Results 21 to 30 of about 78,150 (329)

quaternary ammonium compounds

, 2014
Citation: 'quaternary ammonium compounds' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.Q05003 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms ...
Lennart Kaj, Petra Wallberg, Eva Brorström-Lundén   +2 more
openaire   +3 more sources

Crystal structures of bacterial small multidrug resistance transporter EmrE in complex with structurally diverse substrates

eLife, 2022
Proteins from the bacterial small multidrug resistance (SMR) family are proton-coupled exporters of diverse antiseptics and antimicrobials, including polyaromatic cations and quaternary ammonium compounds.
Ali A Kermani, Olive E Burata, B Ben Koff, Akiko Koide, Shohei Koide, Randy B Stockbridge   +5 more
doaj   +1 more source

Bacterial metabolism of quaternary ammonium compounds [PDF]

Applied and Environmental Microbiology, 1977
Of 10 quaternary ammonium compounds tested for biodegradation by the biological oxygen demand technique, only decyl- and hexadecyltrimethylammonium bromides were decomposed by organisms derived from sewage and soil. A mixture consisting of individual strains of Pseudomonas and Xanthomonas grew in solutions containing decyltrimethylammonium bromide as ...
D, Dean-Raymond, M, Alexander
openaire   +2 more sources

Synthesis of Novel Quaternary Ammonium Salts and Their in Vitro Antileishmanial Activity and U-937 Cell Cytotoxicity

Molecules, 2016
This work describes the synthesis of a series of quaternary ammonium salts and the assessment of their in vitro antileishmanial activity and cytotoxicity.
Sandra M. Duque-Benítez, Luz Amalia Ríos-Vásquez, Rogelio Ocampo-Cardona, David L. Cedeño, Marjorie A. Jones, Iván D. Vélez, Sara M. Robledo   +6 more
doaj   +1 more source

Synthesis and Correlation of Aggregation and Antimicrobial Properties of Homochiral Quaternary Ammonium Bromides Derived from Camphoric Acid

European Pharmaceutical Journal, 2021
A group of homochiral quaternary ammonium salts bearing hydrophobic camphoric acid-derived moiety was synthesized and characterized. The aggregation properties of the prepared compounds were evaluated by surface tension measurements, and the critical ...
Mikláš R., Miklášová N., Bukovský M.   +2 more
doaj   +1 more source

Reaction of N,N-Dimethyltryptamine with Dichloromethane Under Common Experimental Conditions. [PDF]

, 2018
A large number of clinically used drugs and experimental pharmaceuticals possess the N,N-dimethyltryptamine (DMT) structural core. Previous reports have described the reaction of this motif with dichloromethane (DCM), a common laboratory solvent used ...
Dunlap, Lee E, Olson, David E
core   +3 more sources

Novel Bis-Ammonium Salts of Pyridoxine: Synthesis and Antimicrobial Properties

Molecules, 2020
A series of 108 novel quaternary bis-ammonium pyridoxine derivatives carrying various substituents at the quaternary nitrogen’s and acetal carbon was synthesized.
Nikita V. Shtyrlin, Mikhail V. Pugachev, Sergey V. Sapozhnikov, Marsel R. Garipov, Rusalia M. Vafina, Denis Y. Grishaev, Roman S. Pavelyev, Renata R. Kazakova, Mariya N. Agafonova, Alfiya G. Iksanova, Svetlana A. Lisovskaya, Marina I. Zeldi, Elena S. Krylova, Elena V. Nikitina, Alina E. Sabirova, Airat R. Kayumov, Yurii G. Shtyrlin   +16 more
doaj   +1 more source

Dual antibacterial effect of immobilized quaternary ammonium and aliphatic groups on PVC [PDF]

, 2015
A coating comprising quaternary ammonium salts (QAS) and aliphatic moieties was formed on the poly(vinyl chloride) (PVC) surface in order to confer antibacterial activity. This was achieved by grafting mercaptopropyltrimethoxysilane onto PVC, followed by
Copello, Guillermo Javier, González, Joaquín Antonio, Salinas, Ana, Teves, Sergio, Villanueva, María Emilia   +4 more
core   +1 more source

A Most Unusual Zeolite Templating: Cage to Cage Connection of One Guest Molecule [PDF]

, 2010
An unusual case of a diquaternary ammonium dication, with large bulky end groups built from the tropane moiety and connected by a C4 methylene chain, is found to reside in zeolite SSZ-35 (STF).
Burton, Allen W., Hwang, Son-Jong, Jackowski, Anna, Kim, Chul, Olmstead, Marilyn M., Teat, Simon J., Zones, S. I.   +6 more
core   +1 more source

Estudo da emissão por fluorescência de ultravioleta na quantificação de um inibidor de corrosão do tipo sal de amônio quaternário em água

Química Nova, 2012
Quaternary ammonium salts are the corrosion inhibitors most frequently used by the oil industry. In this study, the ultraviolet fluorescence technique was evaluated for the analysis of a quaternary ammonium salt in water as a corrosion inhibitor.
Herllaine de Almeida Rangel, Fábio Merçon   +1 more
doaj   +1 more source