Results 1 to 10 of about 44,905 (302)

Biological Activity of Quaternary Ammonium Salts and Their Derivatives [PDF]

open access: yesPathogens, 2020
Besides their positive role, microorganisms are related to a number of undesirable effects, including many diseases, biodeterioration and food spoilage, so when their presence is undesired, they must be controlled.
Dobrawa Kwaśniewska   +2 more
doaj   +4 more sources

Microwave Synthesis of Quaternary Ammonium Salts [PDF]

open access: yesMolecules, 2008
The microwave synthesis of several quaternary ammonium salts is described. The synthesis provides comparable or better yields than published methods with reduced reaction times and in the absence of solvent.
Deveine Toney   +3 more
doaj   +3 more sources

Hydrogenation of Alkynes and Olefins Catalyzed by Quaternary Ammonium Salts [PDF]

open access: yesAdvanced Science
Catalytic hydrogenation of unsaturated hydrocarbons to alkenes and alkanes using molecular hydrogen is one of the most fundamental transformations in organic synthesis.
Qi Guo   +7 more
doaj   +2 more sources

Anti-SARS-CoV-2 Activity of Surgical Masks Infused with Quaternary Ammonium Salts [PDF]

open access: yesViruses, 2021
The SARS-CoV-2 pandemic has highlighted the need for protective and effective personal protective equipment (PPE). Research has shown that SARS-CoV-2 can survive on personal protective equipment, such as commonly used surgical masks.
Gary S. Selwyn   +2 more
doaj   +2 more sources

Synthesis, Structure, Surface and Antimicrobial Properties of New Oligomeric Quaternary Ammonium Salts with Aromatic Spacers [PDF]

open access: yesMolecules, 2017
New dimeric, trimeric and tetrameric quaternary ammonium salts were accomplished by reaction of tertiary alkyldimethyl amines with appropriate bromomethylbenzene derivatives.
Bogumił Brycki   +5 more
doaj   +2 more sources

New quaternary ammonium salts based decontaminants [PDF]

open access: yesRomanian Journal of Military Medicine, 2014
Decontamination after terrorist attacks or industrial accidents with biological and/or chemical agents („bio-chem“) must be fast and efficient, in order to reduce the number of victims and to eliminate the consequent damages.
Diana M. Popescu   +5 more
doaj   +1 more source

Modern chemical disinfectants and antiseptics. Part II

open access: yesЖурнал органічної та фармацевтичної хімії, 2021
Aim. To generalize and systematize information on the properties of modern chemical disinfectants and antiseptic agents (DA and AA) – peroxide compounds, surfactants, salts of heavy metals and metals of variable valence in the highest oxidation state ...
Vasyl M. Britsun   +3 more
doaj   +1 more source

Review on Application of Quaternary Ammonium Salts for Gas Hydrate Inhibition

open access: yesApplied Sciences, 2020
Gas hydrate solids occurrence is considered as one of the serious challenges in flow assurance as it affects the hydrocarbon production significantly, especially in deep water gas fields. The most cost-effective method to inhibit the formation of hydrate
Haizatul Hafizah Hussain, Hazlina Husin
doaj   +1 more source

Recent advances in the application of quaternary ammonium compounds in biomedical materials

open access: yes口腔疾病防治, 2019
Microbial infections affect people worldwide. Quaternary ammonium salts serve antibacterial, antifungal,antiviral, anti⁃matrix metalloproteinase and polymerization functions. While the modification of biomaterials with quater⁃ nary ammonium salts cannot
JIAO Yang, CHEN Jihua
doaj   +1 more source

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

open access: yes, 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   +4 more
core   +1 more source

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