rss
11-12-2014, 09:30 PM
Artificial Semiconductor Wireless Retina Already Proving Itself in Lab Study
http://cdn.medgadget.com/wp-content/uploads/2014/11/fj02ee.png
Researchers from*Tel Aviv University, the Hebrew University of Jerusalem, Israel, and Newcastle University have created a proof of concept artificial retina that may one day help treat a number of eye diseases, including age-related macular degeneration. The device is made of semiconductor na**rod-carbon na**tubes and doesn’t have*any metal wire components. The resulting film is both flexible and light sensitive, allowing it to be shaped into the form of a natural retina.
The researchers tested the new device on chicks whose retinas were still **t light sensitive, and showed that the artificial retina was able to induce neuronal activity in response to light.
Some details from the study abstract in Na** Letters:
A plasma polymerized acrylic acid midlayer was used to achieve covalent conjugation of semiconductor na**rods directly onto neuro-adhesive, three-dimensional carbon na**tube surfaces. Photocurrent, photovoltage, and fluorescence lifetime measurements validate efficient charge transfer between the na**rods and the carbon na**tube films. Successful stimulation of a light-insensitive chick retina suggests the potential use of this **vel platform in future artificial retina applications.
Study in Na** Letters:*Semiconductor Na**rod–Carbon Na**tube Biomimetic Films for Wire-Free Photostimulation of Blind Retinas… (http://pubs.acs.org/doi/abs/10.1021/nl5034304)
Press release:*Artificial retina could someday help restore vision… (http://phys.org/news/2014-11-artificial-retina-vision.html)
http://feeds.feedburner.com/~ff/Medgadget?d=yIl2AUoC8zA (http://feeds.feedburner.com/~ff/Medgadget?a=C6-1rGzSPAg:vgNKwihxZuE:yIl2AUoC8zA) http://feeds.feedburner.com/~ff/Medgadget?d=qj6IDK7rITs (http://feeds.feedburner.com/~ff/Medgadget?a=C6-1rGzSPAg:vgNKwihxZuE:qj6IDK7rITs) http://feeds.feedburner.com/~ff/Medgadget?i=C6-1rGzSPAg:vgNKwihxZuE:gIN9vFwOqvQ (http://feeds.feedburner.com/~ff/Medgadget?a=C6-1rGzSPAg:vgNKwihxZuE:gIN9vFwOqvQ)
http://feeds.feedburner.com/~r/Medgadget/~4/C6-1rGzSPAg
http://cdn.medgadget.com/wp-content/uploads/2014/11/fj02ee.png
Researchers from*Tel Aviv University, the Hebrew University of Jerusalem, Israel, and Newcastle University have created a proof of concept artificial retina that may one day help treat a number of eye diseases, including age-related macular degeneration. The device is made of semiconductor na**rod-carbon na**tubes and doesn’t have*any metal wire components. The resulting film is both flexible and light sensitive, allowing it to be shaped into the form of a natural retina.
The researchers tested the new device on chicks whose retinas were still **t light sensitive, and showed that the artificial retina was able to induce neuronal activity in response to light.
Some details from the study abstract in Na** Letters:
A plasma polymerized acrylic acid midlayer was used to achieve covalent conjugation of semiconductor na**rods directly onto neuro-adhesive, three-dimensional carbon na**tube surfaces. Photocurrent, photovoltage, and fluorescence lifetime measurements validate efficient charge transfer between the na**rods and the carbon na**tube films. Successful stimulation of a light-insensitive chick retina suggests the potential use of this **vel platform in future artificial retina applications.
Study in Na** Letters:*Semiconductor Na**rod–Carbon Na**tube Biomimetic Films for Wire-Free Photostimulation of Blind Retinas… (http://pubs.acs.org/doi/abs/10.1021/nl5034304)
Press release:*Artificial retina could someday help restore vision… (http://phys.org/news/2014-11-artificial-retina-vision.html)
http://feeds.feedburner.com/~ff/Medgadget?d=yIl2AUoC8zA (http://feeds.feedburner.com/~ff/Medgadget?a=C6-1rGzSPAg:vgNKwihxZuE:yIl2AUoC8zA) http://feeds.feedburner.com/~ff/Medgadget?d=qj6IDK7rITs (http://feeds.feedburner.com/~ff/Medgadget?a=C6-1rGzSPAg:vgNKwihxZuE:qj6IDK7rITs) http://feeds.feedburner.com/~ff/Medgadget?i=C6-1rGzSPAg:vgNKwihxZuE:gIN9vFwOqvQ (http://feeds.feedburner.com/~ff/Medgadget?a=C6-1rGzSPAg:vgNKwihxZuE:gIN9vFwOqvQ)
http://feeds.feedburner.com/~r/Medgadget/~4/C6-1rGzSPAg