Title :
Optoelectronic microarrays for retinal prosthesis
Author :
Degenaar, P. ; Grossman, N. ; Berlinguer-Palmini, R. ; McGovern, B. ; Pohrer, V. ; Drakakis, E. ; Dawson, M. ; Toumazou, C. ; Burrone, J. ; Nikolic, K. ; Neil, M.
Abstract :
In this work we demonstrate the use of optoelectronic Gallium Nitride LED micro arrays for optical neural stimulation. We demonstrate the ability to control these sufficiently to transfer a spike coded `image´ to arrays of channelrhodopsin-2 photosensitized cells. We also show how this initial work is scalable from in-vitro towards a long term optoelectronic system for optogenetic retinal prosthesis.
Keywords :
III-V semiconductors; eye; gallium compounds; light emitting diodes; prosthetics; GaN; LED micro arrays; gallium nitride; optical neural stimulation; optoelectronic microarrays; photosensitized cells; retinal prosthesis; Biomedical engineering; Biomedical optical imaging; Educational institutions; In vitro; Neurons; Optical arrays; Optical pumping; Prosthetics; Retina; Stimulated emission; ChR2; GaN; LED; Retina prosthesis; component; opsin; optoelectronic; optogenetic;
Conference_Titel :
Biomedical Circuits and Systems Conference, 2009. BioCAS 2009. IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4917-0
Electronic_ISBN :
978-1-4244-4918-7
DOI :
10.1109/BIOCAS.2009.5372052
