Results 71 to 80 of about 20,444 (199)
Protein Adhesion on Atmospheric Plasma Deposited Quaternary Ammonium Salt Coatings
, 2013 This study investigates protein adhesion on nm thick helium atmospheric plasma deposited quaternary ammonium salt (QAS) coatings. The adhesion of the proteins BSA, IgG and Fg was evaluated on coated and uncoated silicon wafer substrates.
Dowling, Denis P., Donegan, Mick
core +1 more source
Titanium(IV) Chloride and Quaternary Ammonium Salt Promoted Baylis−Hillman Reaction
, 2016 The Baylis−Hillman reaction of aldehydes with α,β-unsaturated ketones can be drastically affected by the reaction temperature and Lewis bases. When the reaction was carried out at −78 °C using catalytic amounts of quaternary ammonium salts (R4N+X-, X ...
Yan-Shu Feng (3026223), Min Shi (141075)
core +2 more sources
Quaternary ammonium salt derivatives of allylphenols with peripheral analgesic effect
Memorias do Instituto Oswaldo Cruz, 1991 Ammonium salt derivatives of natural allylphenols were synthesized with the purpose of obtaining potential peripheral analgesics. These drugs, by virtue of their physicochemical properties, would not be able to cross the blood brain barrier.
A. B de Oliveira +3 more
doaj +1 more source
, 2016 A quaternary ammonium salt readily immobilized on a soluble poly(ethylene glycol) polymer support efficiently catalyzes different reactions carried out under phase-transfer catalysis conditions; the catalyst, easily recovered by precipitation and ...
Rita Annunziata (1570630) +4 more
core +1 more source
Indonesian Journal of Chemistry, 2010 The nucleophilic substitution reaction to quaternary Mannich base from vanillin has been investigated. Mannich reaction to vanillin was carried out by refluxing mixture of vanillin, formaldehyde and dimethyl amine.
Bambang Purwono +1 more
doaj +1 more source
, 2000 (matrix presented) A quaternary ammonium salt readily immobilized on a soluble poly(ethylene glycol) polymer support efficiently catalyzes different reactions carried out under phase-transfer catalysis conditions; the catalyst, easily recovered by ...
F. Cozzi +4 more
core +1 more source
Evaluation of antimicrobial effectiveness of new quaternary ammonium salt compounds [PDF]
, 2020 Author: Ondřej Suk Title: Evaluation of antimicrobial effectiveness of new quaternary ammonium salt compounds Diploma thesis Charles University in Prague, Faculty of Pharmacy in Hradec Králové Study program: Pharmacy Background: The aim of the work was ...
Suk, Ondřej
core
Journal of Materials Research and TechnologyTo improve the thermal barrier properties of epoxy resin coatings, a composite waterborne aerogel multifunctional coating that possesses both mechanical properties and controllable barrier ability was prepared in this study.
Yu-Wei Liu +4 more
doaj +1 more source
Preparation and Characterization of Two New Kinds of Soluble Quaternary Ammonium Salts of Chitosan
, 2011 Schiff base of chitosan was obtained by the reaction of chitosan and aromatic aldehyde, and then Schiff base of chitosan reacted with methyl iodide to get soluble quaternary ammonium salts of chitosan which were N-metoxybenzenemethyl quaternary ammonium ...
Li Ju Tan, He Dong Wang, Jiang Tao Wang
core +1 more source
Separação e identificação de constituintes químicos polares dos galhos de Porcelia Macrocarpa
Química Nova, 2000 This paper describes a methodology to separate and identify polar compounds as flavonoid and lignan glucosides, amino acids, salt of quaternary ammonium amino acid and carbohydrates from branches of Porcelia macrocarpa (Annonaceae).
Chaves Mariana H. +3 more
doaj