Sea Urchin-Like Gold Nanoparticles: Controllable Preparation and SERS Properties
Here, we report on a seed-mediated growth method for the production of goldnanoparticles that have a number (>4) of branches ultimately resembling the shape of sea urchins.These nano-urchins are produced in high yield and exhibit unique optical properties. By altering theamount of gold seeds, HAu...
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Published in | Key engineering materials Vol. 789; pp. 1 - 5 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Zurich
Trans Tech Publications Ltd
01.11.2018
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Subjects | |
Online Access | Get full text |
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Summary: | Here, we report on a seed-mediated growth method for the production of goldnanoparticles that have a number (>4) of branches ultimately resembling the shape of sea urchins.These nano-urchins are produced in high yield and exhibit unique optical properties. By altering theamount of gold seeds, HAuCl4 and hydroquinone in the reaction system, we managed to tune thesize of the SGNPs from 40 to 180 nm. Their extinction spectrum shows a shift in the plasmonresonance from 550 to 670 nm. The SERS spectrum of these products prepared were detected andcompared. By optimizing the conditions, SGNPs with uniform morphology, good monodispersityand strong SERS effect were prepared. |
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Bibliography: | Selected, peer reviewed papers from the 3rd International Conference on Material Engineering and Application (3rd ICMEA 2018), August 10-12, 2018, Hong Kong, China |
ISSN: | 1013-9826 1662-9795 1662-9795 |
DOI: | 10.4028/www.scientific.net/KEM.789.1 |