Ionic liquid gel-assisted electrodes for long-term cutaneous recordings

Adv Healthc Mater. 2014 Sep;3(9):1377-80. doi: 10.1002/adhm.201300614. Epub 2014 Mar 4.

Abstract

The integration of an ionic liquid gel on conformal electrodes is investigated for applications in long-term cutaneous recordings. Electrodes made of Au and the conducting polymer PEDOT:PSS coated with the gel show a low impedance in contact with the skin that maintains a steady value over several days, paving the way for non-invasive, long-term monitoring of human electrophysiological activity.

Keywords: conducting polymers; cutaneous recordings; healthcare materials; ionic liquids; organic bioelectronics.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Electric Impedance*
  • Electrodes*
  • Electrophysiological Phenomena / physiology
  • Electrophysiology / instrumentation*
  • Equipment Design
  • Forearm / physiology
  • Gels / chemistry*
  • Gold / chemistry
  • Humans
  • Ionic Liquids / chemistry*
  • Polystyrenes / chemistry
  • Thiophenes / chemistry

Substances

  • Gels
  • Ionic Liquids
  • Polystyrenes
  • Thiophenes
  • poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)
  • Gold