A shear horizontal surface acoustic wave(SH-SAW) based sensor measures multiple physical quantities of liquid specimens at the same time. Taking advantage of this measurement feature, SH-SAW sensors have been applied to wide varieties of sensors. SH-SAW biosensor is a form of SH-SAW sensor applications. SH-SAW biosensor detects immunoreactions occurring on its sensing area as velocity and/or ampli...Show More
In this paper, a rapid diagnostic system using a surface acoustic wave (SAW) based immunosensor is described. The immunosensor system composed of a disposable quartz based 250 MHz shear horizontal surface acoustic wave (SH-SAW) delay line and a palm-sized reader which has custom designed integrated circuit chip for electrical phase measurements. The SH-SAW immunosensor systems can measure specific...Show More
This report introduces potentials of shear horizontal surface acoustic wave (SH-SAW) biosensor in point-of-care-testing (POCT) applications. In realizing POCT devices, SH-SAW biosensor has many technical features which enables a simple structure to reduce device costs and an easy operation to reduce workloads. In order to demonstrate SH-SAW biosensor performances, experimental results measured act...Show More
Operating Direct Methanol Fuel Cell (DMFC) at ideal condition, it is extremely important to measure fuel concentration and maintain it within a proper range. Fuel concentration measuring devices have been required. SH-SAW based methanol concentration sensor is one of promising candidate for DMFC. The objective of this study is to demonstrate fundamental proper ties of SH-SAW sensor system. The eva...Show More