Publications Archives – Page 2 of 4

SiC protective coating for photovoltaic retinal prosthesis

SiC coatings demonstrating no erosion in accelerated aging test for 112 d at 87 °C, equivalent to about 10 years in vivo, can offer effective protection of the implants. Photovoltaic retinal prostheses with plasma-enhanced, chemically vapor deposited (PECVD) amorphous silicon carbide (SiC:H) SiC coatings exhibited effective protection from erosion during the 4 month follow-up in vivo.

Xin Lei, Sheryl Kane, Stuart Cogan, Henri Lorach, Ludwig Galambos, Philip Huie, Keith Mathieson, Theodore Kamins, James Harris and Daniel Palanker
Published 21 June 2016 • © 2016 IOP Publishing LtdJournal of Neural Engineering, Volume 13, Number 4

admin2019-09-11T17:32:55+02:00June 21st, 2016|Publications|

Optimization of return electrodes in neurostimulating arrays

Arrays with local return electrodes exhibit improved field confinement and can elicit stronger network-mediated retinal response compared to those with a common remote return. Accurate modeling of multielectrode arrays helps optimize the electrode configuration to maximize the spatial resolution, contrast and dynamic range of retinal prostheses.Thomas Flores, Georges Goetz, Xin Lei and Daniel Palanker

Published 21 April 2016 • © IOP Publishing Ltd Journal of Neural Engineering, Volume 13, Number 3

admin2019-09-11T17:32:58+02:00June 1st, 2016|Publications|

Implantation of Modular Photovoltaic Subretinal Prosthesis : OSLI Retina Journal

Establish the surgical procedure for subretinal implantation of multiple photovoltaic arrays for the restoration of sight. Multiple silicon photovoltaic arrays of 1 mm in diameter and 30 µm in thickness were implanted subretinally via single retinotomy in rabbits.

Dae Yeong Lee, MD; Henri Lorach, PhD; Phil Huie, MSc; Daniel Palanker, PhDOphthalmic Surgery, Lasers and Imaging Retina February 2016 – Volume 47 · Issue 2: 171-174 DOI: 10.3928/23258160-20160126-11

admin2019-09-11T17:33:01+02:00February 13th, 2016|Publications|

Retinal safety of near infrared radiation in photovoltaic restoration of sight

Photovoltaic restoration of sight requires intense near-infrared light to effectively stimulate retinal neurons. We assess the retinal safety of such radiation with and without the retinal implant.

H. Lorach, J. Wang, D. Y. Lee, R. Dalal, P. Huie, and D. Palanker

1 Jan 2016 | Vol. 7, No. 1 | DOI:10.1364/BOE.7.000013 | BIOMEDICAL OPTICS EXPRESS

admin2019-09-11T17:33:02+02:00December 4th, 2015|Publications|

PRIMA – Interactions of Prosthetic and Natural Vision in Animals With Local Retinal Degeneration

Prosthetic restoration of partial sensory loss leads to interactions between artificial and natural inputs. Ideally, the rehabilitation should allow perceptual fusion of the two modalities. Here we studied the interactions between normal and prosthetic vision in a rodent model of local retinal degeneration.

Henri Lorach; Xin Lei; Ludwig Galambos; Theodore Kamins; Keith Mathieson; Roopa Dalal; Philip Huie; James Harris; Daniel Palanker

Investigative Ophthalmology & Visual Science November 2015, Vol.56, 7444-7450. doi:10.1167/iovs.15-17521

admin2019-09-11T17:33:03+02:00December 2nd, 2015|Publications|

ATIS – Retinomorphic Event-Based Vision Sensors: Bioinspired Cameras With Spiking Output

Retinomorphic Event-Based Vision Sensors: Bioinspired Cameras With Spiking Output

Posch, C.; Serrano-Gotarredona, T.; Linares-Barranco, B.; Delbruck, T.

Proceedings of the IEEE , vol.102, no.10, pp.1470,1484, Oct. 2014

admin2019-09-11T17:33:41+02:00April 27th, 2015|Publications|

Photovoltaic restoration of sight with high visual acuity

PRIMA – Photovoltaic restoration of sight with high visual acuity :

Henri Lorach, Georges Goetz, Richard Smith, Xin Lei, Yossi Mandel, Theodore Kamins, Keith Mathieson, Philip Huie, James Harris, Alexander Sher & Daniel Palanker.

Nature Medicine (2015) doi:10.1038/nm.3851

admin2019-09-11T17:33:40+02:00April 27th, 2015|Publications|

Functional connectivity of visual cortex in the blind follows retinotopic organization principles – BRAIN

Functional connectivity of visual cortex in the blind follows retinotopic organization principles.

E. Striem-Amit et al. BRAIN A journal of Neurology doi:10.1093/brain/awv083 BRAIN 2015: 138; 1679-1695

admin2019-09-11T17:33:26+02:00April 13th, 2015|Publications|

PRIMA – Photovoltaic Pixels for Neural Stimulation: Circuit Models and Performance

Photovoltaic Pixels for Neural Stimulation: Circuit Models and Performance:

D. Boinagrov, X. Lei, G. Goetz, T.I. Kamins, K. Mathieson, L. Galambos, J.S. Harris, and D. Palanker.

IEEE Trans. Biomed. Circuits and Systems (2015) [Epub ahead of print]

admin2019-09-11T17:33:36+02:00January 27th, 2015|Publications|

ATIS – Neuromorphic engineering systems and applications. A snapshot of neuromorphic systems engineering

The papers show the results of feasibility studies of new concepts, as well as neuromorphic systems that have been constructed from more established neuromorphic technologies. Five papers exploit neuromorphic dynamic vision sensor (DVS) events that mimic the asynchronous and sparse spikes on biology’s optic nerve fiber.

Tobi Delbruck, André van Schaik and Jennifer Hasler; Frontiers in Neuroscience, 19 December 2014 | doi : 10.3389/fnins.2014.00424

admin2019-09-11T17:33:01+02:00December 19th, 2014|Publications|