Results 21 to 30 of about 3,840 (249)
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 +16 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
Unprecedented and Readily Tunable Photoluminescence from Aliphatic Quaternary Ammonium Salts
, 2021 Compounds bearing aliphatic amines could be emissive under proper conditions. Their ionized counterparts, quaternary ammonium salts (QASs), which are widely used as phase-transfer catalysts, ionic liquids, disinfectants and surfactants, however, are ...
Xiaohong, Chen +5 more
core +1 more source
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 +1 more
doaj +1 more source
Synthesis and Properties of Cleavable Quaternary Ammonium Compounds
Journal of Oleo Science, 2021 Quaternary ammonium compounds are widely used as antiseptic and disinfectant. It is been a concern that their widespread use will lead to an increase of environmental problems, therefore the development of biodegradable surfactants is necessary. The present research is aimed at the design of novel amphiphilic molecules with similar properties to those ...
Gilbert, Elangeni Ana +5 more
openaire +4 more sources
Removal of quaternary ammonium compounds in ion exchange process [PDF]
E3S Web of Conferences, 2019 The study attempted to evaluate the effectiveness of ion exchange process in cationic surfactant (benzalkonium chloride, BAC) removal from model solutions.
Klimonda Aleksandra, Kowalska Izabela
doaj +1 more source
Food and bile micelle binding of quaternary ammonium compounds
ADMET and DMPK, 2023 Background and Purpose: Physiologically-based biopharmaceutics modeling (PBBM) has been widely used to predict the oral absorption of drugs. However, the prediction of food effects on oral drug absorption is still challenging, especially for negative ...
Sumiji Takeru, Kiyohiko Sugano
doaj +1 more source
Alkylphosphocholines and quaternary ammonium compounds against acanthamoeba keratitis [PDF]
, 2020 Acanthamoeba keratitis (AK) is a sight threatening infection caused by the free-living amoeba Acanthamoeba. This infection is largely associated with contact lens wear and the recent increase in AK incidences highlights the ineffectiveness of existing ...
Williams, Roderick A.M., Mooney, Ronnie
core
Methods for determining cationic surface solids (critical review)
Український журнал військової медициниThe purpose of this articule to summarize and systematize information on methods for identification and quantification of quaternary ammonium compounds. Results.
O. V. Kovalska +2 more
doaj +1 more source
Coresistance to quaternary ammonium compounds in extended-spectrum beta-lactamase-producing Escherichia coli [PDF]
International Journal of One Health, 2020 Background and Aim: Extended-spectrum β-lactamases (ESBL) in Escherichia coli constitutes one of the major threats to modern medicine, and the increasing pollution with quaternary ammonium compounds (QACs) has been suspected to contribute to the spread ...
Susanne Sütterlin +2 more
doaj +1 more source