Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Telangana 502285, India; Institute for Stem Cell Biology and Regenerative Medicine, NCBS-TIFR, GKVK-Campus, Bellary Road, Bangalore 560 065, India. Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Telangana 502285, India. Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Telangana 502285, India. Electronic address: saptarshi@che.iith.ac.in.