TY - JOUR
T1 - Robust, self-adhesive, reinforced polymeric nanofilms enabling gas-permeable dry electrodes for long-term application
AU - Wang, Yan
AU - Lee, Sunghoon
AU - Wang, Haoyang
AU - Jiang, Zhi
AU - Jimbo, Yasutoshi
AU - Wang, Chunya
AU - Wang, Binghao
AU - Kim, Jae Joon
AU - Koizumi, Mari
AU - Yokota, Tomoyuki
AU - Someya, Takao
N1 - Publisher Copyright:
© 2021 National Academy of Sciences. All rights reserved.
PY - 2021/9/21
Y1 - 2021/9/21
N2 - Robust polymeric nanofilms can be used to construct gas-permeable soft electronics that can directly adhere to soft biological tissue for continuous, long-term biosignal monitoring. However, it is challenging to fabricate gas-permeable dry electrodes that can self-adhere to the human skin and retain their functionality for long-term (>1 d) health monitoring. We have succeeded in developing an extraordinarily robust, self-adhesive, gas-permeable nanofilm with a thickness of only 95 nm. It exhibits an extremely high skin adhesion energy per unit area of 159 μJ/cm2. The nanofilm can self-adhere to the human skin by van der Waals forces alone, for 1 wk, without any adhesive materials or tapes. The nanofilm is ultradurable, and it can support liquids that are 79,000 times heavier than its own weight with a tensile stress of 7.82 MPa. The advantageous features of its thinness, self-adhesiveness, and robustness enable a gas-permeable dry electrode comprising of a nanofilm and an Au layer, resulting in a continuous monitoring of electrocardiogram signals with a high signal-to-noise ratio (34 dB) for 1 wk.
AB - Robust polymeric nanofilms can be used to construct gas-permeable soft electronics that can directly adhere to soft biological tissue for continuous, long-term biosignal monitoring. However, it is challenging to fabricate gas-permeable dry electrodes that can self-adhere to the human skin and retain their functionality for long-term (>1 d) health monitoring. We have succeeded in developing an extraordinarily robust, self-adhesive, gas-permeable nanofilm with a thickness of only 95 nm. It exhibits an extremely high skin adhesion energy per unit area of 159 μJ/cm2. The nanofilm can self-adhere to the human skin by van der Waals forces alone, for 1 wk, without any adhesive materials or tapes. The nanofilm is ultradurable, and it can support liquids that are 79,000 times heavier than its own weight with a tensile stress of 7.82 MPa. The advantageous features of its thinness, self-adhesiveness, and robustness enable a gas-permeable dry electrode comprising of a nanofilm and an Au layer, resulting in a continuous monitoring of electrocardiogram signals with a high signal-to-noise ratio (34 dB) for 1 wk.
KW - Adhesive nanofilms
KW - Dry electrodes
KW - Gas-permeable sensors
KW - Long-term health monitoring
UR - http://www.scopus.com/inward/record.url?scp=85114883544&partnerID=8YFLogxK
U2 - 10.1073/pnas.2111904118
DO - 10.1073/pnas.2111904118
M3 - 文章
C2 - 34518214
AN - SCOPUS:85114883544
SN - 0027-8424
VL - 118
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
IS - 38
M1 - e2111904118
ER -