Results 141 to 150 of about 35,099 (310)

Recent Advances in Bioconjugation of Aromatic Amino Acid Residues by a Reactivity‐Guided Approach

The Chemical Record, EarlyView.
This review highlights recent advances in the bioconjugation of aromatic amino acids residues, focusing on strategies that leverage their inherent chemical reactivity to enable precise and versatile modifications of biomacromolecules, illustrating relevant applications.
Bruno M. da S. Santos, Lívia C. R. M. da Frota, Thais G. Silva, Fernanda G. Finelli   +3 more
wiley   +1 more source

Electrochemical Comparative Study of Riboflavin, FMN and FAD Immobilized on the Silica Gel Modified with Zirconium Oxide

Journal of the Brazilian Chemical Society, 2002
Modified carbon paste electrodes were prepared by the adsorption of flavin on a silica gel modified with zirconium oxide (Si:Zr:flavin). The electrochemical behavior of immobilized riboflavin, FMN and FAD was investigated.
Yamashita Miyuki, Rosatto Simone S., Kubota Lauro T.   +2 more
doaj  

Enhanced Microbial Sensing via Resazurin Reduction Catalyzed by Graphene Oxide, A Versatile Approach for Diagnostics and Electrochemical Applications

Environmental Toxicology, EarlyView.
ABSTRACT Resazurin is a cell viability phenoxazine dye widely employed for bacterial monitoring, as its colorimetric and fluorometric conversion reflects microbial metabolic activity. In this work, we demonstrate that graphene oxide (GO), a two‐dimensional nanomaterial with high surface reactivity, markedly accelerates the reduction of resazurin in the
Valentina Palmieri, Marco de Spirito, Massimiliano Papi   +2 more
wiley   +1 more source

Shewanella secretes flavins that mediate extracellular electron transfer

Proceedings of the National Academy of Sciences of the United States of America, 2008
E. Marsili, Daniel B. Baron, Indraneel D Shikhare, Dan Coursolle, J. Gralnick, D. Bond   +5 more
semanticscholar   +1 more source

A topological exploration of convergence/divergence of human‐mediated and algorithmically mediated pedagogy

British Journal of Educational Technology, EarlyView.
We explore a topological model that situates teachers' agency as a constituent element within the convergent and divergent dynamics at the intersection of human‐mediated and algorithmically mediated pedagogies. Ubiquitous AI in education is designed to simulate, emulate and automate human processes and behaviours through datafication.
Keith Turvey, Norbert Pachler
wiley   +1 more source

Flavin nucleotides in human lens: Regional distribution in Brunescent cataracts

Indian Journal of Ophthalmology, 1998
The biochemical mechanism(s) underlying brunescent cataracts remain unclear. Oxidative stress due to reactive oxygen species may have a role in the pigmentation process in eye lens.
Bhat K, Nayak Sujatha
doaj  

Reduction of a-tocopherylquinone Model Compound With Various Reductant [PDF]

, 2001
In order to study the possibility of tranformation of a-tocopherylquinone (TQ) into a more oxidiseable compound and also to find out the recycling effect in the cells, an experiment was conducted by reducing the model compound 2-(3- hydroxy-3-methylbutyl)
Kohar, Indrajati
core  

D‐amino acid oxidase as a chemogenetic tool for spatiotemporally controlled hydrogen peroxide production: The oxygen connection

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose D‐amino acid oxidase (DAO) has been developed as a chemogenetic tool, to precisely manipulate redox levels in tissues and cells by generating H2O2 in the presence of D‐amino acids. The enzyme's significant oxygen consumption during H2O2 production may influence cellular oxygen levels.
Wiebke Maurer, Anke Zieseniss, Vamsi Priya Vikram, Yamin Chen, Laura Bauer, Annette Hillemann, Peter Rehling, Maithily S. Nanadikar, Diane de Zélicourt, Vartan Kurtcuoglu, Dörthe M. Katschinski   +10 more
wiley   +1 more source

Versatile roles of protein flavinylation in bacterial extracyotosolic electron transfer

mSystems
Bacteria perform diverse redox chemistries in the periplasm, cell wall, and extracellular space. Electron transfer for these extracytosolic activities is frequently mediated by proteins with covalently bound flavins, which are attached through post ...
Shuo Huang, Raphaël Méheust, Blanca Barquera, Samuel H. Light   +3 more
doaj   +1 more source

Non‐canonical PKG1 regulation in cardiovascular health and disease

British Journal of Pharmacology, EarlyView.
It is well established that the cyclic GMP‐dependent protein kinase I (PKG1) is canonically activated by cyclic guanosine monophosphate (cGMP), enabling its regulation of vascular tone, cardiac function and smooth muscle homeostasis. However, diverse non‐canonical stimuli of PKG1 have also been identified.
Jie Su, Joseph Robert Burgoyne
wiley   +1 more source