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

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26 Citations (Scopus)


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
Issue number7
Publication statusPublished - 2005 Jul 5


ASJC Scopus subject areas

  • Chemistry(all)

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