Results 1 to 10 of about 7,061 (174)

Microbially-mediated halogenation and dehalogenation cycling of organohalides in the ocean [PDF]

open access: yesNature Communications
Microbially mediated organohalide cycling in the ocean has profound implications for global biogeochemical cycles and climate, but the geographic distribution and diversity of the halogenation-dehalogenation cycling microorganisms remain unknown.
Na Zhou   +8 more
doaj   +2 more sources

Halogenation and Dehalogenation Potential of Microorganisms in Yangtze River Waters [PDF]

open access: yesMicroorganisms
The discharge of pollutants into rivers has been increasing with the rapid industrial development and extensive agricultural use of pesticides and herbicides. Halogenated organic compounds (HOCs) represent a significant class of environmental pollutants.
Zhixuan Wang   +3 more
doaj   +2 more sources

Aerobic oxidative bromination and iodination enabled by alloxan and ascorbic acid to mimic flavin-dependent halogenases [PDF]

open access: yesNature Communications
The fundamentally significant halogenation processes in organic synthesis heavily depend on the use of hazardous and toxic elemental halogens directly or indirectly, inevitably increasing environmental burden and leading to various production problems ...
Shiqi Zhang   +6 more
doaj   +2 more sources

Producing aryl halides from lignin [PDF]

open access: yesNature Communications
Lignin represents the most abundant biomass resource, which contains aromatic units. Lignin refinery is a promising, sustainable alternative for the production of aromatic chemicals.
Yongqian Liu   +9 more
doaj   +2 more sources

The Halogenation Effects of Electron Acceptor ITIC for Organic Photovoltaic Nano-Heterojunctions

open access: yesNanomaterials, 2021
Molecular engineering plays a critical role in the development of electron donor and acceptor materials for improving power conversion efficiency (PCE) of organic photovoltaics (OPVs). The halogenated acceptor materials in OPVs have shown high PCE. Here,
Yu Wang   +7 more
doaj   +1 more source

Halogenation of Peptides and Proteins Using Engineered Tryptophan Halogenase Enzymes

open access: yesBiomolecules, 2022
Halogenation of bioactive peptides via incorporation of non-natural amino acid derivatives during chemical synthesis is a common strategy to enhance functionality.
Barindra Sana   +6 more
doaj   +1 more source

Halogen–Halogen Nonbonded Interactions [PDF]

open access: yesACS Omega, 2021
Halogen-halogen nonbonded interactions were studied for methyl halides and phenyl halides using both B3LYP and MP2 along with 6-311+G* and aug-cc-pVTZ. With the methyl halides, the linear approach was found to lead to little stabilization, whereas the "90°" approach gave 1-2 kcal/mol. This modest stabilization was due to long-range electron correlation
openaire   +3 more sources

Indole and azaindole halogenation catalyzed by the RebH enzyme variant 3-LSR utilizing co-purified E. coli reductase

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Biocatalytic C-H halogenation is becoming increasingly attractive due to excellent catalyst-controlled selectivity and environmentally benign reaction conditions. Significant efforts have been made on enzymatic halogenation of industrial arenes in a cost-
Eunice Hui Yen Li   +6 more
doaj   +1 more source

Halogenation in Fungi: What Do We Know and What Remains to Be Discovered?

open access: yesMolecules, 2022
In nature, living organisms produce a wide variety of specialized metabolites to perform many biological functions. Among these specialized metabolites, some carry halogen atoms on their structure, which can modify their chemical characteristics ...
Bastien Cochereau   +4 more
doaj   +1 more source

Halogenation generates effective modulators of amyloid-Beta aggregation and neurotoxicity. [PDF]

open access: yesPLoS ONE, 2013
Halogenation of organic compounds plays diverse roles in biochemistry, including selective chemical modification of proteins and improved oral absorption/blood-brain barrier permeability of drug candidates.
H Edward Wong   +2 more
doaj   +1 more source

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