Remote manipulation of micronanomachines containing magnetic nanoparticles

Juan Wang, Hong Xia, Bin Bin Xu, Li Gang Niu, Dong Wu, Qi Dai Chen, Hong Bo Sun*

*Corresponding author for this work

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Abstract

We report remote manipulation of micronanomachines containing magnetic nanoparticles. Surface-modified Fe3O4 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 Fe3O 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.

Original languageEnglish
Pages (from-to)581-583
Number of pages3
JournalOptics Letters
Volume34
Issue number5
DOIs
Publication statusPublished - 1 Mar 2009
Externally publishedYes

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Wang, J., Xia, H., Xu, B. B., Niu, L. G., Wu, D., Chen, Q. D., & Sun, H. B. (2009). Remote manipulation of micronanomachines containing magnetic nanoparticles. Optics Letters, 34(5), 581-583. https://doi.org/10.1364/OL.34.000581