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Ultrathin, Biocompatible, and Flexible Pressure Sensor with a Wide Pressure Range and Its Biomedical Application.
ACS Sensors ( IF 8.2 ) Pub Date : 2020-02-05 , DOI: 10.1021/acssensors.9b02260 Yongrok Jeong 1 , Jaeho Park 1 , Jinwoo Lee 2 , Kyuyoung Kim 1 , Inkyu Park 1
ACS Sensors ( IF 8.2 ) Pub Date : 2020-02-05 , DOI: 10.1021/acssensors.9b02260 Yongrok Jeong 1 , Jaeho Park 1 , Jinwoo Lee 2 , Kyuyoung Kim 1 , Inkyu Park 1
Affiliation
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In this research, an ultrathin, biocompatible, and flexible pressure sensor with a wide pressure range has been developed and applied in biomedical applications. The pressure sensing mechanism is based on the variation of contact resistance between an electrode and a three-dimensional microstructured polyimide/carbon nanotube composite film. The sensor has a thickness of about 31.3 μm, a maximum sensitivity of 41.0 MPa-1, and a sensing range of 10-500 kPa. Moreover, in situ temperature measurement by an integrated resistive temperature detector enables data correction for varying temperature conditions. In order to show the advantages of the fabricated sensor, it is attached to the human body and integrated with the surface of a radiofrequency ablation (RFA) needle with small radius of curvature. In the experiments, the proposed pressure sensor measured subtle pressure levels (pulse pressure) and high pressure levels (fingertip pressure) without losing conformal contact with the skin. In addition, when the pressure-sensor-integrated RFA needle was inserted into a bovine liver, successful detection of steam popping phenomenon was observed.
中文翻译：
具有宽压力范围的超薄，生物相容性和柔性压力传感器及其生物医学应用。
在这项研究中，已经开发了具有宽压力范围的超薄，生物相容性和柔性压力传感器，并将其应用于生物医学应用。压力感测机制基于电极与三维微结构聚酰亚胺/碳纳米管复合膜之间的接触电阻的变化。该传感器的厚度约为31.3μm，最大灵敏度为41.0 MPa-1，感测范围为10-500 kPa。此外，通过集成的电阻式温度检测器进行原位温度测量，可以对变化的温度条件进行数据校正。为了显示制成的传感器的优点，将其安装在人体上并与曲率半径小的射频消融（RFA）针的表面集成在一起。在实验中 建议的压力传感器可测量微妙的压力水平（脉压）和高压水平（指尖压力），而不会失去与皮肤的适形接触。此外，当将压力传感器集成的RFA针插入牛肝时，观察到成功检测到蒸汽爆裂现象。
更新日期：2020-02-19
中文翻译：
具有宽压力范围的超薄，生物相容性和柔性压力传感器及其生物医学应用。
在这项研究中，已经开发了具有宽压力范围的超薄，生物相容性和柔性压力传感器，并将其应用于生物医学应用。压力感测机制基于电极与三维微结构聚酰亚胺/碳纳米管复合膜之间的接触电阻的变化。该传感器的厚度约为31.3μm，最大灵敏度为41.0 MPa-1，感测范围为10-500 kPa。此外，通过集成的电阻式温度检测器进行原位温度测量，可以对变化的温度条件进行数据校正。为了显示制成的传感器的优点，将其安装在人体上并与曲率半径小的射频消融（RFA）针的表面集成在一起。在实验中 建议的压力传感器可测量微妙的压力水平（脉压）和高压水平（指尖压力），而不会失去与皮肤的适形接触。此外，当将压力传感器集成的RFA针插入牛肝时，观察到成功检测到蒸汽爆裂现象。
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