1. Department of Inorganic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, India
2. Biomaterials in Medicinal Chemistry Laboratory, Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, India
3. Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
4. National Centre for Nanoscience and Nanotechnology, University of Madras, Chennai, India