1. Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam781039, India
2. Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam781039, India
3. Jyoti and Bhupat Mehta School of Health Sciences and Technology, Indian Institute of Technology Guwahati, Guwahati, Assam781039, India