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Biosynthesis of silver nanoparticles using Garcinia kola and its antimicrobial potential

Labulo, Ayomide Hassan and Adesuji, Temitope Elijah and Oseghale, Charles Ojiefoh and Omojola, Joseph and Bodede, Olusola Sunday and Dare, E.O and Akinsiku, A.A. (2016) Biosynthesis of silver nanoparticles using Garcinia kola and its antimicrobial potential. African Journal of Pure and Applied Chemistry, 10 (1). pp. 1-7. ISSN 1996 - 0840

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We have investigated the green synthesis and antimicrobial activity of silver nanoparticles using Garcinia kola. Aqueous extract of G. kola was used to reduce AgNO3 solution to obtain black nanocrystal of silver nanoparticles. Antimicrobial activity of the silver nanoparticles was tested against Escherichia coli, Klebsiella pneumonia, Bacillus subtilis, Staphylococcus aureus, Aspergillus niger, Rhizopus stolonifer and Candida albican. The synthesized silver nanoparticles was characterized using UV-vis spectroscopy, X-ray diffraction (XRD), Transmission electron microscopy (TEM), and Fourier transform infrared (FTIR) spectroscopy. UV-visible exhibits prominently the characteristic surface plasmon resonance at around 427 nm. A remarkable particle growth onset of 10 min was observed while the reaction ended within 30 min. The XRD analysis shows that the synthesized silver nanoparticles are crystalline in nature and well-dispersed silver nanoparticles with an approximate size of 10.4 nm were observed on TEM. The synthesized silver was found to possess good antimicrobial activity against all the tested microbes. The application of the green synthesized nanoparticles can be used in many fields such as foods, beverages, cosmetics and medicine.

Item Type: Article
Uncontrolled Keywords: Silver, nanoparticles, green synthesis, Garcinia kola seed extract, transmission electron microscopy, antimicrobial activity.
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 13 Mar 2017 12:35
Last Modified: 13 Mar 2017 12:35

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