Journal
ADVANCED MATERIALS
Volume 20, Issue 18, Pages 3485-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200800657
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- University of California
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Magnetically tunable photonic structures are prepared in alkanol solutions by using silica-modified superparamagnetic Fe3O4 colloids as building blocks. Repulsive electrostatic and solvation forces and magnetically induced attractive forces contribute to the ordering of the Fe3O4@SiO2 colloids. The ability to form tunable photonic structures in nonaqueous solutions allows the fabrication of field-responsive polymer composite films for potential applications as displays and sensors.
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