نتایج جستجو برای: quaternary ammonium compounds

تعداد نتایج: 259839  

2013
Nurit Beyth Dana Kesler Shvero Nathan Zaltsman Yael Houri-Haddad Itzhak Abramovitz Michael Perez Davidi Ervin I. Weiss

With growing concern over bacterial resistance, the identification of new antimicrobial means is paramount. In the oral cavity microorganisms are essential to the development of periradicular diseases and are the major causative factors associated with endodontic treatment failure. As quaternary ammonium compounds have the ability to kill a wide array of bacteria through electrostatic interacti...

Journal: :Journal of oleo science 2015
Ewa Obłąk Agata Piecuch Ewa Dworniczek Teresa Olejniczak

A group of biodegradable alanine-derived gemini quaternary ammonium salts (bromides and chlorides) with various alkyl chains and spacer lengths was tested for anti-adhesive and anti-biofilm activity. The strongest antifungal activity was exhibited by bromides with 10 and 12 carbon atoms within hydrophobic chains (N,N'-bis(1-decyloxy-1-oxopronan-2-yl)-N,N,N',N'-tetramethylpropane-1,3-diammonium ...

Journal: :Molecular cancer therapeutics 2016
Patrick J Burke Joseph Z Hamilton Thomas A Pires Jocelyn R Setter Joshua H Hunter Julia H Cochran Andrew B Waight Kristine A Gordon Brian E Toki Kim K Emmerton Weiping Zeng Ivan J Stone Peter D Senter Robert P Lyon Scott C Jeffrey

A quaternary ammonium-based drug-linker has been developed to expand the scope of antibody-drug conjugate (ADC) payloads to include tertiary amines, a functional group commonly present in biologically active compounds. The linker strategy was exemplified with a β-glucuronidase-cleavable auristatin E construct. The drug-linker was found to efficiently release free auristatin E (AE) in the presen...

Journal: :Toxicology research and application 2021

Quaternary ammonium compounds are antimicrobial chemicals that provide significant public health benefits by controlling bacteria and viruses cause infections such as colds, flu, COVID. The of QACs seen in increased quality-of-life measures, reduced time away from work school medical costs. As active agents, QAC-containing consumer professional products highly regulated authorities the US Envir...

Journal: :Folia histochemica et cytobiologica 2008
Keiji Hirai Yoshifumi Katayama Gabriel Peltre Shigeru Tsuji

In the present study, a fine ultrastructural localization of nicotinic acetylcholine receptor (nAChR) was attempted, using d-tubocurarine (d-TC), a quaternary ammonium compound binding to nAChR. The localization was based on the binding avidity of immunoglobulin G (IgG) for acetylcholine (ACh) and other quaternary ammonium compounds, such as d-TC. d-TC was applied to the frog neuromuscular prep...

Journal: :Environmental Science: Processes & Impacts 2020

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