Results 61 to 70 of about 83,987 (180)

Two distinct enzyme systems are responsible for tetrachloroethene and chlorophenol reductive dehalogenation in Desulfitobacterium strain PCE1

, 2001
Desulfitobacterium strain PCE1 is able to use tetrachloroethene and chloroaromatics as terminal electron acceptors for growth. Cell extracts of Desulfitobacterium strain PCE1 grown with tetrachloroethene as electron acceptor showed no dehalogenase ...
Pas, B.A., van de, Vos, W.M., de, Stams, A.J.M., Schraa, G., Gerritse, J.   +4 more
core   +1 more source

Contrasting Kinetics of Highly Similar Chloroalkane Reductive Dehalogenases

Environmental Science & Technology
ABSTRACT Chloroform and trichloroethanes are pervasive groundwater contaminants for which bioremediation has been an effective treatment strategy. Reductive dehalogenase (RDase) enzymes from organohalide-respiring bacteria are essential for their remediation under anaerobic conditions.
Katherine J. Picott, Elizabeth A. Edwards   +1 more
openaire   +2 more sources

Dietary Artificial Sweeteners: From Chemical Transformation in Food to Gut Microbial Processing

ChemFoodChem, EarlyView.
This review article unites classical and recent findings on the stability of artificial sweeteners in food. The focus is on ten sweeteners approved in the European Union: their chemical stability during processing and storage, individual degradation products, and their interactions with the intestinal microbiota.
Jürgen Lassak, Michael Hellwig
wiley   +1 more source

Merging Biocatalysis and Chemocatalysis in Flow: State‐of‐the‐Art and Future Directions for Sustainable Synthesis

Angewandte Chemie, Volume 138, Issue 25, 15 June 2026.
This review highlights recent advances in integrating biocatalysis and chemocatalysis in continuous flow to create streamlined, sustainable processes. It examines chemo‐enzymatic cascades combining at least one enzymatic and one chemical step, discusses challenges such as enzyme immobilization, leaching, and reactor clogging, and presents solutions ...
Petros Siasiaridis, Matteo Damian, Francesco G. Mutti   +2 more
wiley   +2 more sources

Addition of Shewanella oneidensis MR-1 to the Dehalococcoides-containing culture enhances the trichloroethene dechlorination

Environment International, 2019
Dehalococcoides is able to completely dehalogenate tetrachloroethene (PCE) and trichloroethene (TCE) to ethene (ETH). However, the dechlorination efficiency of Dehalococcoides is low and result in the accumulation of toxic intermediates.
Yaru Li, Li-Lian Wen, He-Ping Zhao, Lizhong Zhu   +3 more
doaj   +1 more source

Mesenchymal stem cells as cellular factories for targeted P2X7 blockade after traumatic brain injury

Neuroprotection, EarlyView.
This manuscript presents a novel therapeutic strategy using mesenchymal stem cells (MSCs) engineered as living drug factories to deliver a P2X7‐blocking nanobody for treatment of ischemic stroke. By combining targeted cellular delivery with sustained local immunomodulation, the approach aims to overcome key limitations of systemic biologic ...
Lucia Fadon‐Padilla, Chengyan Chu, Lorissa McDougall, Yajie Liang, Chinmoy Sarkar, Marta Lipinski, Tim Magnus, Miroslaw Janowski, Piotr Walczak   +8 more
wiley   +1 more source

Photocatalytic and Biotechnological Strategies for Remediation of Persistent Organic Pollutants: Mechanisms, Toxicity, and Antimicrobial Perspectives

Environmental Toxicology, EarlyView.
ABSTRACT Persistent organic pollutants (POPs) pose significant ecological and human health risks due to their persistence, bioaccumulation, toxicity, and global distribution. Conventional remediation methods are often inadequate for achieving complete mineralization, demonstrating the need for advanced and substantial approaches.
Viola O. Okechukwu, Patrick B. Njobeh, Jonathan O. Okonkwo   +2 more
wiley   +1 more source

Metagenomic- and Cultivation-Based Exploration of Anaerobic Chloroform Biotransformation in Hypersaline Sediments as Natural Source of Chloromethanes

Microorganisms, 2020
Chloroform (CF) is an environmental contaminant that can be naturally formed in various environments ranging from forest soils to salt lakes. Here we investigated CF removal potential in sediments obtained from hypersaline lakes in Western Australia ...
Peng Peng, Yue Lu, Tom N.P. Bosma, Ivonne Nijenhuis, Bart Nijsse, Sudarshan A. Shetty, Alexander Ruecker, Alexander Umanets, Javier Ramiro-Garcia, Andreas Kappler, Detmer Sipkema, Hauke Smidt, Siavash Atashgahi   +12 more
doaj   +1 more source

Molecular dynamics simulations and fluorescence spectroscopy suggest reduced tryptophan‐to‐heme energy transfer facilitates lignin degradation in ClassII peroxidases

The FEBS Journal, EarlyView.
In lignin peroxidase and versatile peroxidase, low FRET from buried Trp to heme promotes long‐range electron transfer (LRET) from substrate to heme. This efficient electron flow is facilitated by reduced FRET competition. This mechanism likely evolved to enable the effective degradation of bulky, high‐redox‐potential lignin that cannot reach the enzyme'
Yi Ren, Dale Ang, Haluk Ertan, Anne Poljak, Janice R. Aldrich‐Wright, Wallace J. Bridge, Khawar Sohail Siddiqui   +6 more
wiley   +1 more source

Indications for acquisition of reductive dehalogenase genes through horizontal gene transfer by Dehalococcoides ethenogenes strain 195

, 2005
The genome of Dehalococcoides ethenogenes strain 195, an anaerobic dehalorespiring bacterium, contains 18 copies of putative reductive dehalogenase genes, including the well-characterized tceA gene, whose gene product functions as the key enzyme in the ...
Regeard, C., Deschavanne, P., Maillard, J., Holliger, C., Dufraigne, C., Holliger, Christof, Regeard C, Maillard, Julien, Deschavanne P, Holliger C, Maillard J, Dufraigne, Christine, Regeard, Christophe, Dufraigne C, Deschavanne, Patrick   +14 more
core   +1 more source