Results 61 to 70 of about 278,689 (355)

Correlations between experimental and theoretical adiabatic ionization energies for organic compounds and rate constants for atmospheric reactions with hydroxyl radicals [PDF]

, 2010
Adiabatic ionization energy (AIE) calculations were performed at the AM1, PM3, PM6, PDDG, HF/QZVP, and B3LYP/QZVP levels of theory on 722 atmospherically relevant organic compounds with available experimental rate constants for atmospheric reactions with
Kaya Forest, Sierra Rayne
core   +2 more sources

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source

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

International 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

Surface reactivity of amphibole asbestos. A comparison between crocidolite and tremolite [PDF]

, 2017
Among asbestos minerals, fibrous riebeckite (crocidolite) and tremolite share the amphibole structure but largely differ in terms of their iron content and oxidation state. In asbestos toxicology, iron-generated free radicals are largely held as one of
Andreozzi, Giovanni B., Corazzari, Ingrid, Pacella, Alessandro, Tomatis, Maura, Turci, Francesco   +4 more
core   +3 more sources

Establishing an assay to evaluate d‐amino acid oxidase enzyme kinetics and inhibition using WST‐8 redox dye

FEBS Open Bio, EarlyView.
This study investigated a novel WST‐8‐based assay for evaluating d‐Amino acid oxidase (DAO) inhibitors. We confirmed its effectiveness using known inhibitors and found that uremic toxins possess relatively weak inhibitory activity compared to existing drugs.
Kahoko Miyake, Yuki Enoki, Yuka Nakazawa, Kazuaki Taguchi, Kazuaki Matsumoto   +4 more
wiley   +1 more source

Re-assessing hydroxyl radical chemistry in the atmosphere: Instrument interferences may explain previous measurement discrepancies

Communications Earth & Environment
The hydroxyl radical controls the removal of many trace gases in the atmosphere and initiates the production of secondary pollutants such as ground-level ozone and secondary organic aerosols.
Paige Price, Brandon Bottorff, Jena Jenkins, William H. Brune, Philip S. Stevens   +4 more
doaj   +1 more source

Saturated laser fluorescence in turbulent sooting flames at high pressure [PDF]

, 1984
The primary objective was to develop a quantitative, single pulse, laser-saturated fluorescence (LSF) technique for measurement of radical species concentrations in practical flames.
Carter, C. D., King, G. B., Laurendeau, N. M.   +2 more
core   +1 more source

The chemistry of ultrasonic degradation of organic compounds [PDF]

, 2011
The destruction of toxic organic molecules using advanced oxidation processes (AOPs) is a potent tool for pollution control and environmental protection.
Bremner, David H., Burgess, Arthur E., Chand, Rashmi   +2 more
core   +3 more sources

In-vitro antioxidant and anti-inflamatory activities of Pituranthos chloranthus and Artemisia vulgaris from Tunisia [PDF]

, 2020
Pituranthos chloranthus and Artemisia vulgaris L. are two of the most important aromatic and medicinal species from the Apiaceae and Asteraceae families, respectively. They are traditionally used in certain pathologies in which inflammatory processes are
AAZZA, Smail, Ben Nasr, Soumeya, Miguel, Maria, Mnif, Wissem   +3 more
core   +1 more source

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

Advanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal, Andreas Brinkmann, Andreas Hartwig   +2 more
wiley   +1 more source