Highly skin-conformal microhairy sensor for pulse signal amplification

Changhyun Pang, Ja Hoon Koo, Amanda Nguyen, Jeffrey M. Caves, Myung Gil Kim, Alex Chortos, Kwanpyo Kim, Paul J. Wang, Jeffrey B.H. Tok, Zhenan Bao

Research output: Contribution to journalArticle

283 Citations (Scopus)


A bioinspired microhairy sensor is developed to enable ultraconformability on nonflat surfaces and significant enhancement in the signal-to-noise ratio of the retrieved signals. The device shows ≈12 times increase in the signal-to-noise ratio in the generated capacitive signals, allowing the ultraconformal microhair pressure sensors to be capable of measuring weak pulsations of internal jugular venous pulses stemming from a human neck. (Figure Presented).

Original languageEnglish
Pages (from-to)634-640
Number of pages7
JournalAdvanced Materials
Issue number4
Publication statusPublished - 2015 Jan 27


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Pang, C., Koo, J. H., Nguyen, A., Caves, J. M., Kim, M. G., Chortos, A., Kim, K., Wang, P. J., Tok, J. B. H., & Bao, Z. (2015). Highly skin-conformal microhairy sensor for pulse signal amplification. Advanced Materials, 27(4), 634-640. https://doi.org/10.1002/adma.201403807