News & Events

'Ionic direct current (iDC) as a novel form of neural interface'

Neuroscience & Non-Communicable Diseases 2021 Seminar Series

Speaker: Dr. Felix Aplin, School of Medical Sciences, UNSW


Dr. Felix Aplin is a postdoctoral fellow in the lab of Prof. Moalem-Taylor at the School of Medical Sciences, UNSW. He completed his PhD at the University of Melbourne in 2015 as part of the Bionic Eye Project, and subsequently accepted a postdoc position at the Machine Bio-interface Lab at Johns Hopkins University in Baltimore, USA. He has recently returned from overseas to take up a CIB position on an NHMRC Ideas grant investigating the effects of direct current neuromodulation on chronic pain.


Neural prostheses are devices that interface with the nervous system to replace or enhance normal function. Traditional neural prostheses such as cochlear implants use charge-balanced alternating waveforms (pulses) to stimulate neural tissue. While these devices have been widely successful in some neural systems, they have strict limitations which prevent their effective adoption in others. One solution to expand the capability of neural prostheses is to use non-alternating (“direct”) current waveforms. This enables more complex control of neuronal firing including naturalistic excitation/inhibition, conduction block, sensitisation, and adjustment of conduction velocity. Normally these waveforms are electrochemically unsafe. However, our collaborators have recently developed a way to deliver direct current waveforms via an ionic device that mitigates or eliminates electrode corrosion and electrolysis. Here we demonstrate that this form of neural interface holds promise as a novel therapeutic tool in several neural systems, with benefits above conventional approaches.

All welcome!

Enquiries: Lindsay Wu

File Attachment: 
Event Date: 
Friday, 26 March 2021 - 3:00pm
Online via Microsoft Teams meeting
Event Type: 
Booking deadline: