Ionotactile Stimulation: Nonvolatile Ionic Gels for Human–Machine Interfaces | Zendy

Samuel E. Root | Zendy; Cody W. Carpenter | Zendy; Laure V. Kayser | Zendy; Daniel Rodriquez | Zendy; Daniel Davies | Zendy; Shen Wang | Zendy; Siew Ting Melissa Tan | Zendy; Ying Shirley Meng | Zendy; Darren J. Lipomi | Zendy

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Ionotactile Stimulation: Nonvolatile Ionic Gels for Human–Machine Interfaces

Author(s) -

Samuel E. Root,

Cody W. Carpenter,

Laure V. Kayser,

Daniel Rodriquez,

Daniel Davies,

Shen Wang,

Siew Ting Melissa Tan,

Ying Shirley Meng,

Darren J. Lipomi

Publication year - 2018

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.7b01773

Subject(s) - ionic bonding , materials science , adhesion , nanotechnology , signal (programming language) , stimulation , ion , computer science , chemistry , composite material , organic chemistry , neuroscience , biology , programming language

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.

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