Photoswitchable magnetic nanoparticles of Prussian blue with amphiphilic azobenzene

Minori Taguchi, Koji Yamada, Koji Suzuki, Osamu Sato, Yasuaki Einaga

Research output: Contribution to journalArticlepeer-review

68 Citations (Scopus)


A novel type of photocontrollable Prussian blue (PB) magnetic nanoparticle has been designed and prepared by using the reverse micelle technique. These magnetic nanoparticles possess a well-organized nanoscale structure. Reversible photoisomerization of azobenzene chromophores realized photoswitching of the magnetization. The photoisomerization of the composite materials was accompanied by a geometrically confined structural change within the reverse micelles, as reflected by changes in the dipole moment and the electrostatic field. As a result, the magnetization values could be switched reversibly by using alternating UV and visible light illumination.

Original languageEnglish
Pages (from-to)4554-4559
Number of pages6
JournalChemistry of Materials
Issue number17
Publication statusPublished - 2005 Aug 23

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry


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