1. Laboratory for Plasma Processing of Materials, Department of Physics, Tezpur University, Tezpur, Assam, India;
2. Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, Assam, India;
3. Drug Discovery Laboratory, Institute of Advanced study in Science and Technology, Guwahati, Assam, India;
4. Central Instruments Facility, Indian Institute of Technology, Guwahati, Assam, India