A Self-Powered Sensor Mimicking Slow- and Fast-Adapting Cutaneous Mechanoreceptors

Kyoung Yong Chun, Young Jun Son, Eun Seok Jeon, Sehan Lee, Chang-Soo Han

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Highly efficient human skin systems transmit fast adaptive (FA) and slow adaptive (SA) pulses selectively or consolidatively to the brain for a variety of external stimuli. The integrated analysis of these signals determines how humans perceive external physical stimuli. Here, a self-powered mechanoreceptor sensor based on an artificial ion-channel system combined with a piezoelectric film is presented, which can simultaneously implement FA and SA pulses like human skin. This device detects stimuli with high sensitivity and broad frequency band without external power. For the feasibility study, various stimuli are measured or detected. Vital signs such as the heart rate and ballistocardiogram can be measured simultaneously in real time. Also, a variety of stimuli such as the mechanical stress, surface roughness, and contact by a moving object can be distinguished and detected. This opens new scientific fields to realize the somatic cutaneous sensor of the real skin. Moreover, this new sensing scheme inspired by natural sensing structures is able to mimic the five senses of living creatures.

Original languageEnglish
JournalAdvanced Materials
DOIs
Publication statusAccepted/In press - 2018 Jan 1

Keywords

  • Adapting
  • Cutaneous
  • Mechanoreceptors
  • Self-powered
  • Sensors

ASJC Scopus subject areas

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

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