Quaternary Ammonium Compounds
Mostrando 1-12 de 77 artigos, teses e dissertações.
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1. Use of green fluorescent protein labeled non-tuberculous mycobacteria to evaluate the activity quaternary ammonium compound disinfectants and antibiotics
Abstract Although infections with NonTuberculous Mycobacteria have become less common in AIDS patients, they are important opportunistic infections after surgical procedures, likely because they are ubiquitous and not efficiently killed by many commonly used disinfectants. In Venezuela there have recently been many non-tuberculous mycobacteria soft tissue in
Braz. J. Microbiol.. Publicado em: 2017-03
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2. Characterization of the variable region in the class 1 integron of antimicrobial-resistant Escherichia coli isolated from surface water
Abstract Fecal bacteria are considered to be a potential reservoir of antimicrobial resistance genes in the aquatic environment and could horizontally transfer these genes to autochthonous bacteria when carried on transferable and/or mobile genetic elements. Such circulation of resistance genes constitutes a latent public health hazard. The aim of this study
Braz. J. Microbiol.. Publicado em: 2016-06
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3. Biocide tolerance in Salmonella from meats in Southern Spain
Salmonella serovars sampled from meat products in Southern Spain (Andalucía) during the period 2002-2007 were analyzed in this study. The serovars most frequently detected (in order) were Typhimurium, Enteritidis, Derby, Anatum and Rissen. Isolates (n = 43) were tested for sensitivity to biocides, including the quaternary ammonium compounds benzalkonium chl
Braz. J. Microbiol.. Publicado em: 27/10/2015
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4. Antimicrobial mouthrinse use as an adjunct method in peri-implant biofilm control
Great possibilities for oral rehabilitation emerged as a result of scientific consolidation, as well as a large number of dental implant applications. Along with implants appeared diseases such as mucositis and peri-implantitis, requiring management through several strategies applied at different stages. Biofilm accumulation is associated with clinical signs
Braz. oral res.. Publicado em: 2014
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5. Activity of disinfectants against foodborne pathogens in suspension and adhered to stainless steel surfaces
The purpose of this study was to investigate and compare the efficacy of various disinfectants on planktonic cells and biofilm cells of Listeria monocytogenes, Staphylococcus aureus and Escherichia coli. Numbers of viable biofilm cells decreased after treatment with all tested disinfectants (iodine, biguanide, quaternary ammonium compounds, peracetic acid an
Braz. J. Microbiol.. Publicado em: 2012-09
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6. Estudo da emissão por fluorescência de ultravioleta na quantificação de um inibidor de corrosão do tipo sal de amônio quaternário em água
Quaternary ammonium salts are the corrosion inhibitors most frequently used by the oil industry. In this study, the ultraviolet fluorescence technique was evaluated for the analysis of a quaternary ammonium salt in water as a corrosion inhibitor. The comparison with standard salt showed that an alkyl aryl quaternary ammonium salt is the main fluorophore, wit
Química Nova. Publicado em: 2012
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7. Partículas e filmes híbridos de polímeros e compostos de amônio quaternário com atividade antimicrobiana / Particles and films hybrid of polymers and quaternary ammonium compounds with antimicrobial activity
Partículas e filmes híbridos de polímeros e compostos de amônio quaternário (CAQ) foram caracterizados quanto a propriedades físicas e atividade contra cepas de Pseudomonas aeruginosa ATCC 27853 e Staphylococcus aureus ATCC 25923. Partículas híbridas foram obtidas a partir de fragmentos de bicamada (BF) de brometo de dioctadecildimetilamônio (DODAB)
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/02/2011
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8. In vitro efficiency of disinfectants against salmonella enteritidis samples isolated from broiler carcasses
The threat to public health represented by Salmonella is at least partially a consequence of its ecology in poultry hosts. Good manufacturing practices in the processing plant can reduce the contamination of poultry products, and critical control point principles are essential throughout the chain production. One procedure adopted in critical points control
Publicado em: 2010
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9. Biological properties of an antimicrobial monomer for application in prosthodontics / Análise das propriedades biológicas de um monômero antimicrobiano para aplicação em prótese dentária
A resina acrílica para base de próteses removíveis é capaz de acumular biofilme e assim favorecer o aparecimento de diversos problemas na cavidade bucal dos usuários de próteses. A imobilização de um agente antisséptico na matriz polimérica tem potencial preventivo frente a esse acúmulo, mas necessita de maior investigação. O objetivo deste estu
Publicado em: 2010
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10. Emprego da técnica de emissão por fluorescência de ultravioleta no monitoramento de inibidores de corrosão em água produzida / Use of ultraviolet fluorescence emission in the monitoring of corrosion inhibitor in produced water
In order to increase the volume of oil extraction, solve and prevent problems in oil production, several chemical products are used. Corrosion inhibitors are the main chemical products used in the whole oil production chain, whose objective is to protect the system from deterioration caused by corrosion. The quaternary ammonium salts are the kind of inhibito
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/07/2009
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11. In vitro efficiency of disinfectants against salmonella enteritidis samples isolated from broiler carcasses
The threat to public health represented by Salmonella is at least partially a consequence of its ecology in poultry hosts. Good manufacturing practices in the processing plant can reduce the contamination of poultry products, and critical control point principles are essential throughout the chain production. One procedure adopted in critical points control
Revista Brasileira de Ciência Avícola. Publicado em: 2008-06
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12. The presence of qacA/B gene in Brazilian methicillin-resistant Staphylococcus aureus
A total of 74 methicillin-resistant Staphylococcus aureus (MRSA) strains isolated from three government hospitals in 2002 and 2003 were examined concerning the distribution of qacA/B gene, which is the determinant of resistance to quaternary ammonium compounds largely employed in hospital disinfection. By polymerase chain reaction the qacA/B gene was found i
Memórias do Instituto Oswaldo Cruz. Publicado em: 2007-06