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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
Authors
Jeong, WooseongPark, YuriGwon, GihyeokSong, JinkyuYoo, SeungsunBae, JihoonKo, Young HwiiChoi, Ji-HyukLee, Sungwon
DGIST Authors
Jeong, Wooseong; Park, Yuri; Gwon, Gihyeok; Song, Jinkyu; Yoo, Seungsun; Bae, Jihoon; Ko, Young Hwii; Choi, Ji-Hyuk; Lee, Sungwon
Issue Date
2021-01
Citation
ACS Applied Materials and Interfaces, 13(4), 5660-5667
Type
Article
Author Keywords
Conductive polymerNanomesh electrodeBiometric deviceHealth monitoringHydrothermal treatment
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
  • Author Lee, Sungwon Bio-Harmonized Device Lab
  • Research Interests Ultrathin Device Fabrication; Bio sensors Development; Functional Material Development
Files:
There are no files associated with this item.
Collection:
Department of Physics and ChemistryBio-Harmonized Device Lab1. Journal Articles


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