climatic factors lignin content as the main predictors rates. Here, we show how ability integrated plant–soil system to promote active redox manganese (Mn) regulates decomposition. Our work suggests that incorporating coupling other elemental cycles, such Mn cycle, into conceptual numerical may significantly improve our mechanistic understanding predictions in terrestrial ecosystems.

Language: Английский

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Fenton chemistry and reactive oxygen species in soil: Abiotic mechanisms of biotic processes, controls and consequences for carbon and nutrient cycling

Earth-Science Reviews, Journal Year: 2021, Volume and Issue: 214, P. 103525 - 103525

Published: Jan. 17, 2021

Language: Английский

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Enigmatic persistence of dissolved organic matter in the ocean

Nature Reviews Earth & Environment, Journal Year: 2021, Volume and Issue: 2(8), P. 570 - 583

Published: June 30, 2021

Language: Английский

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