Bioinspired Composite Microfibers for Skin Adhesion and Signal Amplification of Wearable Sensors

Advanced Materials
Dirk-M DrotlefMetin Sitti

Abstract

A facile approach is proposed for superior conformation and adhesion of wearable sensors to dry and wet skin. Bioinspired skin-adhesive films are composed of elastomeric microfibers decorated with conformal and mushroom-shaped vinylsiloxane tips. Strong skin adhesion is achieved by crosslinking the viscous vinylsiloxane tips directly on the skin surface. Furthermore, composite microfibrillar adhesive films possess a high adhesion strength of 18 kPa due to the excellent shape adaptation of the vinylsiloxane tips to the multiscale roughness of the skin. As a utility of the skin-adhesive films in wearable-device applications, they are integrated with wearable strain sensors for respiratory and heart-rate monitoring. The signal-to-noise ratio of the strain sensor is significantly improved to 59.7 because of the considerable signal amplification of microfibrillar skin-adhesive films.

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Citations

Jan 10, 2018·Advanced Materials·Morteza AmjadiMetin Sitti
Oct 23, 2018·Advanced Materials·Yei Hwan JungTae-Il Kim
Dec 15, 2018·Advanced Materials·Yang GaoZhigang Suo
Feb 19, 2019·Advanced Materials·Sangyul BaikChanghyun Pang
Mar 22, 2019·Integrative and Comparative Biology·D-M DrotlefM Sitti
Nov 15, 2018·Micromachines·Zhaozheng Yu, Huanyu Cheng
Apr 3, 2019·Advanced Science·Seungjun ChungTakhee Lee
Dec 23, 2017·Advanced Materials·Zijie ZhuTingrui Pan
May 15, 2018·Advanced Healthcare Materials·Insol HwangHoon Eui Jeong
Jan 17, 2020·Advanced Materials·Ting WangXiaodong Chen
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Apr 14, 2020·Materials Science & Engineering. C, Materials for Biological Applications·Zixian BaoMo Xian
May 10, 2021·Biosensors & Bioelectronics·Zhaoyang LiJunwen Zhong
May 19, 2021·ACS Sensors·Kyoung-Yong ChunChang-Soo Han
Jan 24, 2018·ACS Applied Materials & Interfaces·Doh-Gyu HwangMichael D Bartlett
Jan 31, 2019·ACS Applied Materials & Interfaces·Haiyan QiaoKunyan Sui
Jun 25, 2020·ACS Applied Materials & Interfaces·Laicong QiaoGuozhen Liu
Aug 17, 2021·Advanced Materials·Cem Balda DayanMetin Sitti
Mar 19, 2019·Analytical Chemistry·Bingbing GaoZhongze Gu
Jan 14, 2020·ACS Applied Materials & Interfaces·Xijian LiuJing Yu
Jul 16, 2020·ACS Applied Materials & Interfaces·Shuai LiWeitian Zhang

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