Supercrystalline Colloidal Particles from Artificial Atoms

In this paper, we report an approach for using solvophobic interactions to synthesize well-defined colloidal superparticles from nonpolar-solvent-dispersible Fe3O4 nanoparticle artificial atoms. These colloidal superparticles possess a “single-supercrystal” structure, of which Fe3O4 artificial atoms...

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Published inJournal of the American Chemical Society Vol. 129; no. 46; pp. 14166 - 14167
Main Authors Zhuang, Jiaqi, Wu, Huimeng, Yang, Yongan, Cao, Y. Charles
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 21.11.2007
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Summary:In this paper, we report an approach for using solvophobic interactions to synthesize well-defined colloidal superparticles from nonpolar-solvent-dispersible Fe3O4 nanoparticle artificial atoms. These colloidal superparticles possess a “single-supercrystal” structure, of which Fe3O4 artificial atoms occupy the lattice points of a face-centered cubic superlattice. In addition, these superparticles exhibit superlattice fringes under a low-resolution TEM, providing an interesting analogue to the lattice fringes of colloidal nanocrystals under a high-resolution TEM. Moreover, these superparticles can be further assembled into close-packed solid structures, demonstrating their role as a new type of building block in nanoscience.
Bibliography:istex:8D02AC05DE86468120BFCBF179B5C95A2DBC80D9
ark:/67375/TPS-PTJV2S7X-F
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ISSN:0002-7863
1520-5126
DOI:10.1021/ja076494i