Student: Cami Rowan
Project Mentors: Dr. James Abbas – SBHSE
Oliver Graudejus – BMSEED LLC
Dr. Stephen Helms Tillery – SBHSE
YouTube Link: View the video link below before joining the zoom meeting
Zoom Link: https://asu.zoom.us/j/76349096822
Zoom meeting time: 9am - 11am
Abstract
Bioelectric therapy relies heavily on implantable cuff electrodes to direct and decipher peripheral nerve signals. Traditional cuff electrodes can be limited in their size scalability, circumferential contact with the nerve, and comparable biomechanics to nerve tissue. This study proposes a novel cuff electrode design that combines soft and stretchable microelectrode arrays with 3D printed nanoclips to improve upon current designs. This design will allow for more reliable contact with the nerve epineurium while minimizing damage to the nerve and electrode during chronic peripheral nerve interfacing. To simulate in vivo implantation, electromechanical testing was performed to show that electrode resistance successfully recovers after applied strain and electrode impedance is not significantly affected by bending the leads. Additionally, Pt black electroplating yielded low electrode impedance for recording neural signals with little noise interference. Overall, we achieved a multi-channel, low impedance stretchable electrode fitted to a highly customizable nanoclip for more stable and reliable chronic peripheral nerve interfacing.