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Semiconductor nanorod-carbon nanotube biomimetic films for wire-free photostimulation of blind retinas.

ABSTRACT: We report the development of a semiconductor nanorod-carbon nanotube based platform for wire-free, light induced retina stimulation. A plasma polymerized acrylic acid midlayer was used to achieve covalent conjugation of semiconductor nanorods directly onto neuro-adhesive, three-dimensional carbon nanotube surfaces. Photocurrent, photovoltage, and fluorescence lifetime measurements validate efficient charge transfer between the nanorods and the carbon nanotube films. Successful stimulation of a light-insensitive chick retina suggests the potential use of this novel platform in future artificial retina applications.

SUBMITTER: Bareket L

PROVIDER: S-EPMC4367200 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature

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Semiconductor nanorod-carbon nanotube biomimetic films for wire-free photostimulation of blind retinas.

Bareket Lilach L Waiskopf Nir N Rand David D Lubin Gur G David-Pur Moshe M Ben-Dov Jacob J Roy Soumyendu S Eleftheriou Cyril C Sernagor Evelyne E Cheshnovsky Ori O Banin Uri U Hanein Yael Y

Nano letters 20141031 11

We report the development of a semiconductor nanorod-carbon nanotube based platform for wire-free, light induced retina stimulation. A plasma polymerized acrylic acid midlayer was used to achieve covalent conjugation of semiconductor nanorods directly onto neuro-adhesive, three-dimensional carbon nanotube surfaces. Photocurrent, photovoltage, and fluorescence lifetime measurements validate efficient charge transfer between the nanorods and the carbon nanotube films. Successful stimulation of a l ...[more]

PMID: 25350365

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