Magnetoresponsive Microparticles with Nanoscopic Surface Structures for Remote-Controlled Locomotion

Rock and roll: The rotational and translational motion of magnetic Janus particles with nanoscopic surface structure can be controlled by an external magnetic field (see picture). The nanoscopic surface pattern enhances the microscopic motion of the microspheres by inducing strong coupling between r...

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Published inAngewandte Chemie (International ed.) Vol. 49; no. 22; pp. 3786 - 3790
Main Authors Kim, Shin-Hyun, Sim, Jae Young, Lim, Jong-Min, Yang, Seung-Man
Format Journal Article
LanguageEnglish
Published Weinheim Wiley-VCH Verlag 17.05.2010
WILEY-VCH Verlag
WILEY‐VCH Verlag
Subjects
colloids
Colloids - chemistry
Iron - chemistry
Isothiocyanates - chemistry
magnetic properties
Magnetics
Metal Nanoparticles - chemistry
Microfluidic Analytical Techniques
microfluidics
Particle Size
Rotation
Silicon Dioxide - chemistry
Surface Properties
translation
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Summary:Rock and roll: The rotational and translational motion of magnetic Janus particles with nanoscopic surface structure can be controlled by an external magnetic field (see picture). The nanoscopic surface pattern enhances the microscopic motion of the microspheres by inducing strong coupling between rotation and translation. The separation of individual microspheres from the mixture in a microfluidic device is also demonstrated.
Bibliography:http://dx.doi.org/10.1002/anie.201001031
This work was supported by a grant from the Creative Research Initiative Program of the Ministry of Education, Science, and Technology for "Complementary Hybridization of Optical and Fluidic Devices for Integrated Optofluidic Systems." We thank Prof. Howard A. Stone, Princeton University, for helpful discussions.
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Ministry of Education, Science, and Technology
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istex:849FCA219E5C30FB7BB8238975503ED172CAA139
This work was supported by a grant from the Creative Research Initiative Program of the Ministry of Education, Science, and Technology for “Complementary Hybridization of Optical and Fluidic Devices for Integrated Optofluidic Systems.” We thank Prof. Howard A. Stone, Princeton University, for helpful discussions.
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SourceType-Scholarly Journals-1
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content type line 23
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201001031