logo icmab ochoa 02 01 logo icmab ochoa 02 01
  • NEWS

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

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

Also on ICMAB...

  • New dimension in nanoparticle research | EU Research article

    28 September 2017 307 hit(s)

    One of the projects of Dr. Anna Laromaine, ICMAB researcher in the Nanoparticles and Nanocomosites Group (NN), is featured on EU Research Digital Magazine. The article focuses on one of her projects involving the synthesis and evaluation of nanoparticles in 3D environments: 3DinvitroNPC. 
  • Iron oxide nanoparticles stress the cells

    07 August 2017 877 hit(s)

    ICMAB researchers lead a study on the toxicity of iron oxide nanoparticles based on the analysis of specific genetic markers linked to nanotoxicity in the C. elegans organisms. Part of the experiment, published in the journal Nanotoxicology, has been carried out at the ALBA Synchrotron, in its infrared light MIRAS beamline. The study suggests that nanoparticles can be captured by intestinal cells in their interior, they can interact with cell lipids, and they can activate cellular mechanisms of oxidative stress.

Search