Results 201 to 210 of about 3,840 (249)

Quaternary Ammonium Compound Toxicity in Chickens

Avian Diseases, 1982
Two commercial White Leghorn flocks of 41,000 and 57,000 25-week-old hens experienced death losses of 676 and 1,089 birds in a week. Six birds from each flock were presented for necropsy to the Animal Disease Diagnostic Laboratory at Purdue University with a clinical history of excessive deaths, unsatisfactory production, and dehydration. Gross lesions
A S, Dhillon, R W, Winterfield, H L, Thacker   +2 more
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Quaternary Ammonium Compounds

2012
The main cause of failure of biomedical implants is bacterial infections. Despite all efforts, it will never be possible to completely free operating theaters from bacteria, as human bodies contain already 1014 bacteria. Once on a surface, bacteria start proliferating, while protecting themselves with a slime layer against the immune system and ...
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Ototoxic Effect of Quaternary Ammonium Compounds

Acta Oto-Laryngologica, 1982
In earlier investigations by the author it has been shown that chlorhexidine, when introduced into the middle ear of guinea pigs, caused serious damage to the inner ear. The present investigation was performed in order to study if the quaternary ammonium compounds benzethonium chloride and benzalkonium chloride, frequently used for skin disinfection ...
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Quaternary ammonium compounds in the Capparaceae

Biochemical Systematics and Ecology, 1996
Abstract Fifty-five species and varieties of Capparaceae distributed in 17 genera have been examined for the presence of betaines and other quaternary ammonium compounds. Prolinebetaine and/or 3-hydroxyprolinebetaine were detected in all the species examined of Crataeva, Ritchiea, Maerua, Boscia, Capparis, Cladostemon, Cadaba, Thilachium, Morisonia
William F.H. McLean, Gerald Blunden, Kenneth Jewers   +2 more
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Quaternary Ammonium Compounds

2002
Quaternary ammonium chlorides (QACs) occupy a unique niche in the world of antimicrobial compounds. Rather than being a single, well-defined substance, as is the case for many such active ingredients, QACs are composed of a diverse, eclectic collection of substances that share a common chemical motif, namely a molecular structure containing a positively
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Quaternary Ammonium Compounds as Preservatives*

Journal of the American Pharmaceutical Association (Scientific ed.), 1947
The antiseptics employed were cetyl pyridinium chloride (Ceepryn) and p‐tertiary octylphenoxyethoxyethyl dimethyl benzyl ammonium chloride (Phemerol). Very low concentrations of these antiseptics were found effective in preserving both gelatin and sucrose solutions.
L F, TICE, A W, MOORE
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Use of a quaternary ammonium compound for the surgical scrub

The American Journal of Surgery, 1949
Abstract 1. 1. The quaternary ammonium compounds, as a group, are detergent and bactericidal in dilute aqueous solutions and are superior in both actions to anionic soaps. They offer, therefore, potential advantages for use in the surgical scrub. 2. 2.
Henry Swan, Richard I. Gonzalez, A. Harris, C. Couslon, M.L. Hopwood   +4 more
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Quaternary Ammonium Compounds as Molluscacides

Science, 1954
A, VALLEJO-FREIRE, O F, RIBEIRO, I F, RIBEIRO   +2 more
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Interaction of Salicylic Acid with Quaternary Ammonium Compounds

Journal of Pharmaceutical Sciences, 1968
A marked increase in viscosity is produced in solutions of dodecyl, tetradecyl pyridinium bromide, cetylpyridinium chloride, benzalkonium chloride, and benzethonium chloride containing salicylic acid. The viscosity increases with acid concentration to a maximum and then decreases.
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QUATERNARY AMMONIUM COMPOUNDS

Annual Review of Microbiology, 1947
Otto Rahn, William P. Van Eseltine
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