Results 51 to 60 of about 1,286,655 (192)

Emission of reactive oxygen species during degradation of iron gall ink [PDF]

open access: yes, 2010
Iron gall inks are characterised by high contents of acids and transition metals, promoting degradation of cellulose due to hydrolysis and oxidation, respectively. Their chemical interaction with the environment is not well understood, especially in view
Cassar, M.   +5 more
core  

Reactive oxygen species and sperm cells

open access: yesReproductive Biology and Endocrinology, 2004
There is a dynamic interplay between pro- and anti-oxidant substances in human ejaculate. Excessive reactive oxygen species (ROS) generation can overwhelm protective mechanism and initiate changes in lipid and/or protein layers of sperm plasma membranes.
Kurpisz Maciej, Sanocka Dorota
doaj   +1 more source

Microbial catalysis of the oxygen reduction reaction for microbial fuel cells: a review. [PDF]

open access: yes, 2012
The slow kinetics of the electrochemical oxygen reduction reaction (ORR) is a crucial bottleneck in the development of microbial fuel cells (MFCs). This article firstly gives an overview of the particular constraints imposed on ORR by MFC operating ...
Bergel, Alain   +2 more
core   +3 more sources

Antimicrobial Actions of Reactive Oxygen Species

open access: yesmBio, 2011
Everything should be as simple as it can be, but not simpler.—Attributed to Albert Einstein (1) IMPORTANCE Reactive oxygen species (ROS) are produced by host phagocytes and exert antimicrobial actions against a broad range of pathogens.
Ferric C. Fang
doaj   +1 more source

Fluorescent Detection of Reactive Oxygen Species in \u3cem\u3eSaccharomyces cerevisiae\u3c/em\u3e Applied to Chronological Lifespan [PDF]

open access: yes, 2019
During the course of normal aerobic metabolism, cells are exposed to a wide range of reactive oxygen species such as the superoxide anion, hydrogen peroxide, and the hydroxyl radical. These reactive oxygen species (ROS) are highly reactive metabolites of
Bestwick, Megan, Schultz, Kelly
core   +1 more source

Reactive oxygen species in iridium-based OER catalysts [PDF]

open access: yes, 2016
Tremendous effort has been devoted towards elucidating the fundamental reasons for the higher activity of hydrated amorphous IrIII/IV oxyhydroxides (IrOx) in the oxygen evolution reaction (OER) in comparison with their crystalline counterpart, rutile ...
Bernicke   +25 more
core   +3 more sources

Highly efficient optogenetic cell ablation in C. elegans using membrane-targeted miniSOG. [PDF]

open access: yes, 2016
The genetically encoded photosensitizer miniSOG (mini Singlet Oxygen Generator) can be used to kill cells in C. elegans. miniSOG generates the reactive oxygen species (ROS) singlet oxygen after illumination with blue light.
Chisholm, Andrew D, Xu, Suhong
core   +1 more source

The role of reactive oxygen species in the pathogenesis and treatment of endometrial cancer

open access: yesFrontiers in Medicine
Reactive oxygen species (ROS) play dual roles in the pathophysiology of endometrial cancer (EC). Oxidative stress induced by ROS can promote the survival and proliferation of cancer cells, whereas excessive accumulation of ROS can lead to various forms ...
Jeongmin Lee   +10 more
doaj   +1 more source

Total Thiols and MDA Levels in Patients with Acute Myocardial Infarction Before and After Reperfusion Therapy [PDF]

open access: yes, 2010
Background: Reactive oxygen species have been implicated in the pathogenesis of ischemic and reperfusion injury. In the current work we have measured malondialdehyde (MDA), total thiols, total CK, CK-MB and AST in ECG proven acute myocardial infarction ...
Babu, Suresh   +2 more
core   +1 more source

Imaging Reactive Oxygen Species in Arthritis

open access: yesMolecular Imaging, 2004
Reactive oxygen species (ROS) have been shown to play a role in the pathogenesis of arthritides. Luminol was used as the primary reporter of ROS and photons resulting from the chemiluminescence reaction were detected using a super-cooled CCD photon ...
Wei-Tsung Chen   +2 more
doaj   +1 more source

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