Development of semiconductor microchip that can detect prostate cancer markers with ultra-high sensitivity
Press Releases | March 3, 2022
Working toward the realization of IoT biosensors
Associate Professor Kazuhiro Takahashi and Tomoya Maeda (a second-year Master's student) and other members of the Department of Electrical and Electronic Information Engineering at Toyohashi University of Technology have developed a semiconductor sensor capable of detecting ultra-low concentrations of tumor markers, on chips made using semiconductor micromachine technology. The research team succeeded in detecting only prostate cancer antigens by adsorbing disease-derived marker molecules contained in blood and other bodily fluids into the surface of a flexibly deforming nanosheet, using the principle of converting the force caused by the interaction between the adsorbed molecules into the amount of deformation of the nanosheet. Testing chips, formed in sizes of several millimeters across using semiconductor technologies, are expected to be used as IoT biosensors for home-based testing.