基于表面应力的生物传感器敏感元件研制(英文)

Design and Fabrication of Sensitive Element of Surface Stress-Based Biosensors

基于表面应力的生物传感器利用分子间的结合能来测试生物信号,传感器敏感元件在整个传感器系统中起着决定性作用.研制了一种新型的基于表面应力的传感器,设计、制造了参数为500μm×500μm×1μm的PDMS微薄膜作为敏感元件,并对其进行测量.实验结果表明该薄膜作为敏感元件可以用来探测大肠杆菌.

Surface stress-based biosensors use the balance of free energy change to test biosignals, and the sensitive element plays a decisive role in the whole biosensors. A new surface stress-based transducer is researched and polydimethylsiloxane （PDMS） micro-membrane with 500 μmx 500 μx 1 μm dimensions was designed as the sensitive element, fabricated and measured. Results show that the PDMS membrane can be used to detect E. coli as the sensitive element.