Results 21 to 30 of about 1,871,225 (278)

Alkylphosphocholines and quaternary ammonium compounds against acanthamoeba keratitis [PDF]

open access: yes, 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   +2 more sources

Selective Recognition of Quaternary Ammonium Cations [PDF]

open access: yes, 2023
Selective recognition of ammonium cations fundamentally relies on their degree of substitution. In biological systems, proteins can preferentially bind more substituted ammonium cations over less substituted homologues.
Abby, Haworth   +11 more
core   +2 more sources

Application of Quaternary Ammonium Compounds as Compatibilizers for Polymer Blends and Polymer Composites—A Concise Review

open access: yesApplied Sciences, 2021
A wide variety of quaternary ammonium compounds (QACs) have escalated the attraction of researchers to explore the application of QACs. The compounds have frequently been synthesized through alkylation or quaternization of tertiary amines with alkyl ...
Ahmad Adlie Shamsuri   +1 more
doaj   +1 more source

Switchable quaternary ammonium transformation leading to salinity-tolerance-conferring plant biostimulants [PDF]

open access: yes, 2023
Since their discovery by Menshutkin in 1890, quaternary ammonium salts have been synthesized by alkylating tertiary amines, with the development of new synthetic methods having received limited attention.
Tomoko, Hirano   +3 more
core   +2 more sources

Quaternary Ammonium Compounds as Candidate Photoprotective Compounds in Reef-Building Corals

open access: yesFrontiers in Marine Science, 2022
Quaternary ammonium compounds (QACs) – e.g., betaines – have a chemical structure related to that of the tertiary sulfonium compounds (TSCs) – e.g., dimethylsulfoniopropionate – explaining why these two classes of coral metabolites are often studied and ...
Richard W. Hill
doaj   +1 more source

N-(((1S,5R)-6,6-Dimethylbicyclo[3.1.1]hept-2-en-2-yl)methyl)-3-((1R,5S)-6,6-dimethylbicyclo[3.1.1]hept-2-ene/ane-2-carboxamido)-N,N-dimethylpropan-1-aminium Bromide

open access: yesMolbank, 2023
The synthesis of the title compounds was performed from (-)-cis-myrtanic and (-)-myrtenic acids. The compounds obtained were characterized using 1H- and 13C-NMR, IR, and high-resolution mass spectrometry.
Ilmir R. Gilfanov   +10 more
doaj   +1 more source

Characterization of Cleaning and Disinfection Product Use, Glove Use, and Skin Disorders by Healthcare Occupations in a Midwestern Healthcare Facility

open access: yesBuildings, 2022
Healthcare facility staff use a wide variety of cleaning and disinfecting products during their daily operations, many of which are associated with respiratory or skin irritation or sensitization with repeated exposure. The objective of this study was to
Lisa Kobos   +7 more
doaj   +1 more source

Data for Quaternary ammonium compounds (QACs) in wastewater influent and effluent collected throughout the COVID-19 pandemic

open access: yes, 2022
The data in this file are the concentrations of quaternary ammonium compound (QAC) disinfectants in wastewater influent and effluent from four wastewater treatment plants from May 2020 to January 2022.
Arnold, William A   +2 more
core   +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

Synthesis, Analysis, Cholinesterase-Inhibiting Activity and Molecular Modelling Studies of 3-(Dialkylamino)-2-hydroxypropyl 4-[(Alkoxy-carbonyl)amino]benzoates and Their Quaternary Ammonium Salts

open access: yesMolecules, 2017
Tertiary amines 3-(dialkylamino)-2-hydroxypropyl 4-[(alkoxycarbonyl)amino]benzoates and their quaternary ammonium salts were synthesized. The final step of synthesis of quaternary ammonium salts was carried out by microwave-assisted synthesis.
Tereza Padrtova   +9 more
doaj   +1 more source

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