Ravindra N. Kharwar was inadvertently omitted from the author list of this article [1]. The correct author list is displayed above.

The Acknowledgement is also amended as follows:

This work is part of the PhD thesis of VCV, and was financially supported by the Council of Scientific and Industrial Research (CSIR-09/013(205)/2008/EMR-I, dt.28-09-2008), New Delhi India. Authors are thankful to the Professor-in-charge, Centre of Experimental Medicine and Surgery (CEMS), and Head Department of Botany, Banaras Hindu University. Authors also extend their thanks to Prof. Dhananjai Pandey, School of Material Science and Technology, Institute of Technology, Banaras Hindu University for assistance with the XRD and AFM studies and to Dr. Madhu Yashpal, Scientist-in-charge, Electron Microscopy Facility, Department of Anatomy, Institute of Medical Sciences, Banaras Hindu University, India, for the TEM analysis of the gold nanoparticles.