January 24, 2022
The University of Tokyo
Keio University
Japan Science and Technology Agency
A research group led by Haruto Honda, a graduate student in the Major in Applied Chemistry, Graduate School of Engineering, The University of Tokyo; Project Associate Professor Koki Takahashi; Professor Takeshi Yanagida; Yosuke Shiiki, a graduate student in the Department of Integrated Design Engineering, Graduate School of Science and Technology, Keio University; and Professor Masateru Ishiguro of the Department of Electronics and Electrical Engineering, Faculty of Science and Technology at Keio University, has developed a sensor array chip integrating 1024 robust metal-oxide nanofilm molecular sensors into an area of less than one square centimeter. The group has successfully visualized the concentration distribution of airborne molecules in an area smaller than one square centimeter.
The high-density integration of molecular sensors that can operate stably over long periods, a challenge with conventional technologies, was achieved through the design of conductive metal-oxide electrode materials, a horizontal nanofilm channel structure, and analog front-end circuit technology.
By combining this sensor array with technology for controlling the interfacial chemical and physical properties of the molecular sensor channels, it is expected that a sensor capable of classifying molecular groups composed of various types of molecules can be realized.
This research was published in the online edition of the American scientific journal "ACS Sensors" on January 23, 2022 (US Eastern Standard Time).
Please see below for the full press release.