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Antimicrobial activities of silver nanoparticles bio-synthesized from diatom Amphora sp.

Tevan, R. and Mugilan, Govindaraju and Saravanan, Jayakumar and Govindan, Natanamurugaraj and Mohd Hasbi, Ab. Rahim and Gaanty Pragas, Maniam and Ichwan, Solachuddin J. A. (2017) Antimicrobial activities of silver nanoparticles bio-synthesized from diatom Amphora sp. Journal of Engineering and Science Research, 1 (2). pp. 176-184. ISSN 2289-7127

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Abstract

A biological method was employed to synthesize silver nanoparticles through marine diatom Amphora sp. Antimicrobial efficacy test against different pathogenic bacteria were performed through synthesized silver nanoparticles. The physio-chemical properties of synthesized silver nanoparticles were studied using analytical techniques such as UV-Vis spectrophotometer, Field Emission Scanning Electron Microscopy (FESEM), Energy-Dispersive X-ray Spectroscopy (EDX) and Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Powder Diffraction (XRD). UV-Vis color intensity study and higher magnification of the Field Emission Scanning Electron Microscopy image showed the synthesized silver nanoparticles were rod shaped with a size range from 42 nm to 46 nm. The synthesized nanoparticles exhibited antibacterial activities in varying magnitudes. About 10 mg/ml of silver nanoparticles were able to inhibit the growth of gram-negative bacteria while gram-positive bacteria were resistant towards similar concentrations of silver nanoparticles.

Item Type: Article
Uncontrolled Keywords: Biosynthesis, Silver nanoparticles, Antimicrobial, Diatoms
Subjects: Q Science > QP Physiology
Faculty/Division: Faculty of Industrial Sciences And Technology
Depositing User: Noorul Farina Arifin
Date Deposited: 08 Mar 2018 08:02
Last Modified: 22 Nov 2018 06:48
URI: http://umpir.ump.edu.my/id/eprint/20694
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