Table of Contents
ISRN Nanomaterials
Volume 2012, Article ID 650759, 6 pages
Research Article

Microwave-Mediated Rapid Synthesis of Gold Nanoparticles Using Calotropis procera Latex and Study of Optical Properties

1Biotech Hub, Centre for the Environment, Indian Institute of Technology Guwahati, Assam, Guwahati 781039, India
2Biomaterials and Tissue Engineering Laboratory, Department of Biotechnology, Indian Institute of Technology Guwahati, Assam, Guwahati 781039, India

Received 21 September 2012; Accepted 15 October 2012

Academic Editors: A. Datta, A. Kajbafvala, and S.-H. Kim

Copyright © 2012 Ratul Kumar Das et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We report a microwave-mediated simple and rapid method of gold nanoparticles (GNPs) synthesis using latex of Calotropis procera. UV-Vis spectroscopic studies indicated the formation of GNPs. The GNPs were stable at room temperature (25°C) for six months. Transmission electron microscope (TEM) micrographs of the synthesized GNPs showed the formation of spherical nanoparticles with an average size of 13 ± 5 nm. SAED and XRD confirmed the crystalline nature of GNPs. Fourier transform infrared (FTIR) analysis indicated the presence of organic coating on the nanoparticles. Cytotoxicity of the GNPs was tested on HeLa and A549 and found to be nontoxic which was indicating that latex of Calotropis procera provided the nontoxic coating on GNPs, thus can be used as biomedical and pharmacological applications.