期刊
MICROCHIMICA ACTA
卷 182, 期 13-14, 页码 2293-2298出版社
SPRINGER WIEN
DOI: 10.1007/s00604-015-1571-z
关键词
Gold nanoparticles; Iron oxide nanoparticles; Dimers; Hetero-dimers; Mono-functionalisation
资金
- Australian Microscopy and Microanalysis Research Facility (AMMRF)
- Australian Research Council Centre of Excellence in Convergent Bio-Nano Science and Technology [CE140100036]
Hetero-dimeric magnetic nanoparticles of the type Au-Fe3O4 have been synthesised from separately prepared, differently shaped (spheres and cubes), monodisperse nanoparticles. This synthesis was achieved by the following steps: (a) Mono-functionalising each type of nanoparticles with aldehyde functional groups through a solid support approach, where nanoparticle decorated silica nanoparticles were fabricated as an intermediate step; (b) Derivatising the functional faces with complementary functionalities (e.g. amines and carboxylic acids); (c) Dimerising the two types of particles via amide bond formation. The resulting hetero-dimers were characterised by high-resolution TEM, Fourier transform IR spectroscopy and other appropriate methods.
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