[18p-E302-1~11] 12.6 Nanobiotechnology

[18p-E302-4] Real-time observation of peptide self-assembly on graphene using imaging SPR

〇(DC)Chishu Homma¹, Daniele Storelli², Divagar Murugan², Dibyendu Khan², Vivek Pachauri², Yuhei Hayamizu¹ (1.Tokyo Tech, 2.RWTH Aachen Univ.)

Keywords:Graphene, Surface Plasmon Resonance, Peptide self-assembly

Surface functionalization and its control are key to achieve high selectivity in graphene sensors. In this study, we used imaging Surface Plasmon Resonance (iSPR) to understand the dynamics of self-assembling peptides, which have recently attracted much attention as a surface modification method, in a spatio-temporal manner. In the presentation, we will discuss the peptide sequence design and its effect on the electrical properties of graphene, based on the difference in the refractive index change upon the introduction of each peptide.