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A Soft Stretchable Sensor: Towards Peripheral Nerve Signal Sensing

  • Charles Hamilton (a1) (a2) (a3), Kevin Tian (a4), Jinhye Bae (a4), Canhui Yang (a4) (a5), Gursel Alici (a2) (a6), Geoffrey M. Spinks (a2) (a6), Zhigang Suo (a4) (a7), Joost J. Vlassak (a4) and Marc in het Panhuis (a1) (a2)...

Abstract

We propose a 3D-printable soft, stretchable, and transparent hydrogel-elastomer device that is able to detect simulated ‘nerve’ signals. The signal is passed to a conductive hydrogel electrode through a non-contact method of capacitive coupling through polydimethylsiloxane (PDMS). We demonstrate that the device is able to detect sinusoidal waveforms passed through a simulated ‘nerve’ made from conductive hydrogel over a range of frequencies (1 kHz – 1 MHz). Analysis of signal detection showed a correlation to the electrode contact area and a Vin/Vout of larger than 10%. This provides the framework for the future development of a soft, 3D-printable, capacitive coupling device that can be used as a cuff electrode for detecting peripheral nerve signals.

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References

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