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

doi:10.1246/cl.2005.1028

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

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	1028-1029
Number of pages	2
Journal	Chemistry Letters
Volume	34
Issue number	7
DOIs	https://doi.org/10.1246/cl.2005.1028
Publication status	Published - 2005 Jul 5

ASJC Scopus subject areas

Chemistry(all)

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10.1246/cl.2005.1028

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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.",

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AU - Suda, Masayuki

AU - Miyazaki, Yasuo

AU - Hagiwara, Yuki

AU - Sato, Osamu

AU - Shiratori, Seimei

AU - Einaga, Yasuaki

PY - 2005/7/5

Y1 - 2005/7/5

N2 - 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.

AB - 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.

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

Abstract

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