Photocurrent generation properties of Histag-photosystem II immobilized on nanostructured gold electrode

Nao Terasaki, Masako Iwai, Noritaka Yamamoto, Takashi Hiraga, Sunao Yamada, Yasunori Inoue

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

It is well known that photosystem II (PSII) can produce electrons, oxygen, and protons simultaneously via a water-splitting photoreaction. These photochemical properties are expected to exhibit photoconductive function for PSII. In the present study, we have first observed a stable photocurrent due to the photoexcitation of PSII and the subsequent water-splitting reaction, by successfully immobilizing PSII on the self-assembled monolayer (SAM) of a nickel-nitrilotriacetic acid complex (Ni-NTA) prepared on a gold surface via a polyhistidine tag (Histag) as a linker molecule. We have further succeeded in the fabrication of PSII-gold nanoparticle multistructures on the surface of gold electrode, and significant enhancement of photocurrents was achieved due to increased number of immobilized PSII.

Original languageEnglish
Pages (from-to)2553-2557
Number of pages5
JournalThin Solid Films
Volume516
Issue number9
DOIs
Publication statusPublished - Mar 3 2008

Fingerprint

Photosystem II Protein Complex
Photocurrents
Gold
photocurrents
water splitting
gold
Electrodes
electrodes
Photoexcitation
Self assembled monolayers
photoexcitation
Water
Protons
Nickel
nickel
Nanoparticles
Fabrication
nanoparticles
acids
fabrication

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

Photocurrent generation properties of Histag-photosystem II immobilized on nanostructured gold electrode. / Terasaki, Nao; Iwai, Masako; Yamamoto, Noritaka; Hiraga, Takashi; Yamada, Sunao; Inoue, Yasunori.

In: Thin Solid Films, Vol. 516, No. 9, 03.03.2008, p. 2553-2557.

Research output: Contribution to journalArticle

Terasaki, N, Iwai, M, Yamamoto, N, Hiraga, T, Yamada, S & Inoue, Y 2008, 'Photocurrent generation properties of Histag-photosystem II immobilized on nanostructured gold electrode', Thin Solid Films, vol. 516, no. 9, pp. 2553-2557. https://doi.org/10.1016/j.tsf.2007.04.127
Terasaki, Nao ; Iwai, Masako ; Yamamoto, Noritaka ; Hiraga, Takashi ; Yamada, Sunao ; Inoue, Yasunori. / Photocurrent generation properties of Histag-photosystem II immobilized on nanostructured gold electrode. In: Thin Solid Films. 2008 ; Vol. 516, No. 9. pp. 2553-2557.
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AU - Inoue, Yasunori

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