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

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dc.creatorMlalila, Nichrous
dc.creatorSwai, Hulda
dc.creatorHilonga, Askwar
dc.creatorKadam, Dattatreya
dc.date2019-05-17T12:01:21Z
dc.date2019-05-17T12:01:21Z
dc.date2016-12-16
dc.date.accessioned2022-10-25T09:21:01Z
dc.date.available2022-10-25T09:21:01Z
dc.descriptionResearch Article published by Dove Press Journal
dc.descriptionThis 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.
dc.formatapplication/pdf
dc.identifierhttp://dspace.nm-aist.ac.tz/handle/123456789/76
dc.identifier.urihttp://hdl.handle.net/123456789/95372
dc.languageen_US
dc.publisherDove Press Journal
dc.subjectantimicrobial agent
dc.subjectfull width at half maximum
dc.titleAntimicrobial dependence of silver nanoparticles on surface plasmon resonance bands against Escherichia coli
dc.typeArticle

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