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Ionotactile Stimulation: Nonvolatile Ionic Gels for Human–Machine Interfaces

Year: 2018
Type: article
Abstract: We report the application of a nonvolatile ionic gel as a soft, conductive interface for electrotactile stimulation. Materials characterization reveals that, compared to a conventional ionic hydrogel, a glycerol-containing ionic gel does not dry out in air, has better adhesion to skin, and exhibits a similar impedance spectrum in the range of physiological frequencies. Moreover, psychophysical experiments reveal that the nonvolatile gel also exhibits a wider window of comfortable electrotactile stimulation. Finally, a simple pixelated device is fabricated to demonstrate spatial resolution of the haptic signal.
Source: ACS Omega
DOI: 10.1021/acsomega.7b01773
Authors: Samuel E. Root, Cody W. Carpenter, Laure V. Kayser, Daniel Rodriquez, Daniel M. Davies, Shen Wang, Siew Ting M. Tan, Ying Shirley Meng, Darren J. Lipomi
Language: English
Open Access status: gold
Estimated APC paid: $1,935
Funders: American Honda Motor, Qualcomm, Dexcom, Saudi Basic Industries Corporation, Samsung, NIH Office of the Director, National Institute of Biomedical Imaging and Bioengineering
OpenAlex ID: W2783948090
FWCI: 2.382
Cites: 27
Cited by: 31
Related to: 10