A Wireless Chemical Sensing Scheme using Ultrasonic Imaging of Silica-Particle-Embedded Hydrogels (Silicagel)

Joo-Hyeong Park,A Kim,H. Jiang,Seung Hyun Song,J. Zhou,Babak Ziaie

Sensors and Actuators B: Chemical（2018）

引用 15|浏览3

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摘要

•Embedment of silica beads into hydrogel (silicagel) allows ultrasonic image sensing.•Silicagel’s swelling response is directly measured from its ultrasonic image.•Silicagel’s swelling response changes gray-scale intensity of its ultrasonic image.•A wireless pH sensor using pH sensitive hydrogel is demonstrated.

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关键词

Chemical sensor,Hydrogel,Silica beads,pH sensor,Ultrasonic imaging

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