Results 51 to 60 of about 22,346 (250)
Annals of Mechnikov's Institute, 2020 This paper presents data on screening of antimicrobial properties of extracts from some kinds of raw materials (18 plants) with hydroquinone, naphtoquinone or anthraquinone derivatives. Some technological parameters of extracts (density and concentration
N Boyko, A Zaytsev, T Osolodchenko
doaj
Intramolecular Hydrogen Bond in Biologically Active o-Carbonyl Hydroquinones
Molecules, 2014 Intramolecular hydrogen bonds (IHBs) play a central role in the molecular structure, chemical reactivity and interactions of biologically active molecules.
Maximiliano Martínez-Cifuentes +3 more
doaj +1 more source
Journal of Chemistry, 2022 Oximes are known for their anti-inflammatory, antimicrobial, antioxidant, and anticancer activities. Frequently, modification of biologically active carbonyl compounds into oximes leads to increased activity. The present study reports the reactivity of 2-
Jaime A. Valderrama +6 more
doaj +1 more source
Antioxidant and Anti-Protease Activities of Diazepinomicin from the Sponge-Associated Micromonospora Strain RV115 [PDF]
, 2012 Diazepinomicin is a dibenzodiazepine alkaloid with an unusual structure among the known microbial metabolites discovered so far. Diazepinomicin was isolated from the marine sponge-associated strain Micromonospora sp.
Abdelmohsen, Usama Ramadan +6 more
core +2 more sources
Deciphering Small Molecule Diffusion Parameters Across Light Responsive Polymersome Membranes
Advanced Functional Materials, EarlyView.Light‐responsive polymersomes bearing donor–acceptor Stenhouse adducts (DASAs) enable programmable control over small‐molecule transport across synthetic membranes. By systematically varying DASA density, an optimal functionalization regime is identified that maximizes light‐gated permeability.
Farzina Matubbar +7 more
wiley +1 more source
Gold(I)-catalysed one-pot synthesis of chromans using allylic alcohols and phenols [PDF]
, 2013 A gold(I)-catalysed reaction of allylic alcohols and phenols produces chromans regioselectively via a one-pot Friedel–Crafts allylation/intramolecular hydroalkoxylation sequence.
Barker, Graeme +3 more
core +2 more sources
Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials
Advanced Materials, EarlyView.A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella +3 more
wiley +1 more source
A Study about Regioisomeric Hydroquinones with Multiple Intramolecular Hydrogen Bonding
Molecules, 2017 A theoretical exploration about hydrogen bonding in a series of synthetic regioisomeric antitumor tricyclic hydroquinones is presented. The stabilization energy for the intramolecular hydrogen bond (IHB) formation in four structurally different ...
Maximiliano Martínez-Cifuentes +4 more
doaj +1 more source
A Biochar‐Based Composite Hydrogel Microenvironment for Enhanced Biocatalysis
Advanced Materials, EarlyView.This work presents the synthesis of a polyacrylamide hydrogel wherein biomass‐derived biochar is co‐encapsulated with the enzyme horseradish peroxidase (HRP). The resulting composite hydrogel possesses balanced electron‐rich and electron‐deficient domains, creating an optimal microenvironment that concentrates both hydrogen peroxide and phenol ...
Shengzhe Wang +9 more
wiley +1 more source
A Non-Oxidative Approach toward Chemically and Electrochemically Functionalizing Si(111) [PDF]
, 2006 A general method for the non-oxidative functionalization of single-crystal silicon(111) surfaces is described. The silicon surface is fully acetylenylated using two-step chlorination/alkylation chemistry.
Agnew, Heather D. +4 more
core +1 more source