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Highly Sensitive Flexible Iontronic Pressure Sensor for Fingertip Pulse Monitoring.
Advanced Healthcare Materials ( IF 10.0 ) Pub Date : 2020-07-29 , DOI: 10.1002/adhm.202001023 Qiupeng Lin 1, 2 , Jun Huang 1 , Junlong Yang 1 , Yi Huang 3, 4 , Yifan Zhang 1 , Yueji Wang 1 , Jianming Zhang 1 , Yan Wang 1 , Linlin Yuan 1, 5 , Minkun Cai 1 , Xingyu Hou 1 , Weixing Zhang 3 , Yunlong Zhou 5 , Shi Guo Chen 2 , Chuan Fei Guo 1, 6
Advanced Healthcare Materials ( IF 10.0 ) Pub Date : 2020-07-29 , DOI: 10.1002/adhm.202001023 Qiupeng Lin 1, 2 , Jun Huang 1 , Junlong Yang 1 , Yi Huang 3, 4 , Yifan Zhang 1 , Yueji Wang 1 , Jianming Zhang 1 , Yan Wang 1 , Linlin Yuan 1, 5 , Minkun Cai 1 , Xingyu Hou 1 , Weixing Zhang 3 , Yunlong Zhou 5 , Shi Guo Chen 2 , Chuan Fei Guo 1, 6
Affiliation
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The pulse is a key biomedical signal containing various human physiological and pathological information highly related to cardiovascular diseases. Pulse signals are often collected from the radial artery based on Traditional Chinese Medicine, or by using flexible pressure sensors. However, the wrist wrapped with a flexible pressure sensor exhibits unstable signals under hand motion because of the concave surface of the wrist. By contrast, fingertips have a convex surface and therefore show great promises in stable and long‐term pulse monitoring. Despite the promising potential, the fingertip pulse signal is weak, calling for highly sensitive detecting devices. Here, a highly sensitive and flexible iontronic pressure sensor with a linear sensitivity of 13.5 kPa−1, a swift response, and remarkable stability over 5000 loading/unloading cycles is developed. This sensor enables stable and high‐resolution detection of pulse waveform under both static condition and finger motion. Fingertip pulse waveforms from subjects of different genders, age, and health conditions are collected and analyzed, suggesting that fingertip pulse information is highly similar to that of the radial artery. This work justifies that fingertip is an ideal platform for pulse signals monitoring, which would be a competitive alternative to existing complex health monitoring systems.
中文翻译：
灵敏的柔性离子压力传感器，用于指尖脉冲监测。
脉搏是关键的生物医学信号，其中包含与心血管疾病高度相关的各种人类生理和病理信息。脉冲信号通常是基于中医或使用柔性压力传感器从artery动脉采集的。然而，由于手腕的凹面，包裹有柔性压力传感器的手腕在手运动下显示出不稳定的信号。相比之下，指尖具有凸表面，因此在稳定和长期的脉搏监测中显示出广阔的前景。尽管潜力无限，但指尖脉冲信号仍然微弱，需要使用高度灵敏的检测设备。此处，是一种线性灵敏度为13.5 kPa -1的高灵敏且灵活的离子电子压力传感器在5000个装/卸循环中，反应迅速，并具有出色的稳定性。该传感器可以在静态和手指运动下稳定，高分辨率地检测脉搏波形。收集和分析了来自不同性别，年龄和健康状况的受试者的指尖脉冲波形，这表明指尖脉冲信息与the动脉的信息高度相似。这项工作证明了指尖是用于脉搏信号监测的理想平台，它将成为现有复杂健康监测系统的有竞争力的替代选择。
更新日期：2020-09-10
中文翻译：
灵敏的柔性离子压力传感器，用于指尖脉冲监测。
脉搏是关键的生物医学信号，其中包含与心血管疾病高度相关的各种人类生理和病理信息。脉冲信号通常是基于中医或使用柔性压力传感器从artery动脉采集的。然而，由于手腕的凹面，包裹有柔性压力传感器的手腕在手运动下显示出不稳定的信号。相比之下，指尖具有凸表面，因此在稳定和长期的脉搏监测中显示出广阔的前景。尽管潜力无限，但指尖脉冲信号仍然微弱，需要使用高度灵敏的检测设备。此处，是一种线性灵敏度为13.5 kPa -1的高灵敏且灵活的离子电子压力传感器在5000个装/卸循环中，反应迅速，并具有出色的稳定性。该传感器可以在静态和手指运动下稳定，高分辨率地检测脉搏波形。收集和分析了来自不同性别，年龄和健康状况的受试者的指尖脉冲波形，这表明指尖脉冲信息与the动脉的信息高度相似。这项工作证明了指尖是用于脉搏信号监测的理想平台，它将成为现有复杂健康监测系统的有竞争力的替代选择。
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