Magnetic gold nanotriangles by microwave-assisted polyol synthesis

c5nr03113c f1 hi res

Siming Yu, Jordan A. Hachtel, Matthew F. ChisholmSokrates T. Pantelides, Anna Laromaine* and Anna Roig*  
Nanoscale, 2015,7, 14039-14046


DOI: 10.1039/C5NR03113C

Simple approaches to synthesize hybrid nanoparticles with magnetic and plasmonic functionalities, with high control of their shape and avoiding cytotoxic reactants, to target biomedical applications remain a huge challenge. Here, we report a facile, fast and bio-friendly microwave-assisted polyol route for the synthesis of a complex multi-material consisting of monodisperse gold nanotriangles around 280 nm in size uniformly decorated by superparamagnetic iron oxide nanoparticles of 5 nm. These nanotriangles are readily dispersible in water, display a strong magnetic response (10 wt% magnetic fraction) and exhibit a localized surface plasmon resonance band in the NIR region (800 nm). Moreover, these hybrid particles can be easily self-assembled at the liquid–air interfaces.


Bioactive materials for therapy and diagnosis

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