Antibacterial performance of Ag Nanoparticles and AgGO nanocomposites prepared via rapid microwave-assisted synthesis method

Chook, S.W. and Chia, C.H. and Zakaria, S. and Ayob, M.K. and Chee, K.L. and Huang, N.M. and Neoh, H.M. and Lim, H.N. and Jamal, R. and Rahman, R.M.R.A. (2012) Antibacterial performance of Ag Nanoparticles and AgGO nanocomposites prepared via rapid microwave-assisted synthesis method. Nanoscale Research Letters, 7 (1). p. 541. ISSN 1931-7573, DOI https://doi.org/10.1186/1556-276x-7-541.

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Abstract

Silver nanoparticles and silver-graphene oxide nanocomposites were fabricated using a rapid and green microwave irradiation synthesis method. Silver nanoparticles with narrow size distribution were formed under microwave irradiation for both samples. The silver nanoparticles were distributed randomly on the surface of graphene oxide. The Fourier transform infrared and thermogravimetry analysis results showed that the graphene oxide for the AgNP-graphene oxide (AgGO) sample was partially reduced during the in situ synthesis of silver nanoparticles. Both silver nanoparticles and AgGO nanocomposites exhibited stronger antibacterial properties against Gram-negative bacteria (Salmonella typhi and Escherichia coli) than against Gram-positive bacteria (Staphyloccocus aureus and Staphyloccocus epidermidis). The AgGO nanocomposites consisting of approximately 40 wt. silver can achieve antibacterial performance comparable to that of neat silver nanoparticles.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: Antibacterial properties, Graphene oxide, Microwave irradiation, Nanocomposites, Silver nanoparticles
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: miss munirah saadom
Date Deposited: 02 Jul 2013 02:23
Last Modified: 02 Jul 2013 02:23
URI: http://eprints.um.edu.my/id/eprint/6313

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