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

Lilach Bareket, Nir Waiskopf, David Rand, Gur Lubin, Moshe David-Pur, Jacob Ben-Dov, Soumyendu Roy, Cyril Eleftheriou, Evelyne Sernagor, Ori Cheshnovsky, Uri Banin, Yael Hanein

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)6685-6692
Number of pages8
JournalNano Letters
Volume14
Issue number11
DOIs
StatePublished - 12 Nov 2014

Keywords

  • Neural photostimulation
  • carbon nanotubes
  • neural prosthesis
  • plasma polymerization
  • quantum rods
  • retinal implant

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