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All-Organic, Solution-Processed, Extremely Conformal, Mechanically Biocompatible, and Breathable Epidermal Electrodes

Title
All-Organic, Solution-Processed, Extremely Conformal, Mechanically Biocompatible, and Breathable Epidermal Electrodes
Author(s)
Jeong, WooseongPark, YuriGwon, GihyeokSong, JinkyuYoo, SeungsunBae, JihoonKo, Young HwiiChoi, Ji-HyukLee, Sungwon
Issued Date
2021-02
Citation
ACS Applied Materials & Interfaces, v.13, no.4, pp.5660 - 5667
Type
Article
Author Keywords
Conductive polymerNanomesh electrodeBiometric deviceHealth monitoringHydrothermal treatment
Keywords
ON-SKININFLAMMATION-FREEPEDOTPSS FILMSSENSORCONDUCTIVITYTRANSPARENT
ISSN
1944-8244
Abstract
Conformal integration of an epidermal device with the skin, as well as sweat and air permeability, are crucial to reduce stress on biological tissues. Nanofiber-based porous mesh structures (breathable devices) are commonly utilized to prevent skin problems. Noble metals are normally deposited on nanomesh substrates to form breathable electrodes. However, these are expensive and require high-vacuum processes involving time-consuming multistep procedures. Organic materials are suitable alternatives that can be simply processed in solution. We report a simple, cost-effective, mechanically biocompatible, and breathable organic epidermal electrode for biometric devices. Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is sprayed on a nanofiber-mesh structure, treated using only heat and water to enhance its biocompatibility and conductivity, and used as the electrode. The treatment is accomplished using an autoclave, simultaneously reducing the electrical resistance and sterilizing the electrode for practical use. This research can lead to affordable and biocompatible epidermal electrodes with improved suitability for various biomedical applications. © 2020 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/13489
DOI
10.1021/acsami.0c22397
Publisher
American Chemical Society
Related Researcher
  • 이성원 Lee, Sungwon
  • Research Interests Ultrathin Device Fabrication; Bio sensors Development; Functional Material Development
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Department of Physics and Chemistry Bio-Harmonized Device Lab 1. Journal Articles

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