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Development of SH-SAW sensors for underwater measurement
1School of Mechanical Engineering, Kyungpook National University, Sankyukdong 1370, Bukgu, Daegu 702-701, South Korea.
Abstract:
We developed SH (shear horizontal) surface acoustic wave (SAW) sensors to detect protein molecules in liquid solutions applying a particular antibody thin film on the delay line of transverse SAW devices. The antibody investigated was human-immuno-globulin G (HigG) to hold the antigens (anti-HigG) in the protein solution to be measured. The sensor showed stable response to the mass loading effects of the anti-HigG molecules with the sensitivity up to 10.8 ng/ml/Hz.
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