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Antimicrobial dependence of silver nanoparticles on surface plasmon resonance bands against Escherichia coli

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dc.contributor.author Mlalila, Nichrous
dc.contributor.author Swai, Hulda
dc.contributor.author Hilonga, Askwar
dc.contributor.author Kadam, Dattatreya
dc.date.accessioned 2019-05-17T12:01:21Z
dc.date.available 2019-05-17T12:01:21Z
dc.date.issued 2016-12-16
dc.identifier.uri http://dspace.nm-aist.ac.tz/handle/123456789/76
dc.description Research Article published by Dove Press Journal en_US
dc.description.abstract This study presents a simple and trouble-free method for determining the antimicrobial properties of silver nanoparticles (AgNPs) based on the surface plasmon resonance (SPR) bands. AgNPs were prepared by chemical reduction method using silver nitrates as a metallic precursor and formaldehyde (HCHO) as a reducing agent and capped by polyethylene glycol. Effects of several processing variables on the size and shape of AgNPs were monitored using an ultraviolet–visible spectrophotometer based on their SPR bands. The formed particles showing various particle shapes and full width at half maximum (FWHM) were tested against Escherichia coli by surface spreading using agar plates containing equal amounts of selected AgNPs samples. The NPs exhibited higher antimicrobial properties; however, monodispersed spherical NPs with narrow FWHM were more effective against E. coli growth. The NPs prepared are promising candidates in diverse applications such as antimicrobial agents in the food and biomedical industries. en_US
dc.language.iso en_US en_US
dc.publisher Dove Press Journal en_US
dc.subject antimicrobial agent en_US
dc.subject full width at half maximum en_US
dc.title Antimicrobial dependence of silver nanoparticles on surface plasmon resonance bands against Escherichia coli en_US
dc.type Article en_US


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