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Highly Conformable, Transparent Electrodes for Epidermal Electronics.
Kim, Jin-Hoon; Kim, Seung-Rok; Kil, Hye-Jun; Kim, Yu-Chan; Park, Jin-Woo.
Afiliação
  • Kim JH; Department of Materials Science and Engineering , Yonsei University , Seoul 03722 , Korea.
  • Kim SR; Department of Materials Science and Engineering , Yonsei University , Seoul 03722 , Korea.
  • Kil HJ; Biomedical Research Institute, Korea Institute of Science and Technology , Seoul 02792 , Korea.
  • Kim YC; Biomedical Research Institute, Korea Institute of Science and Technology , Seoul 02792 , Korea.
  • Park JW; Department of Materials Science and Engineering , Yonsei University , Seoul 03722 , Korea.
Nano Lett ; 18(7): 4531-4540, 2018 07 11.
Article em En | MEDLINE | ID: mdl-29923729
We present a highly conformable, stretchable, and transparent electrode for application in epidermal electronics based on polydimethylsiloxane (PDMS) and Ag nanowire (AgNW) networks. With the addition of a small amount of a commercially available nonionic surfactant, Triton X, PDMS became highly adhesive and mechanically compliant, key factors for the development of conformable and stretchable substrates. The polar functional groups present in Triton X interacted with the Pt catalyst present in the PDMS curing agent, thereby hindering the cross-linking reaction of PDMS and modulating the mechanical properties of the polymer. Due to the strong interactions that occur between the polar functional groups of Triton X and AgNWs, AgNWs were effectively embedded in the adhesive PDMS (a-PDMS) matrix, and the highly enhanced conformability, mechanical stretchability, and transparency of the a-PDMS matrix were maintained in the resulting AgNW-embedded a-PDMS matrix. Finally, wearable strain and electrocardiogram (ECG) sensors were fabricated from the AgNW-embedded a-PDMS. The a-PDMS-based strain and ECG sensors exhibited significantly improved sensing performances compared with those of the bare PDMS-based sensors because of the better stretchability and conformability to the skin of the former sensors.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Nano Lett Ano de publicação: 2018 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Nano Lett Ano de publicação: 2018 Tipo de documento: Article