Nano-biomimetic cutaneous sensor

Chang Soo Han, Sungsoo Na, Kyung Young Chun

Research output: Contribution to journalConference article

Abstract

Development of low-power artificial sensors inspired by human mechanoreceptors is critical for restoring sensory functions that have been damaged or have deteriorated because of human aging and disability.[1] By means of mechanoreceptors for a variety of external stimuli, the skin's sensory organs generate a receptor potential, transmitted to the brain through the axon.[2] The brain can then distinguish types of external stimuli by means of two typical action potentials: slow adaption (SA) and fast adaption (FA) [3]. Here, we presents a self-powered mechanoreceptor nano sensor based on an artificial ion channel system combined with a piezoelectric film that can simultaneously implement FA and SA pulses like human skin. This device detects the stimuli with high sensitivity and broad frequency band without external power [4]. We applied this device to various applications such as reading braille, grabbing a sliding cup, identifying the surface roughness, and monitoring the blood pulse based on the fast-and slow-adapting signals. And we found that these two signals are very critical to recognize the kind of stimulus on a skin system. It opens the new scientific fields to realize the somatic cutaneous sensor of the real skin.

Original languageEnglish
Article number144
JournalWorld Congress on Recent Advances in Nanotechnology
DOIs
Publication statusPublished - 2018
Event3rd World Congress on Recent Advances in Nanotechnology, RAN 2018 -
Duration: 2018 Apr 102018 Apr 12

ASJC Scopus subject areas

  • Biotechnology
  • Biomedical Engineering
  • Mechanical Engineering
  • Management, Monitoring, Policy and Law
  • Pollution
  • Biomaterials
  • Modelling and Simulation
  • Histology

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