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 journalArticlepeer-review

1 Citation (Scopus)

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 - Aug 19 2015

Keywords

  • Photoelectric dye
  • Retinal prosthesis
  • Surface potential

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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