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

  • Bareket L
  • Waiskopf N
  • Rand D
 et al. 
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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.

Author-supplied keywords

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

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