TY - JOUR
T1 - Wireless Ti3C2TxMXene Strain Sensor with Ultrahigh Sensitivity and Designated Working Windows for Soft Exoskeletons
AU - Yang, Haitao
AU - Xiao, Xiao
AU - Li, Zhipeng
AU - Li, Kerui
AU - Cheng, Nicholas
AU - Li, Shuo
AU - Low, Jin Huat
AU - Jing, Lin
AU - Fu, Xuemei
AU - Achavananthadith, Sippanat
AU - Low, Fanzhe
AU - Wang, Qian
AU - Yeh, Po Len
AU - Ren, Hongliang
AU - Ho, John S.
AU - Yeow, Chen Hua
AU - Chen, Po Yen
N1 - Publisher Copyright:
Copyright © 2020 American Chemical Society.
PY - 2020/9/22
Y1 - 2020/9/22
N2 - Emerging soft exoskeletons pose urgent needs for high-performance strain sensors with tunable linear working windows to achieve a high-precision control loop. Still, the state-of-the-art strain sensors require further advances to simultaneously satisfy multiple sensing parameters, including high sensitivity, reliable linearity, and tunable strain ranges. Besides, a wireless sensing system is highly desired to enable facile monitoring of soft exoskeleton in real time, but is rarely investigated. Herein, wireless Ti3C2Tx MXene strain sensing systems were fabricated by developing hierarchical morphologies on piezoresistive layers and incorporating regulatory resistors into circuit designs as well as integrating the sensing circuit with near-field communication (NFC) technology. The wireless MXene sensor system can simultaneously achieve an ultrahigh sensitivity (gauge factor ≥ 14,000) and reliable linearity (R2 ≈ 0.99) within multiple user-designated high-strain working windows (130% to ≥900%). Additionally, the wireless sensing system can collectively monitor the multisegment exoskeleton actuations through a single database channel, largely reducing the data processing loading. We finally integrate the wireless, battery-free MXene e-skin with various soft exoskeletons to monitor the complex actuations that assist hand/leg rehabilitation.
AB - Emerging soft exoskeletons pose urgent needs for high-performance strain sensors with tunable linear working windows to achieve a high-precision control loop. Still, the state-of-the-art strain sensors require further advances to simultaneously satisfy multiple sensing parameters, including high sensitivity, reliable linearity, and tunable strain ranges. Besides, a wireless sensing system is highly desired to enable facile monitoring of soft exoskeleton in real time, but is rarely investigated. Herein, wireless Ti3C2Tx MXene strain sensing systems were fabricated by developing hierarchical morphologies on piezoresistive layers and incorporating regulatory resistors into circuit designs as well as integrating the sensing circuit with near-field communication (NFC) technology. The wireless MXene sensor system can simultaneously achieve an ultrahigh sensitivity (gauge factor ≥ 14,000) and reliable linearity (R2 ≈ 0.99) within multiple user-designated high-strain working windows (130% to ≥900%). Additionally, the wireless sensing system can collectively monitor the multisegment exoskeleton actuations through a single database channel, largely reducing the data processing loading. We finally integrate the wireless, battery-free MXene e-skin with various soft exoskeletons to monitor the complex actuations that assist hand/leg rehabilitation.
KW - hierarchical morphologies
KW - soft exoskeletons
KW - strain sensors
KW - titanium carbide TiCTMXene
KW - wireless technologies
UR - http://www.scopus.com/inward/record.url?scp=85091567655&partnerID=8YFLogxK
U2 - 10.1021/acsnano.0c04730
DO - 10.1021/acsnano.0c04730
M3 - 文章
C2 - 32790337
AN - SCOPUS:85091567655
SN - 1936-0851
VL - 14
SP - 11860
EP - 11875
JO - ACS Nano
JF - ACS Nano
IS - 9
ER -