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Nanoparticle surface stabilizing agents influence antibacterial action
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DOI：10.3389/fmicb.2023.1119550.png)
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摘要
En 中文
The antibacterial properties of nanoparticles are of particular interest because of their potential to serve as an alternative therapy to combat antimicrobial resistance. Metal nanoparticles such as silver and copper nanoparticles have been investigated for their antibacterial properties. Silver and copper nanoparticles were synthesized with the surface stabilizing agents cetyltrimethylammonium bromide (CTAB, to confer a positive surface charge) and polyvinyl pyrrolidone (PVP, to confer a neutral surface charge). Minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), and viable plate count assays were used to determine effective doses of silver and copper nanoparticles treatment against Escherichia coli, Staphylococcus aureus and Sphingobacterium multivorum. Results show that CTAB stabilized silver and copper nanoparticles were more effective antibacterial agents than PVP stabilized metal nanoparticles, with MIC values in a range of 0.003 mu M to 0.25 mu M for CTAB stabilized metal nanoparticles and 0.25 mu M to 2 mu M for PVP stabilized metal nanoparticles. The recorded MIC and MBC values of the surface stabilized metal nanoparticles show that they can serve as effective antibacterial agents at low doses.
Keyword:
engineered nanoparticles
stabilizing agent
minimum inhibitory concentration
alternative antimicrobial resistance agent
minimum bactericidal concentration
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期刊
IF:
4.5
论文数:
4.0W
被引数:
16.6W
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