1. DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
2. Departments of Chemistry and Physics, Nanoscience Center, University of Jyväskylä, 40014 Jyväskylä, Finland
3. Chemical Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
4. Proteomics Core Facility, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram 695014, India