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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 5 — May. 5, 2009

Remote manipulation of micronanomachines containing magnetic nanoparticles

Juan Wang, Hong Xia, Bin-Bin Xu, Li-Gang Niu, Dong Wu, Qi-Dai Chen, and Hong-Bo Sun  »View Author Affiliations

Optics Letters, Vol. 34, Issue 5, pp. 581-583 (2009)

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We report remote manipulation of micronanomachines containing magnetic nanoparticles. Surface-modified Fe 3 O 4 nanocrystals were synthesized as doping agents of the photopolymerizable resin, which was pinpoint written by femtosecond laser-induced two-photon photopolymerization to create microsprings. Owing to the nature of superparamagnetism of Fe 3 O 4 nanoparticles, force exerted to the microsprings relies sensitively on the field gradient of the external ferromagnet, and various motions like elongation, bending, and swing are achieved in a well-controllable remote manner. As a noncontact, sensitive, easy, and environmentally friendly approach, the magnetic driving of micronanomachines may play an important role for nano and biological applications.

© 2009 Optical Society of America

OCIS Codes
(160.5470) Materials : Polymers
(220.4000) Optical design and fabrication : Microstructure fabrication

ToC Category:
Optical Design and Fabrication

Original Manuscript: January 10, 2009
Revised Manuscript: January 14, 2009
Manuscript Accepted: January 14, 2009
Published: February 23, 2009

Virtual Issues
Vol. 4, Iss. 5 Virtual Journal for Biomedical Optics

Juan Wang, Hong Xia, Bin-Bin Xu, Li-Gang Niu, Dong Wu, Qi-Dai Chen, and Hong-Bo Sun, "Remote manipulation of micronanomachines containing magnetic nanoparticles," Opt. Lett. 34, 581-583 (2009)

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