[20p-311-1~18] 17.2 Graphene

[20p-311-1] [Young Scientist Presentation Award Speech] Development of Graphene-based SAW Sensor using Acoustoelectric Current

〇Satoshi Okuda¹, Yasushi Kanai², Takao Ono², Masaaki Shimatani^1,3, Shinpei Ogawa¹, Takashi Ikuta^2,3, Koichi Inoue², Kenzo Maehashi^2,3, Kazuhiko Matsumoto² (1.Mitsubishi Electric Corp., 2.ISIR, Osaka Univ., 3.TUAT)

Keywords:graphene, surface acoustic wave, biosensor

Acoustoelectric current (I_A) is excited when surface acoustic wave (SAW) propagates in graphene. In this research, we have developed graphene-based SAW (GSAW) sensors using I_A. We have demonstrated that GSAW sensor detects electrical charges and mass loading simultaneously by introducing amino-group modified microbeads to the GSAW sensor. This result will be applied to specific detection of biomolecules without modifying receptors on graphene.