期刊
SMALL
卷 4, 期 2, 页码 231-239出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.200700575
关键词
conjugation; coprecipitation; fluorescence; magnetic nanomateriats
类别
资金
- Engineering and Physical Sciences Research Council [EP/C511794/1] Funding Source: researchfish
Water-soluble monodisperse superparamagnetic Fe3O4 nanocrystals decorated with two distinct functional groups are prepared in a single-step procedure by injecting iron precursors into a refluxing aqueous solution of a polymer ligand, trithiol-terminated poly (methacrylic acid) (PMAA-PTTM), bearing both carboxylate and thiol functionalities. The ratio of carboxylic acid groups in the polymer-protecting ligand to the iron precursors plays a key role in determining the particle size and particle size distribution. The surface functionalities of the ligands allow post-synthesis modification of the materials to produce water-soluble fluorescent magnetic nanocrystals.
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