1. Department of Chemical Engineering, Centre for Environmental Science and Engineering, Thematic Unit of Excellence in Soft Nanofabrication, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India;
2. Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, West Bengal, India;
3. Material Science Programme, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India