Cover Page December-2011-Advanced Materials Letters

Advanced Materials Letters

Volume 2, Issue 6, Pages 429-434, December 2011
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Biosynthesis of silver nanoparticles using murraya koenigii (curry leaf): An investigation on the effect of broth concentration in reduction mechanism and particle size

Laura Christensen1, 2, Singaravelu Vivekanandhan1,2, Manjusri Misra1, 2*, Amar Kumar Mohanty1, 2

1School of Engineering, Thornborough Building, University of Guelph, Guelph, N1G 2W1, Ontario, Canada
2Bioproducts Discovery and Development Centre, Department of Plant Agriculture, Crop Science Building, University of Guelph, Guelph, N1G 2W1, Ontario, Canada

Adv. Mater. Lett., 2011, 2 (6), pp 429-434

DOI: 10.5185/amlett.2011.4256

Publication Date (Web): Apr 08, 2012

E-mail: mmisra@uoguelph.ca

Abstract

Biological synthesis of silver nanoparticles using Murraya koenigii leaf extract was investigated and the effect of broth concentration in reduction mechanism and particle size is reported. The rapid reduction of silver (Ag+) ions was monitored using UV-visible spectrophotometry and showed formation of silver nanoparticles within 15 minutes. Transmission electron microscopy (TEM) and atomic force microscopy (AFM) analysis showed that the synthesized silver nanoparticle are varied from 10-25 nm and have the spherical shape. Further, the XRD analysis confirms the nanocrystalline phase of silver with FCC crystal structure. From this study, it was found that the increasing broth concentration increases the rate of reduction and decreases the particle size.

Keywords

Silver nanoparticles, biosynthesis, murraya koenigii, leaf extract

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