Magnetic SiO(2)/Fe(3)O(4) colloidal crystals

We proposed a novel technique to fabricate colloidal crystals by using monodisperse SiO(2) coated magnetic Fe(3)O(4)(SiO(2)/Fe(3)O(4)) microspheres. The magnetic SiO(2)/Fe(3)O(4) microspheres with a diameter of 700 nm were synthesized in the basic condition with ferric sulfate, ferrous sulfate, tart...

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Published inNanotechnology Vol. 19; no. 5; p. 055701
Main Authors Huang, Chih-Kai, Hou, Chia-Hung, Chen, Chii-Chang, Tsai, Yen-Ling, Chang, Li-Ming, Wei, Hung-Sen, Hsieh, Kuo-Huang, Chan, Chia-Hua
Format Journal Article
LanguageEnglish
Published England 06.02.2008
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Summary:We proposed a novel technique to fabricate colloidal crystals by using monodisperse SiO(2) coated magnetic Fe(3)O(4)(SiO(2)/Fe(3)O(4)) microspheres. The magnetic SiO(2)/Fe(3)O(4) microspheres with a diameter of 700 nm were synthesized in the basic condition with ferric sulfate, ferrous sulfate, tartaric acid and tetraethyl orthosilicate (TEOS) in the reaction system. Monodisperse SiO(2)/Fe(3)O(4) superparamagnetic microspheres have been successfully used to fabricate colloidal crystals under the existing magnetic field.
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ISSN:0957-4484
DOI:10.1088/0957-4484/19/05/055701