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Article

Time Optimization of Seed-Mediated Gold Nanotriangle Synthesis Based on Kinetic Studies

Department of Nanobiophotonics, Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Straße 9, 07745 Jena, Germany
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Academic Editors: Marco Stoller and Albert G. Nasibulin
Nanomaterials 2021, 11(4), 1049; https://doi.org/10.3390/nano11041049
Received: 27 February 2021 / Revised: 14 April 2021 / Accepted: 16 April 2021 / Published: 20 April 2021
The synthesis of shape-anisotropic plasmonic nanoparticles such as gold nanotriangles is of increasing interest. These particles have a high potential for applications due to their notable optical properties. A key challenge of the synthesis is usually the low reproducibility. Even the optimized seed-based methods often lack in the synthesis yield or are labor- and time-consuming. In this work, a seed-mediated synthesis with high reproducibility is replicated in order to determine the necessary reaction time for each step. Online monitoring of the reaction mixtures by UV–VIS spectroscopy is used as a powerful tool to track the evolution of the synthesis. The kinetics of the individual stages is elucidated by real-time investigations. As a consequence, the complete synthesis could be optimized and can now be realized in a single day instead of three without any loss in the resulting sample quality. View Full-Text
Keywords: gold nanoprisms; gold nanotriangles; shape anisotropy; triangular gold; kinetics; seed-mediated synthesis; localized surface plasmon resonance; plasmonic nanoparticles; time-resolved UV–VIS spectroscopy gold nanoprisms; gold nanotriangles; shape anisotropy; triangular gold; kinetics; seed-mediated synthesis; localized surface plasmon resonance; plasmonic nanoparticles; time-resolved UV–VIS spectroscopy
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MDPI and ACS Style

Podlesnaia, E.; Csáki, A.; Fritzsche, W. Time Optimization of Seed-Mediated Gold Nanotriangle Synthesis Based on Kinetic Studies. Nanomaterials 2021, 11, 1049. https://doi.org/10.3390/nano11041049

AMA Style

Podlesnaia E, Csáki A, Fritzsche W. Time Optimization of Seed-Mediated Gold Nanotriangle Synthesis Based on Kinetic Studies. Nanomaterials. 2021; 11(4):1049. https://doi.org/10.3390/nano11041049

Chicago/Turabian Style

Podlesnaia, Ekaterina, Andrea Csáki, and Wolfgang Fritzsche. 2021. "Time Optimization of Seed-Mediated Gold Nanotriangle Synthesis Based on Kinetic Studies" Nanomaterials 11, no. 4: 1049. https://doi.org/10.3390/nano11041049

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