A 3-mu W CMOS Glucose Sensor for Wireless Contact-Lens Tear Glucose Monitoring

作者：Liao, Yu-Te^*; Yao, Huanfen; Lingley, Andrew; Parviz, Babak; Otis, Brian P.

来源：IEEE Journal of Solid-State Circuits, 2012, 47(1): 335-344.

DOI：10.1109/JSSC.2011.2170633

• Contact lens
• glucose sensor
• heterogeneous integration
• low power
• noninvasive
• potentiostat
• wireless health monitoring

This paper presents a noninvasive wireless sensor platform for continuous health monitoring. The sensor system integrates a loop antenna, wireless sensor interface chip, and glucose sensor on a polymer substrate. The IC consists of power management, readout circuitry, wireless communication interface, LED driver, and energy storage capacitors in a 0.36-mm(2) CMOS chip with no external components. The sensitivity of our glucose sensor is 0.18 mu A.mm(-2).mM(-1). The system is wirelessly powered and achieves a measured glucose range of 0.05-1 mM with a sensitivity of 400 Hz/mM while consuming 3 mu W from a regulated 1.2-V supply.

• 出版日期2012-1