3J3-1 液相系横波型弾性表面波を利用した免疫センサ(圧電デバイス)

概要

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This paper describes immunosensors using shear horizontal surface acoustic waves (SH-SAWs), which can be directly dipped into liquids. The immunosensor is designed using an SH-SAW delay line with a center frequency of about 250MHz on a 36 degree Y-cut quartz substrate, which is composed of a transmitting interdigital transducer (IDT), receiving IDT and a biochemical reaction area in between them. Those IDTs are protected from liquids by a glass cap and epoxy walls which are constructed using a photo-lithography technique. In order to reduce the SH-SAW propagation loss due to the walls, the thickness of the walls can be minimized. In this paper, a liquid-phase SH-SAW immunosensor to detect human serum albumin (HSA) was demonstrated.
超音波エレクトロニクスの基礎と応用に関するシンポジウム運営委員会の論文
2009-11-18