Ultrathin epidermal strain sensor based on an elastomer nanosheet with an inkjet-printed conductive polymer

Yuma Tetsu, Kento Yamagishi, Akira Kato, Yuya Matsumoto, Mariko Tsukune, Yo Kobayashi, Masakatsu G. Fujie, Shinji Takeoka, Toshinori Fujie

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

To minimize the interference that skin-contact strain sensors cause natural skin deformation, physical conformability to the epidermal structure is critical. Here, we developed an ultrathin strain sensor made from poly(3, 4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) inkjetprinted on a polystyrene-polybutadiene-polystyrene (SBS) nanosheet. The sensor, whose total thickness and gauge factor were ∼1 μm and 0.73 ± 0.10, respectively, deeply conformed to the epidermal structure and successfully detected the small skin strain (∼2%) while interfering minimally with the natural deformation of the skin. Such an epidermal strain sensor will open a new avenue for precisely detecting the motion of human skin and artificial soft-robotic skin.

Original languageEnglish
Article number087201
JournalApplied Physics Express
Volume10
Issue number8
DOIs
Publication statusPublished - 2017 Aug 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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    Tetsu, Y., Yamagishi, K., Kato, A., Matsumoto, Y., Tsukune, M., Kobayashi, Y., Fujie, M. G., Takeoka, S., & Fujie, T. (2017). Ultrathin epidermal strain sensor based on an elastomer nanosheet with an inkjet-printed conductive polymer. Applied Physics Express, 10(8), [087201]. https://doi.org/10.7567/APEX.10.087201