1. Department of Physics, Sri Sarada College for Women, Salem 636 016, Tamil Nadu, India
2. Department of Physics, Navarasam Arts & Science College for Women, Arachalur, Erode 638101, Tamil Nadu, India
3. Nanobiosciences and Nanopharmacology Division, Biomaterials and Biotechnology in Animal Health Lab, Department of Animal Health and Management, Alagappa University, Science Campus 6th Floor, Karaikudi 630 004, Tamil Nadu, India