• 文献标题:   Graphene coated textile based highly flexible and washable sports bra for human health monitoring
  • 文献类型:   Article
  • 作  者:   SHATHI MA, CHEN MZ, KHOSO NA, RAHMAN MT, BHATTACHARJEE B
  • 作者关键词:   graphene, conductive etextile, electrocardiograph, pulse rate, sensor, dyeing
  • 出版物名称:   MATERIALS DESIGN
  • ISSN:   0264-1275 EI 1873-4197
  • 通讯作者地址:   Zhejiang Sci Tech Univ
  • 被引频次:   1
  • DOI:   10.1016/j.matdes.2020.108792
  • 出版年:   2020

▎ 摘  要

In this research work, graphene-based highly, conductive, flexible, washable, and breathable textile electrodes have been developed using the pad-dry-cure method. The results show that the electrical conductivity of the graphene-coated textile electrodes was significantly improved from 3.5 M Omega to 400 +/- 5.0 k Omega for 12 padding passes. The deposition of poly(3,4-ethylenedioxythiophene) polystyrene sulphonate (PEDOT:PSS) was acquired on reduced graphene oxide (rGO) coated substrate using layer by layer (LbL) technique. The resultant electrodes showed decreased sheet resistance from 150 to 50 k Omega for PEDOT:PSS with a low impedance of 40-150 Hz over the electric potential of 1.0 mV for the detection of high-quality electrocardiograms (ECG) and pulse rate response in different conditions such as rest, walking and running. Consequently, the effect of post-treatment was also analyzed using 5.0 wt% of ethylene glycol (EG) and dimethyl sulfoxide (DMSO), respectively. The sheet resistance was further decreased from 40 k Omega to 130 +/- 0.5 Omega, which is appropriate for the detection of highly sensitive pulse rate response. The study demonstrates that the pad-dry-cure method can potentially be used for the development of graphene-coated wearable electronic textiles for biomedical and health monitoring devices. (c) 2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http:// creativecommons.org/licenses/by-nc-nd/4.0/).