1. Department of Physics, Periyar University, Salem 636011, Tamil Nadu, India
2. Department of Physics, Muthayammal College of Arts and Science, Rasipuram 637408, Tamil Nadu, India
3. Department of Biotechnology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
4. Department of Physics, K.S. Rangasamy College of Arts and Science (Autonomous), Tiruchengode 637215, Tamil Nadu, India
5. Department of Oral and Maxillofacial Surgery, Sibar Institute of Dental Sciences, Guntur 522509, Andhra Pradesh, India