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Ionotactile Stimulation: Nonvolatile Ionic Gels for Human-Machine Interfaces.

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.

SUBMITTER: Root SE

PROVIDER: S-EPMC5793030 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature

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Ionotactile Stimulation: Nonvolatile Ionic Gels for Human-Machine Interfaces.

Root Samuel E SE Carpenter Cody W CW Kayser Laure V LV Rodriquez Daniel D Davies Daniel M DM Wang Shen S Tan Siew Ting M STM Meng Ying Shirley YS Lipomi Darren J DJ

ACS omega 20180119 1

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 ...[more]

PMID: 29399651

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