Results 131 to 140 of about 629,880 (409)
Nature Communications, 2018 Classic nucleophilic substitution reactions (SN1 and SN2) are not generally amenable to the enantioselective variants that use simple and racemic alkyl halide electrophiles.
Jiangtao Li +5 more
semanticscholar +1 more source
Advanced Healthcare Materials, EarlyView.Efflux‐mediated resistance compromises antibiotic efficacy, yet rapid detection remains elusive. This study presents a novel phenazinium‐based diagnostic molecule for quantifying bacterial efflux levels in Gram‐positive pathogens. The optimized compound enables precise, real‐time efflux assessment using fluorescence and colorimetric techniques ...
Mrunal Patil +15 more
wiley +1 more source
Ecotoxicology and Environmental Safety, 2021 Alkyl-PAHs are the predominant form of PAHs in crude oils which are supposed to demonstrate different toxicities compared to non-alkyl PAHs. Little information is available about the toxicity of alkyl-PAHs on marine Artemia.
Yi Cong +6 more
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Surface Structure of Organoclays [PDF]
arXiv, 2003 The properties of organically modified clay minerals determine essentially the quality of polymer-clay nanocomposites. We investigate alkylammonium-micas with different alkyl chain length by molecular dynamics simulation as homogeneous mixtures and separated island structures on the mica surface (80 percent alkali exchange, 20 percent of the alkali ...
arxiv
Nickel-catalyzed reductive thiolation and selenylation of unactivated alkyl bromides
Nature Communications, 2018 Chalcogen-containing compounds have received considerable attention because of their manifold applications in agrochemicals, pharmaceuticals, and material science.
Yi Fang +4 more
semanticscholar +1 more source
Advanced Healthcare Materials, EarlyView.Segmented PCL‐bisurea (BU) polymers and BU‐peptide conjugate additives assemble into fibrous superstructures at the nanoscale through a mix‐and‐matching strategy. Different bioactivities are incorporated through variation of peptide sequences. The resulting materials are screened for their effect on stem cell adhesion and pluripotency.
Johnick F. van Sprang +6 more
wiley +1 more source
Advanced ScienceEnantioenriched unsymmetric dialkyl carbinol derivatives are of importance in natural products, bioactive molecules, and functional organic materials. However, the catalytic asymmetric synthesis of dialkyl carbinol derivatives remains challenging due to ...
Quan‐Xing Zi, Wei Shu
doaj +1 more source
Heck Reaction of Electronically Diverse Tertiary Alkyl Halides.
Organic Letters, 2018 The efficient Pd-catalyzed Heck reaction of diverse tertiary alkyl halides with alkenes has been developed. Unactivated tertiary alkyl halides efficiently react at room temperature under visible light irradiation with no exogenous photosensitizers ...
D. Kurandina +3 more
semanticscholar +1 more source
Advanced Healthcare Materials, EarlyView.A new dual‐layer hydrogel barrier for preventing postoperative abdominal adhesions is developed. The inner layer, consisting of polyethyleneimine (PEI) and thioctic acid (TA), enhanced adhesion to moist tissues. The outer layer combines zwitterionic, thermoresponsive hyaluronic acid with anti‐inflammatory epigallocatechin gallate (EGCG) and forms a ...
Mena Asha Krishnan +6 more
wiley +1 more source
Journal of Lipid Research, 1969 A homologous series (C10, C12, C14, C16, C18) of synthetic O-alkyl and S-alkyl ethers of glycerol was analyzed by gas-liquid chromatography (GLC) and thin-layer chromatography (TLC), and examined by IR and n.m.r.
Randall Wood +2 more
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