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You searched for: Subject term Staphylococcus aureus Remove constraint Subject term: Staphylococcus aureus Subject term carbon Remove constraint Subject term: carbon Subject term aqueous solutions Remove constraint Subject term: aqueous solutions
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1. Antibacterial Activity of Reactive Quaternary Ammonium Compounds in Solution and in Nonleachable Coatings

Author:
G. Gozzelino; D. E. Romero Romero Tobar; N. Chaitiemwong; W. Hazeleger; R. Beumer
Source:
Journal of food protection 2011 v.74 no.12 pp. 2107-2112
ISSN:
0362-028X
Subject:
Escherichia coli; Listeria monocytogenes; Staphylococcus aureus; ammonium; antibacterial properties; aqueous solutions; bacteria; biocides; carbon; coatings; copolymerization; crosslinking; leaching; moieties; polymers; quaternary ammonium compounds; resins; stainless steel; ultraviolet radiation; urethane
Abstract:
... Antibacterial polymers suitable for coating applications without leaching of the biocidal component have been obtained by UV copolymerization of acrylic resins with acrylic monomers containing quaternary ammonium moieties. Suitable reactive biocides, based on quaternary ammonium monomers (QAMs), endowed with undecylacryloyl group and alkyl chains with 2 (QAM-C2), 8 (QAM-C8), and 16 (QAM-C16) carbo ...
DOI:
10.4315/0362-028X.JFP-11-220

2. Enzymatic transformation of tyrosol by Trametes trogii laccases: Identification of the product and study of its biological activities

Author:
Hanen Chakroun; Mohamed Bouaziz; Thabèt Yangui; Imen Blibech; Abdelhafidh Dhouib; Sami Sayadi
Source:
Journal of Molecular Catalysis. B, Enzymatic 2013 v.87 pp. 11-17
ISSN:
1381-1177
Subject:
Enterococcus hirae; Escherichia coli; Pseudomonas aeruginosa; Staphylococcus aureus; Trametes trogii; Tuta absoluta; antifungal properties; aqueous solutions; carbon; catalytic activity; enzymatic reactions; insecticidal properties; insects; laccase; nuclear magnetic resonance spectroscopy; pests; phytotoxicity; stable isotopes; tomatoes; viability
Abstract:
... Oxidative transformation of tyrosol catalysed by Trametes trogii laccases in aqueous solution was investigated. LC–MS analysis shows that tyrosol was converted to its dimer. The enzymatic reaction was also investigated by 1H and 13C nuclear magnetic resonance, and the product formed was identified as a dimeric tetracyclic ketone. The bactericidal and fungicidal properties of tyrosol dimer were inv ...
DOI:
10.1016/j.molcatb.2012.10.006

3. Fast mineralization and detoxification of amoxicillin and diclofenac by photocatalytic ozonation and application to an urban wastewater

Author:
Nuno F.F. Moreira; Carla A. Orge; Ana R. Ribeiro; Joaquim L. Faria; Olga C. Nunes; M. Fernando R. Pereira; Adrián M.T. Silva
Source:
Water research 2015 v.87 pp. 87-96
ISSN:
0043-1354
Subject:
Escherichia coli; Staphylococcus aureus; amoxicillin; aqueous solutions; carbon; diclofenac; drugs; growth retardation; hormones; microorganisms; mineralization; oxidation; ozonation; ozone; pesticides; photocatalysis; photolysis; pollutants; toxicity; vapors; wastewater
Abstract:
... The degradation of two organic pollutants (amoxicillin and diclofenac) in 0.1 mM aqueous solutions was studied by using advanced oxidation processes, namely ozonation, photolysis, photolytic ozonation, photocatalysis and photocatalytic ozonation. Diclofenac was degraded quickly under direct photolysis by artificial light (medium-pressure vapor arc, λexc > 300 nm), while amoxicillin remained very s ...
DOI:
10.1016/j.watres.2015.08.059

4. Paper-Based Bipolar Electrode Electrochemiluminescence Switch for Label-Free and Sensitive Genetic Detection of Pathogenic Bacteria

Author:
Liu Hongxing; Zhou Xiaoming; Liu Weipeng; Yang Xiaoke; Xing Da
Source:
Analytical chemistry 2016 v.88 no.20 pp. 10191-10197
ISSN:
1520-6882
Subject:
DNA; Escherichia coli O157; Listeria monocytogenes; Salmonella; Staphylococcus aureus; aqueous solutions; bacteria; carbon; electrochemiluminescence; electrodes; hydrophilicity; microbial detection; polymerase chain reaction; rapid methods
Abstract:
... Genetic analysis is of great importance for the detection of pathogenic bacteria. Bacterial identification must become simpler, less expensive, and more rapid than the traditional methods. In this study, a low-cost, label-free, and wireless paper-based bipolar electrode electrochemiluminescence (pBPE-ECL) analysis system was constructed for the rapid and sensitive genetic detection of pathogenic b ...
DOI:
10.1021/acs.analchem.6b02772

5. One-step eco-friendly synthesized silver-graphene oxide/poly(vinyl alcohol) antibacterial nanocomposites

Author:
Mónica Cobos; Iker De-La-Pinta; Guillermo Quindós; M. Jesús Fernández; M. Dolores Fernández
Source:
Carbon 2019 v.150 pp. 101-116
ISSN:
0008-6223
Subject:
Escherichia coli; Gram-negative bacteria; Gram-positive bacteria; Staphylococcus aureus; antibacterial properties; antibiotic resistance; aqueous solutions; ascorbic acid; carbon; crystallization; exposure duration; glass transition; microbial activity; nanocomposites; nanosilver; polyvinyl alcohol; reducing agents; silver; silver nitrate; temperature; thermal stability
Abstract:
... Due to the increasing occurrence and spread of antibiotic resistance pathogenic microorganisms, the development of antimicrobial materials has emerged as a strategy to control the bacterial activity and transmission. In this study, poly(vinyl alcohol)/silver nanoparticles-graphene oxide (PVA/AgNPs-GO) nanocomposites were synthesized by a one-step process with l-ascorbic acid as environmentally fri ...
DOI:
10.1016/j.carbon.2019.05.011

6. Synthesis, physiochemical properties, and antimicrobial activities of a novel gemini surfactants with biphenyl and multiple amide groups

Author:
Liyu Zhang; Lihua Jia; Zhenlong Zhao; Rui Yang; Jinping Wang; Xiangfeng Guo
Source:
Colloids and surfaces 2020 v.593 pp. 124628
ISSN:
0927-7757
Subject:
Escherichia coli; Fourier transform infrared spectroscopy; Staphylococcus aureus; amides; ammonium chloride; antibacterial properties; aqueous solutions; biphenyl; calorimetry; carbon; electrospray ionization mass spectrometry; emulsifying; foaming; heat production; hydrogen bonding; hydrophobicity; micelles; moieties; nuclear magnetic resonance spectroscopy; stable isotopes; surface active properties; surface tension; surfactants; titration; toluene
Abstract:
... The structure of aqueous solution surfactants, particularly the spacer group used to link the polar head groups, can significantly affect its surface activities and application properties. Herein, we designed and synthesized cationic gemini surfactants (i. e., CₙDBH, n = 12, 14, 16, 18) with biphenyl and multiple amide groups as rigid spacer and characterized their structures using ¹H NMR, ¹³C NMR ...
DOI:
10.1016/j.colsurfa.2020.124628