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. 2015 Jan 27;27(4):634-40.
doi: 10.1002/adma.201403807. Epub 2014 Oct 30.

Highly skin-conformal microhairy sensor for pulse signal amplification

Changhyun Pang  1 , Ja Hoon Koo, Amanda Nguyen, Jeffrey M Caves, Myung-Gil Kim, Alex Chortos, Kwanpyo Kim, Paul J Wang, Jeffrey B-H Tok, Zhenan Bao
Affiliations

Highly skin-conformal microhairy sensor for pulse signal amplification

Changhyun Pang et al. Adv Mater. .

Abstract

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.

Keywords: biosensors; flexible electronics; microhairs; pulsation.

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