Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/148024
Title: An on-skin electrode with anti-epidermal-surface-lipid function based on a zwitterionic polymer brush
Authors: He, Ke
Liu, Zhiyuan
Wan, Changjin
Jiang, Ying
Wang, Ting
Wang, Ming
Zhang, Feilong
Liu, Yaqing
Pan, Liang
Xiao, Meng
Yang, Hui
Chen, Xiaodong 
Keywords: Engineering::Materials::Composite materials
Issue Date: 2020
Source: He, K., Liu, Z., Wan, C., Jiang, Y., Wang, T., Wang, M., Zhang, F., Liu, Y., Pan, L., Xiao, M., Yang, H. & Chen, X. (2020). An on-skin electrode with anti-epidermal-surface-lipid function based on a zwitterionic polymer brush. Advanced Materials, 32(24), 2001130-. https://dx.doi.org/10.1002/adma.202001130
Project: MOE2019-T2-2-022
#A18A1b0045
NRF-CRP13-2014-02
NRF-NRFI2017-07
Journal: Advanced Materials 
Abstract: On‐skin flexible devices provide a noninvasive approach for continuous and real‐time acquisition of biological signals from the skin, which is essential for future chronic disease diagnosis and smart health monitoring. Great progress has been achieved in flexible devices to resolve the mechanical mismatching between conventional rigid devices and human skin. However, common materials used for flexible devices including silicon‐based elastomers and various metals exhibit no resistance to epidermal surface lipids (skin oil and grease), which restricts the long‐term and household usability. Herein, an on‐skin electrode with anti‐epidermal‐surface‐lipid function is reported, which is based on the grafting of a zwitterionic poly(2‐methacryl‐oyloxyethyl, methacryloyl‐oxyethyl, or meth‐acryloyloxyethyl phosphorylcholine) (PMPC) brush on top of gold‐coated poly(dimethylsiloxane) (Au/PDMS). Such an electrode allows the skin‐lipids‐fouled surface to be cleaned by simple water rinsing owing to the superhydrophilic zwitterionic groups. As a proof‐of‐concept, the PMPC‐Au/PDMS electrodes are employed for both electrocardiography (ECG) and electromyography (EMG) recording. The electrodes are able to maintain stable skin‐electrode impedance and good signal‐to noise ratio (SNR) by water rinsing alone. This work provides a material‐based solution to improve the long‐term reusability of on‐skin electronics and offers a unique prospective on developing next generation wearable healthcare devices.
URI: https://hdl.handle.net/10356/148024
ISSN: 0935-9648
DOI: 10.1002/adma.202001130
Rights: This is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at https://doi.org/10.1002/adma.202001130. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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