1. Center for Nanotechnology, IIT Guwahati, Guwahati, Assam, India
2. Center for Nanotechnology, IIT Guwahati, India, Department of Chemistry, IIT Guwahati, Guwahati, Assam, India
3. Department of Mechanical Engineering, IIT Guwahati, Guwahati, Assam, India