1 Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi, 682041, India.
2 Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka, 564-8680, Japan.
3 Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi, 682041, India. rjayakumar@aims.amrita.edu.