Results 101 to 110 of about 8,405 (234)

Radical-mediated ring contraction in the biosynthesis of 7-deazapurines [PDF]

open access: yes, 2015
Pyrrolopyrimidine containing natural products are widely distributed in Nature. The biosynthesis of the 7-deazapurine moiety that is common to all pyrrolopyrimidines entails multiple steps, one of which is a complex radical-mediated ring contraction ...
Bandarian, Vahe, Drennan, Catherine L.
core   +1 more source

Sol-Gel Heterogeneization of an Ir(III) Complex for Sustainable Visible-Light Redox Photocatalysis

open access: yesMolecules
Photocatalysis is a key strategy for the development of sustainable solar-driven chemical processes. In this work, we report the synthesis and characterization of a novel organometallo–ionosilica material derived from the self-condensation of an ...
Janira Herce   +4 more
doaj   +1 more source

A Coupled Adsorption–Biodegradation (CAB) Process Employing a Polyhydroxybutyrate (PHB)–Biochar Mini Pilot-Scale Reactor for Trichloroethylene-Contaminated Groundwater Remediation

open access: yesBioengineering
Actions for improving water quality are critical and include the remediation of polluted groundwater. The effectiveness of the remediation strategy to remove contamination by chlorinated solvents may be increased by combining physicochemical treatments ...
Laura Lorini   +5 more
doaj   +1 more source

Mechanisms of bacterially catalyzed reductive dehalogenation [PDF]

open access: yes, 1992
Nine bacteria were tested for the ability to dehalogenate tetrachloromethane (CT), tetrachloroethene (PCE), and 1, 1, 1-trichloroethane (TCA) under anaerobic conditions. Three bacteria were able to reductively dehalogenate CT. Dehalogenation ability was not readily linked to a common metabolism or changes in culture redox potential.
openaire   +1 more source

Benzoate-driven dehalogenation of chlorinated ethenes in microbial cultures from a contaminated aquifer [PDF]

open access: yes, 2018
Microbial dehalogenation of tetrachloroethene (PCE) and cis-dichloroethene (cis-DCE) was studied in cultures from a continuous stirred tank reactor initially inoculated with aquifer material from a PCE-contaminated site.
Bunge, Michael   +6 more
core  

Reductive Transformations of Anthropogenic Chemicals in Natural and Technical Systems

open access: yesCHIMIA, 1997
Reductive transformation reactions of chemical pollutants (e.g., polyhalogenated hydrocarbons, aromatic azo and nitro compounds, chromium(VI) species) in the environment are important both from an ecotoxicological and from an environmental ...
René P. Schwarzenbach   +4 more
doaj  

Effect of temperature on microbial reductive dehalogenation of chlorinated ethenes: a review [PDF]

open access: bronze, 2022
Mohammad Sufian Bin Hudari   +3 more
openalex   +1 more source

Modulating Iron Crystals with Lattice Chalcophile‐Siderophile Elements for Selective Dechlorinations Over Hydrogen Evolution

open access: yesAdvanced Science
Selective dechlorination of organic chlorides over hydrogen evolution reaction (HER) remains a challenge because of their coincidence. Nanoscale zerovalent iron (nFe0) draws a promising picture of in situ groundwater dechlorination, but its ...
Xiaohong Hu   +10 more
doaj   +1 more source

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