Results 51 to 60 of about 148,924 (212)

DPPH-Scavenging Activities and Structure-Activity Relationships of Phenolic Compounds

open access: yesNatural Product Communications, 2010
Thirty-eight phenolic compounds (including 31 flavonoids) were examined for their DPPH radical-scavenging activities, and structure-activity relationships were evaluated.
Cheng-Dong Zheng   +5 more
doaj   +1 more source

Spectrum of the hydroxyl radical [PDF]

open access: yesCanadian Journal of Physics, 1969
The B2Σ+ → A2Σ+ and C2Σ+ → A2Σ+ systems of OH and OD were photographed at high resolution. The apparent dissociation energy D0(A2Σ+) is calculated to be (18 847 ± 15) cm−1 for OH and (19 263 ± 15) cm−1 for OD. An upper limit to D0(X2Π3/2) of OH is deduced to be (35 420 ± 15) cm−1.
C. Carlone, F. W. Dalby
openaire   +1 more source

Formation of Hydroxyl Radical from the Photolysis of Salicylic Acid

open access: yes, 2011
Formation of Hydroxyl Radical from the Photolysis of Salicylic AcidPhotodissociation dynamics of salicylic acid (SA) in the gas phase at different photolysis wavelengths (266, 315-317 nm) is investigated by probing the nascent OH photoproduct employing ...
尹鸿鸣   +4 more
core   +1 more source

Finding and characterizing the complexes of drug like molecules with quadruplex DNA: combined use of an enhanced hydroxyl radical cleavage protocol and NMR.

open access: yesPLoS ONE, 2014
Structural information on the complexes of drug like molecules with quadruplex DNAs can aid the development of therapeutics and research tools that selectively target specific quadruplex DNAs.
Harikrushan Ranpura   +2 more
doaj   +1 more source

Representing Organic Compound Oxidation in Chemical Mechanisms for Policy-Relevant Air Quality Models under Background Troposphere Conditions

open access: yesAtmosphere, 2020
This intercomparison has taken thirteen chemical mechanisms and compared how they treat VOC oxidation and degradation and its relationship to the photochemical formation of ozone and hydroxyl radicals.
Richard G. Derwent
doaj   +1 more source

Antioxidant Activity In Vitro Guided Screening and Identification of Flavonoids Antioxidants in the Extract from Tetrastigma hemsleyanum Diels et Gilg

open access: yesInternational Journal of Analytical Chemistry, 2021
This study aimed to investigate the extract with high antioxidant activity of Tetrastigma hemsleyanum Diels et Gilg and identify the antioxidant components in vitro.
Li Ding, Xiaomin Zhang, Jiajia Zhang
doaj   +1 more source

Participation of hydroxyl radical in hydroxylation of pyridoxine by ascorbic acid.

open access: yesAgricultural and Biological Chemistry, 1988
and Fumio YagiLaboratory of Biochemistry and Nutritional Chemistry,Department of Agricultural Chemistry, Faculty ofAgriculture, Kagoshima University,Korimoto 1-21-24, Kagoshima 890, JapanReceived April 7, 1988Food storage, processing and cooking reduce the con-tent of biologically available vitamin B6 in foods.1 ~4) Themechanism of a loss of vitamin B6
TADERA, Kenjiro   +2 more
openaire   +2 more sources

Comparative action of hydroxyl radical scavengers on mercury chloride-induced haemolysis in human and sheep erytrhocytes

open access: yes, 1997
EI-Missiry M. A. & Ismail M. A. Biology Department, King Faisal University P.O. Box 1759, Al-Hassa. Saudi ArabiaHuman and sheep erythrocytes were treated with 0.05 mM mercuric chloride ill vitro in the presenceof two hydroxyl, (OH) radical scavengers ...
EI-Missiry M. A., Ismail M. A.
core  

Reaction of hydroxyl radical with aromatic hydrocarbons

open access: yes, 2012
Hydroxyl Radical (HO·) is a highly reactive radical species which is an important member of a class of chemical species known as Reactive Oxygen Species (ROS).
Benzinger, Stephen B.
core  

Hydroxyl Radical Dosimetry for High Flux Hydroxyl Radical Protein Footprinting Applications Using a Simple Optical Detection Method

open access: yes, 2015
Hydroxyl radical protein footprinting (HRPF) by fast photochemical oxidation of proteins (FPOP) is a powerful benchtop tool used to probe protein structure, interactions, and conformational changes in solution.
Boer Xie (1496494)   +1 more
core   +1 more source

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