Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 237, Issue -, Pages 49-53Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2016.06.076
Keywords
Electrode/hydrogel hybrid; Conducting polymer; Shape conformable device; Electrophysiological measurements
Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan [25246016, K15K13315]
- Center of Innovation Program (COI), Creation of Innovation Centers for Advanced Interdisciplinary Research Area Program from Japan Science and Technology Agency, JST
- Japan Agency for Medical Research and Development
- Grants-in-Aid for Scientific Research [26286031, 16K12890, 25246016] Funding Source: KAKEN
Ask authors/readers for more resources
An Au film electrode supported by a conductive elastic film was tightly bonded on a stretchable double network hydrogel sheet by means of the conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) grown from the electrode surface into the hydrogel. This electrode/hydrogel composite showed stable resistance of 35 +/- 5 Omega sq(-1) even during successive 20% stretching because of the pre-formed, designed cracks in the Au film. The large interfacial electric double layer capacitance (9.5 +/- 0.3 mF cm(-2)) of the PEDOT adhesive layer at the interface of the layered composite was found to stabilize the electrode potential against external noises, and decrease the electric impedance at the frequency of 5-500 Hz, which is the typical range of electromyographic signals. The electrical robustness and shape-conformability of the composite electrode were demonstrated by monitoring electromyographic signals of the joint of a human forefinger. In addition, it was also demonstrated that an ionic liquid-containing gel (ionogel) serves as a substrate of the composite for longer-term monitoring over 3 days on air-exposed human skin. (C) 2016 Published by Elsevier B.V.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available