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Gold nanotriangles decorated with superparamagnetic iron oxide nanoparticles: a compositional and microstructural study

Gold nanotriangles decorated with superparamagnetic iron oxide nanoparticles: a compositional and microstructural study

Scientific Highlights Biomaterials and materials for drug delivery, therapy, diagnostics and sensing 05 August 2016 5156 hits jags

J. A. HachtelS. YuA. R. LupiniS. T. Pantelides,  M. GichA. Laromaine and A. Roig*  Faraday Discuss., 2016, Advance Article DOI: 10.1039/C6FD00028B

The combination of iron oxide and gold in a single nanoparticle results in both magnetic and plasmonic properties that can stimulate novel applications in bio-sensing, medical imaging, or therapeutics. Microwave assisted heating allows the fabrication of multi-component, multi-functional nanostructures by promoting selective heating at desired sites. Recently, we reported a microwave-assisted polyol route yielding gold nanotriangles decorated with iron oxide nanoparticles. Here, we present an in-depth microstructural and compositional characterization of the system using scanning transmission electron microscopy (STEM) and electron energy loss spectroscopy (EELS). A method to remove the iron oxide nanoparticles from the gold nanocrystals and some insights on crystal nucleation and growth mechanisms are also provided.

See more posts on ICMAB related to: J. A. Hachtel , S. Yu , A. R. Lupini , S. T. Pantelides , Marti Gich , Anna Laromaine , Anna Roig

Related Topics: Biomaterials and materials for drug delivery, therapy, diagnostics and sensing

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