1. McGovern Institute and K. Lisa Yang Center for Bionics, Massachusetts Institute for of Technology, Cambridge, MA 02139, USA
2. Faculty of Engineering and Science, University of Greenwich, Central Avenue, Chatham Maritime, Kent ME4 4TB, UK
3. Institute of Nanoscience & Nanotechnology, NCSR “Demokritos”, Patr. Gregoriou E’ & 27 Neapoleos Str., Agia Paraskevi, 15341 Athens, Greece
4. Department of Physics, Babasaheb Bhimrao Ambedkar Bihar University, Muzaffarpur 842001, Bihar, India