1. Nanostructured Thin Film Materials Laboratory, Department of Physics, Govt. Vidarbha Institute of Science and Humanities, VMV Road, Amravati 444604, Maharashtra, India
2. Department of Physics, Shri Shivaji College, Akola 444003, Maharashtra, India
3. Department of Microbiology, Shri Shivaji College, Akola 444003, Maharashtra, India