Anodized Aluminum with Nanoholes Impregnated with Quaternary Ammonium Compounds Can Kill Pathogenic Bacteria within Seconds of Contact

2018 ◽  
Vol 10 (48) ◽  
pp. 41207-41214
Author(s):  
Amin Valiei ◽  
Mira Okshevsky ◽  
Nicholas Lin ◽  
Nathalie Tufenkji
Keyword(s):  
Quaternary Ammonium ◽  
Pathogenic Bacteria ◽  
Quaternary Ammonium Compounds ◽  
Anodized Aluminum ◽  
Ammonium Compounds

scholarly journals Rapid antibacterial activity of anodized aluminum-based materials impregnated with quaternary ammonium compounds for high-touch surfaces to limit transmission of pathogenic bacteria

RSC Advances ◽  
2021 ◽  
Vol 11 (60) ◽  
pp. 38172-38188
Author(s):  
Jessica Jann ◽  
Olivier Drevelle ◽  
X. Grant Chen ◽  
Myriam Auclair-Gilbert ◽  
Gervais Soucy ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Quaternary Ammonium ◽  
Pathogenic Bacteria ◽  
Quaternary Ammonium Compounds ◽  
Anodized Aluminum ◽  
Antibacterial Materials ◽  
Ammonium Compounds

Anodized aluminum-based antibacterial materials impregnated with biocidal compounds for high-touch surfaces applications to limit transmission of pathogenic bacteria.

INHIBITION OF PLANT PATHOGENIC BACTERIA IN VITRO BY ANTIBIOTICS AND QUATERNARY AMMONIUM COMPOUNDS

1951 ◽  
Vol 29 (3) ◽  
pp. 270-278 ◽  
Author(s):  
H. Katznelson ◽  
M. D. Sutton
Keyword(s):  
Quaternary Ammonium ◽  
Pathogenic Bacteria ◽  
Relative Sensitivity ◽  
Quaternary Ammonium Compounds ◽  
Halo Blight ◽  
Corynebacterium Species ◽  
Xanthomonas Species ◽  
Series Of Experiments ◽  
Ammonium Compounds

The bacteriostatic effect of certain antibiotics and quaternary ammonium compounds on representative genera and species of phytopathogenic bacteria has been studied. For Xanthomonas species aureomycin was the most potent agent with terramycin and polymyxin next; 0.1 to 0.05 p.p.m. aureomycin completely inhibited growth of most of the cultures at 24 hr. Terramycin was the most effective compound against Pseudomonas species followed by streptomycin and qureomycin; 0.2 to 0.1 p.p.m. terramycin inhibited growth of every culture tested with one exception. For Corynebacterium species aureomycin was most effective with neomycin and terramycin next, the activity of aureomycin varying from 0.4 to 0.05 p.p.m. Chloromycetin was the least effective of the antibiotics tested in the series of experiments. A comparision of the relative sensitivity of the three genera to a given antibiotic revealed that aureomycin and polymyxin were most effective on Xanithomonas, terramycin and streptomycin on Pseudomonas, and neomycin and chloromycetin on Corynecarotovora to polymyxin. the latter organism was generally more resistant to the antibiotics than the former. A number of other antibiotics and quaternaries: streptothricin, clavacin, gliotoxin, aspergillic acid, tyrothricin, penicillin, Roccal, Hyamine 1622, and compound L4-669 were also tested against strains of X. phaseoli and P> phaseolicola (agents of common and halo blight respectively of beans). None of these was as effective as aureomycin, polymyxin, streptomycin, or terramycin, the activity of the quaternaries being similar on the whole to that of chloromycetin.

Determination of quaternary ammonium compounds in food products by the method of ultra-performance liquid chromatography/high resolution mass-spectrometry

2020 ◽  
Vol 86 (8) ◽  
pp. 23-31
Author(s):  
V. G. Amelin ◽  
D. S. Bolshakov
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
Quaternary Ammonium ◽  
High Resolution Mass Spectrometry ◽  
Food Products ◽  
Quaternary Ammonium Compounds ◽  
High Resolution Mass ◽  
Ammonium Compounds ◽  
Resolution Mass

The goal of the study is developing a methodology for determination of the residual amounts of quaternary ammonium compounds (QAC) in food products by UHPLC/high-resolution mass spectrometry after water-acetonitrile extraction of the determined components from the analyzed samples. The identification and determination of QAC was carried out on an «UltiMate 3000» ultra-high-performance liquid chromatograph (Thermo Scientific, USA) equipped with a «maXis 4G» high-resolution quadrupole-time-of-flight mass spectrometric detector and an ion spray «ionBooster» source (Bruker Daltonics, Germany). Samples of milk, cheese (upper cortical layer), dumplings, pork, chicken skin and ground beef were used as working samples. Optimal conditions are specified for chromatographic separation of the mixture of five QAC, two of them being a mixture of homologues with a linear structure (including isomeric forms). The identification of QAC is carried out by the retention time, exact mass of the ions, and coincidence of the mSigma isotopic distribution. The limits for QAC detection are 0.1 – 0.5 ng/ml, the determination limits are 1 ng/ml for aqueous standard solutions. The determinable content of QAC in food products ranges within 1 – 100 ng/g. The results of analysis revealed the residual amount of QAC present in all samples, which confirms data of numerous sources of information about active use of QAC-based disinfectants in the meat and dairy industry. The correctness of the obtained results is verified by introduction of the additives in food products at a level of 10 ng/g for each QAC. The relative standard deviation of the analysis results does not exceed 0.18. The duration of the analysis is 30 – 40 min.

scholarly journals From antimicrobial activity to mechanism of resistance: the multifaceted role of simple quaternary ammonium compounds in bacterial eradication

Tetrahedron ◽  
2016 ◽  
Vol 72 (25) ◽  
pp. 3559-3566 ◽  
Author(s):  
Kevin P.C. Minbiole ◽  
Megan C. Jennings ◽  
Laura E. Ator ◽  
Jacob W. Black ◽  
Melissa C. Grenier ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Compounds ◽  
Bacterial Eradication ◽  
Mechanism Of Resistance ◽  
Ammonium Compounds
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