Semiconductive-like behaviour and negative differential effect observed in self-assembled riboflavin layer on gold electrodes oleh Akmal Fathurrahman Zullkifli, Mohammad Nofil, Chethan C. Thimmarayappa, Prince Nishchal Narayanaswamy Elumalai, Sara Talebi, Mitsumasa Iwamoto, Vengadesh Periasamy