ZnO Nanoparticles (ZnO-NPs): Synthesis Using Tithonia diversifolia, Characterization and in-vitroAntimicrobial Bioassays

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dc.contributor.authorWafula, Bonface Juma
dc.contributor.authorMasika, Eric
dc.contributor.authorOnindo, Charles
dc.date.accessioned2020-11-23T09:05:20Z
dc.date.available2020-11-23T09:05:20Z
dc.date.issued2020
dc.descriptionA research article published in IOSR Journal of Applied Chemistryen_US
dc.description.abstractZnO is among leading metal oxide nanoparticles (MO-NPs). The conventional physical and chemical synthesis protocols require use of sophisticated equipment and many chemicals which may be hazardous. In this research, ZnO-NPs were prepared via a straightforward environmentally benign technique; employing Tithonia diversifolia as a reductant. Zinc nitrate solution was mixed with TDLE in the ratio of 3:1 respectively and incubated in an ultra-sonication bath. The precipitates were centrifuged at 5000 rpm for 15 minutes followed by washing with distilled water. A peak at 374 nm, as measured by UV-Vis, confirmed formation of nanoZnO.Presence of ZnO was shown by a new peak at 668.35 cm -1 in the ZnO-TDLE FTIR spectrum. The crystalline size of the sample was estimated as 20.91 nm by Debye-Scherer formula. Identification and quantification of elements was performed by X-Ray Fluorescence (XRF) analysis, which showed 91.823% Zn in the sample. The synthesized nano-ZnO showed promising antibacterial activity. The bioactive nature of ZnONPs, as demonstrated in this research, puts the nano-ZnO at pole position for the formulation of novel antimicrobial agentsen_US
dc.identifier.citationWafula, B. J., Masika, E., & Onindo, C. ZnO Nanoparticles (ZnO-NPs): Synthesis Using Tithonia diversifolia, Characterization and in-vitroAntimicrobial Bioassays.en_US
dc.identifier.issn2278-5736
dc.identifier.urihttp://www.iosrjournals.org/iosr-jac/papers/vol13-issue8/Series-1/C1308011421.pdf
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/20968
dc.language.isoenen_US
dc.publisherIOSR Journal of Applied Chemistryen_US
dc.subjectantimicrobial activityen_US
dc.subjectTithonia diversifoliaen_US
dc.subjectXRDen_US
dc.subjectX-Ray Fluorescenceen_US
dc.subjectZnO-NPsen_US
dc.titleZnO Nanoparticles (ZnO-NPs): Synthesis Using Tithonia diversifolia, Characterization and in-vitroAntimicrobial Bioassaysen_US
dc.typeArticleen_US
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