Photoswitchable magnetic layer-by-layer films consisting of azobenzene derivatives and iron oxide nanoparticles

Masayuki Suda, Yasuo Miyazaki, Yuki Hagiwara, Osamu Sato, Seimei Shiratori, Yasuaki Einaga

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The photoswitchable magnetic thin films have been designed by alternate depositions of bipolar amphiphilic azobenzene and Fe3O4 nanoparticles by using the layer-by-layer adsorption technique. In these films, reversible photoisomerizations of the azobenzene chromophore affected the electrostatic interaction between the azobenzene chromophore and the surface of Fe3O4 nanoparticles. As a result, we have succeeded in controlling the magnetization of these films by photoillumination at room temperature.

Original languageEnglish
Pages (from-to)1028-1029
Number of pages2
JournalChemistry Letters
Volume34
Issue number7
DOIs
Publication statusPublished - 2005 Jul 5

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Chromophores
Nanoparticles
Derivatives
Magnetic thin films
Photoisomerization
Coulomb interactions
Magnetization
Adsorption
azobenzene
ferric oxide
Temperature

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Photoswitchable magnetic layer-by-layer films consisting of azobenzene derivatives and iron oxide nanoparticles. / Suda, Masayuki; Miyazaki, Yasuo; Hagiwara, Yuki; Sato, Osamu; Shiratori, Seimei; Einaga, Yasuaki.

In: Chemistry Letters, Vol. 34, No. 7, 05.07.2005, p. 1028-1029.

Research output: Contribution to journalArticle

Suda, Masayuki ; Miyazaki, Yasuo ; Hagiwara, Yuki ; Sato, Osamu ; Shiratori, Seimei ; Einaga, Yasuaki. / Photoswitchable magnetic layer-by-layer films consisting of azobenzene derivatives and iron oxide nanoparticles. In: Chemistry Letters. 2005 ; Vol. 34, No. 7. pp. 1028-1029.
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