This work reports the action of one halogenic quaternary ammonium compound on the in-vitro proliferation of different lines of human cancer cells. IC 50 inhibition growth was observed at a concentration of 2.10(-6) mol and T1 growth at 3.10(-6)-5.10(-5) mol. These results seem to indicate that halogenic quaternary ammoniums present a potent growth inhibitory activity on different cancer cells lines. The presence of a quaternary ammonium group, responsible for some alkylating effect, could explain such a result.
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http://dx.doi.org/10.1016/s0764-4469(97)89619-9 | DOI Listing |
RSC Adv
January 2025
University of Split, Faculty of Science, Department of Chemistry R. Bošković 33 Split Croatia
Quaternary ammonium compounds (QACs) have served as essential antimicrobial agents for nearly a century due to their rapid membrane-disrupting action. However, the emergence of bacterial resistance and environmental concerns have driven interest in alternative designs, such as "soft QACs", which are designed for enhanced biodegradability and reduced resistance potential. In this study, we explored the antibacterial properties and mechanisms of action of our newly synthesized soft QACs containing a labile amide bond within a quinuclidine scaffold.
View Article and Find Full Text PDFChemMedChem
January 2025
Villanova University, Chemistry, 800 E Lancaster Ave, 19085, Villanova, UNITED STATES OF AMERICA.
Quaternary ammonium compounds (QACs) play crucial disinfectant roles in healthcare, industry, and domestic settings. Most commercially utilized QACs like benzalkonium chloride have a common architectural theme, leading to a rise in bacterial resistance and urgent need for novel structural classes. Some potent QACs such as chlorhexidine (CHX) and octenidine (OCT) feature a bolaamphiphilic architecture, comprised of two cationic centers at the molecular periphery and a non-polar region connecting them; these compounds show promise to elude bacterial resistance mechanisms.
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January 2025
Zelinsky Institute of Organic Chemistry RAS: FGBUN Institut organiceskoj himii imeni N D Zelinskogo Rossijskoj akademii nauk, Organic Chemistry, RUSSIAN FEDERATION.
For decades quaternary ammonium compounds (QACs) have served as main component of a top antiseptic and disinfectant compositions. Among them, bis-QACs are the most prominent and effective class of biocides. Although mono-QACs still dominate the antiseptic market, their activity against Gram-negative bacteria is largely inferior to bis-QACs.
View Article and Find Full Text PDFSci Rep
January 2025
Petrochemicals Department, Egyptian Petroleum Research Institute, 1 Ahmed El Zomor St., Nasr City, Cairo, 11727, Egypt.
Recovering the remaining oil after primary and secondary extraction methods poses a significant challenge. Enhanced oil recovery (EOR) techniques, which involve injecting fluids into reservoirs, aim to increase recovery rates. Ionic liquids, known for their adaptability, are emerging as promising agents in EOR, improving oil displacement by reshaping fluid properties and interacting with reservoir rocks.
View Article and Find Full Text PDFEnviron Sci Technol
January 2025
National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China.
The emergence of mobile colistin resistance gene has attracted global attention. The prevalence of -positive (MCRPEC) in humans largely decreased following the ban of colistin as an animal growth promoter in China. However, the prevalence of MCRPEC in the hospital environment and the relationship between disinfectants and remain unclear.
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