TY - JOUR
T1 - Alveolus-Inspired Active Membrane Sensors for Self-Powered Wearable Chemical Sensing and Breath Analysis
AU - Su, Yuanjie
AU - Wang, Jianjun
AU - Wang, Bo
AU - Yang, Tiannan
AU - Yang, Boxi
AU - Xie, Guangzhong
AU - Zhou, Yihao
AU - Zhang, Songlin
AU - Tai, Huiling
AU - Cai, Zhixiang
AU - Chen, Guorui
AU - Jiang, Yadong
AU - Chen, Long Qing
AU - Chen, Jun
N1 - Publisher Copyright:
© 2020 American Chemical Society.
PY - 2020/5/26
Y1 - 2020/5/26
N2 - Fossil fuel internal combustion engines generate and release a huge amount of nitrogen dioxide, leading to respiratory and allergic diseases such as asthma, pneumonia, and possibly tuberculosis. Here we develop an alveolus-inspired membrane sensor (AIMS) for self-powered wearable nitrogen dioxide detection and personal physiological assessment. The bionic AIMS exhibits an excellent sensitivity up to 452.44%, a good linearity of 0.976, and superior selectivity under a NO2 concentration of 50 ppm. Furthermore, the AIMS can also be employed to diagnose human breath behaviors for breath analysis. The fundamental sensing mechanism is established using a combination of thermodynamic analysis, finite-element analysis, and phase-field simulations. It is found that the depolarization field inside the sensitive materials plays a crucial role in the self-powered gas-sensing performance. This work not only provides an efficient, low-cost, portable, and environmentally friendly means for active environmental assessment and personal biomonitoring but also provides a deep understanding of the gas-sensing mechanisms.
AB - Fossil fuel internal combustion engines generate and release a huge amount of nitrogen dioxide, leading to respiratory and allergic diseases such as asthma, pneumonia, and possibly tuberculosis. Here we develop an alveolus-inspired membrane sensor (AIMS) for self-powered wearable nitrogen dioxide detection and personal physiological assessment. The bionic AIMS exhibits an excellent sensitivity up to 452.44%, a good linearity of 0.976, and superior selectivity under a NO2 concentration of 50 ppm. Furthermore, the AIMS can also be employed to diagnose human breath behaviors for breath analysis. The fundamental sensing mechanism is established using a combination of thermodynamic analysis, finite-element analysis, and phase-field simulations. It is found that the depolarization field inside the sensitive materials plays a crucial role in the self-powered gas-sensing performance. This work not only provides an efficient, low-cost, portable, and environmentally friendly means for active environmental assessment and personal biomonitoring but also provides a deep understanding of the gas-sensing mechanisms.
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U2 - 10.1021/acsnano.0c01804
DO - 10.1021/acsnano.0c01804
M3 - Article
C2 - 32271532
AN - SCOPUS:85085260516
SN - 1936-0851
VL - 14
SP - 6067
EP - 6075
JO - ACS nano
JF - ACS nano
IS - 5
ER -