Results 21 to 30 of about 556,517 (293)

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

Microbiology 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

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

Antioxidants
Hydrogen sulfide (H2S) is a critical gasotransmitter that plays a dual role in physiological and pathological processes, particularly in the gastrointestinal tract.
Domenica Mallardi, Guglielmina Chimienti, Fatima Maqoud, Antonella Orlando, Simona Drago, Eleonora Malerba, Caterina De Virgilio, Hamid I. Akbarali, Francesco Russo   +8 more
doaj   +1 more source

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

Molecules, 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, E. Álvarez, M. A. Quezada, J. D. Carballeira   +3 more
doaj   +1 more source

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

Zhongguo 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

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Electrochemical data of ferrocenylsubphthalocyanine dyads

Data in Brief, 2020
The data presented in this paper is related to the research article entitled “Synthesis, Spectroscopy, Electrochemistry and DFT of Electron-Rich Ferrocenylsubphthalocyanines” [1] where electrochemical redox data and cyclic voltammograms at only a scan ...
Pieter J. Swarts, Jeanet Conradie
doaj   +1 more source

O2, pH, and redox potential microprofiles around Potamogeton malaianus measured using microsensors. [PDF]

PLoS ONE, 2014
This study aimed to elucidate the effects of periphyton on the microprofiles of oxygen (O2), pH, and oxidation-reduction potential around the stems and leaves of a submerged macrophyte Potamogeton malaianus and on the plant growth in the eutrophic ...
Bin Dong, Ruiming Han, Guoxiang Wang, Xun Cao   +3 more
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

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

Romanian 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, Bahaa Hadi Mohammed, Muhammed Mizher Radhi   +2 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source