Results 21 to 30 of about 577,887 (337)

Development and implementation of a case study assessment using biobased 5-hydroxymethylfurfural to teach redox reactions in undergraduate organic courses

open access: yesGreen Chemistry Letters and Reviews, 2023
This paper addresses the development and evaluation of a case study designed to introduce both the core chemistry concepts of oxidation and reduction reactions as well as green chemistry within the undergraduate organic chemistry curriculum.
Krystal Grieger, Alexey Leontyev
doaj   +1 more source

A Single Bacterium Capable of Oxidation and Reduction of Iron at Circumneutral pH

open access: yesMicrobiology Spectrum, 2021
Fe(II)-oxidizing microorganisms and Fe(III)-reducing microorganisms, which drive the biogeochemical Fe cycle on the Earth’s surface, are phylogenetically and ecologically diverse.
Shingo Kato, Moriya Ohkuma
doaj   +1 more source

Mechanistic Insights into the Hydrazine-induced Chemical Reduction Pathway of Graphene Oxide [PDF]

open access: yesarXiv, 2023
Hydrazine stands out as the most generally used chemical-reducing agent for reducing graphene oxide. Despite numerous experimental and theoretical investigations into the reduction reaction, the reduction mechanism remains unclear. In this study, we propose that, in aqueous hydrazine solutions, both hydrazine and hydroxide ions could initiate the ...
arxiv  

The Dual Role of Exogenous Hydrogen Sulfide (H2S) in Intestinal Barrier Mitochondrial Function: Insights into Cytoprotection and Cytotoxicity Under Non-Stressed Conditions

open access: yesAntioxidants
Hydrogen sulfide (H2S) is a critical gasotransmitter that plays a dual role in physiological and pathological processes, particularly in the gastrointestinal tract.
Domenica Mallardi   +8 more
doaj   +1 more source

Three-dimensional patterning of solid microstructures through laser reduction of colloidal graphene oxide in liquid-crystalline dispersions [PDF]

open access: yesNat. Commun. 6, 7157 (2015), 2016
Graphene materials and structures have become an essential part of modern electronics and photovoltaics. However, despite many production methods, applications of graphene-based structures are hindered by high costs, lack of scalability and limitations in spatial patterning.
arxiv   +1 more source

High Throughput Screening and QSAR-3D/CoMFA: Useful Tools to Design Predictive Models of Substrate Specificity for Biocatalystsâ€

open access: yesMolecules, 2004
After a hierarchical microbial screening process, new microorganisms have been discovered that act as biocatalysts for the stereoselective oxidation of secondary alcohols or for ketone reduction.
J. V. Sinisterra   +3 more
doaj   +1 more source

Application of oxidation-reduction potential in microbial fermentation [PDF]

open access: yesZhongguo niangzao
Oxidation-reduction potential (ORP), as a highly sensitive fermentation parameter that can monitor the fermentation status in real time, can be applied to fermentation by overcoming the limitations of the application of dissolved oxygen electrodes under ...
LI Zixiang, YI Dong, JIANG Shuiqin, CHEN Daijie, TAN Jun
doaj   +1 more source

Oxidative and anti-oxidative effect of anesthesia compounds (ketamine and xylazine) on the rabbit blood sample using electrochemical method [PDF]

open access: yesRomanian Journal of Neurology, 2020
Ketamine (KN) and xylazine (XZ) are one of the famous anesthesias using for the animal. The electrochemical properties of the KN and XZ compounds in the rabbit blood samples were studied by cyclic voltammetric (CV) technique using glassy carbon electrode
Dunya Ali Mustafa   +2 more
doaj   +1 more source

Oxygen Vacancies in Niobium Pentoxide as a Source of Two-Level System Losses in Superconducting Niobium [PDF]

open access: yes, 2021
We identify a major source of quantum decoherence in three-dimensional superconducting radio-frequency (SRF) resonators and two-dimensional transmon qubits composed of oxidized niobium: oxygen vacancies in the niobium pentoxide which drive two-level system (TLS) losses.
arxiv   +1 more source

Modeling of graphite oxide [PDF]

open access: yesJ. Am. Chem. Soc. 2008; 130(32); 10697-10701, 2008
Based on density functional calculations, optimized structures of graphite oxide are found for various coverage by oxygen and hydroxyl groups, as well as their ratio corresponding to the minimum of total energy. The model proposed describes well known experimental results.
arxiv   +1 more source

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