[17a-M_135-1~10] 1.3 Novel technologies and interdisciplinary engineering

9:00 AM - 9:15 AM JST(12:00 AM - 12:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[17a-M_135-1] Simultaneous Evaluation of Volatile Molecule Adsorption and Reaction on Metal Oxide Surfaces

〇Sae Noguchi¹, Chaiyanut Jirayupat³, Sivakorn Kanharattan³, Thanakrit Yoongsmporn³, Mitsuru Irie³, Xi Wang¹, Haruka Honda¹, Jiangyang Liu¹, Wataru Tanaka¹, Takuro Hosomi¹, Tsunaki Takahashi¹, Takeshi Yanagida^1,2 (1.Tokyo Univ., 2.Kyushu Univ., 3.MI-6 Ltd.)

Keywords:

Gas sensor,QCM,Chemiresistor

Metal oxide-based QCM and chemiresistors are widely used molecular sensing technologies. The former is effective for evaluating molecular adsorption and desorption behaviors, whereas the latter is suited for probing surface reactions between molecules and metal oxides. In this study, we propose a simultaneous sensing method using a nanowire QCM and a chemiresistor with SnO₂ as the detection surface, enabling the decoupled evaluation of adsorption/desorption processes and surface reactions of volatile molecules. The results suggest the capability to discriminate structurally similar molecules (difficult to achieve with a single sensor) and to advance real-sample sensing.