Synthesis and Light-Induced Surface Potential Observation of Retinal Prosthesis Using Polyethylene Thin Films Immobilized with Photoelectric Dyes

Tetsuya Uchida, Makoto Nitta, Syoko Kanashima

Research output: Contribution to journalArticle

Abstract

Photoelectric dyes that absorb light and convert photon energy to electric potential have previously been shown to stimulate retinal neurons in cultures. As such, we have designed a new type of retinal prosthesis using polyethylene films coupled with photoelectric dye molecules. In this study, the electric potentials on the film were observed using a scanning Kelvin probe microscope under light and dark conditions. As a result, electric potentials were observed on the film, which were dependent on light intensity and wavelength. Furthermore, the electric potentials showed a rapid on-off response to light.
Original languageEnglish
Pages (from-to)261-267
Number of pages7
JournalJournal of Photopolymer Science and Technology
Volume28
Issue number2
DOIs
Publication statusPublished - 2015
Externally publishedYes

Keywords

  • retinal prosthesis
  • photoelectric dye
  • surface potential

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