Magnetic gold nanotriangles by microwave-assisted polyol synthesis

Journal Article · Tue Jul 21 04:00:00 EDT 2015 · Nanoscale

DOI:https://doi.org/10.1039/C5NR03113C· OSTI ID:1265829

Yu, Siming ^[1]; Hachtel, Jordan A. ^[2]; Chisholm, Matthew F. ^[3]; Pantelides, Sokrates T. ^[2]; Laromaine, Anna ^[1]; Roig, Anna ^[1]

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1. Univ. of Cantoblanco, Madrid (Spain). Inst. of Materials Science of Madrid-CSIC
2. Vanderbilt Univ., Nashville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Our simple approach to synthesize hybrid nanoparticles with magnetic and plasmonic functionalities, with high control of their shape and avoiding cytotoxic reactants, to target biomedical applications remains a huge challenge. 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. Moreover, 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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
• DOE Contract Number: AC05-00OR22725; FG02-09ER46554
• OSTI ID: 1265829
• Journal Information: Nanoscale, Journal Name: Nanoscale Journal Issue: 33 Vol. 7; ISSN NANOHL; ISSN 2040-3364
• Publisher: Royal Society of Chemistry
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE