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http://hdl.handle.net/10397/105992
Title: | Synthesis of bitten gold nanoparticles with single-particle chiroptical responses | Authors: | Zhang, H Chen, Y Chui, KK Zheng, J Ma, Y Liu, D Huang, Z Lei, D Wang, J |
Issue Date: | 28-Jun-2023 | Source: | Small, 28 June 2023, v. 19, no. 26, 2301476 | Abstract: | The introduction of structural complexity to nanoparticles brings them interesting properties. Regularity breaking has been challenging in the chemical synthesis of nanoparticles. Most reported chemical methods for synthesizing irregular nanoparticles are complicated and laborious, largely hindering the exploration of structural irregularity in nanoscience. In this study, the authors have combined seed-mediated growth and Pt(IV)-induced etching to synthesize two types of unprecedented Au nanoparticles, bitten nanospheres and nanodecahedrons, with size control. Each nanoparticle has an irregular cavity on it. They exhibit distinct single-particle chiroptical responses. Perfect Au nanospheres and nanorods without any cavity do not show optical chirality, which demonstrates that the geometrical structure of the bitten opening plays a decisive role in the generation of chiroptical responses. | Keywords: | Bitten nanoparticles Chirality Chiroptical responses Plasmon resonance Seed-mediated growth |
Publisher: | Wiley-VCH Verlag GmbH & Co. KGaA | Journal: | Small | ISSN: | 1613-6810 | EISSN: | 1613-6829 | DOI: | 10.1002/smll.202301476 | Rights: | © 2023 The Authors. Small published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribu-tion-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits use, distribution and repro-duction in any medium, provided the original work is properly cited and is not used for commercial purposes. The following publication H. Zhang, Y. Chen, K. K. Chui, J. Zheng, Y. Ma, D. Liu, Z. Huang, D. Lei, J. Wang, Synthesis of Bitten Gold Nanoparticles with Single-Particle Chiroptical Responses. Small 2023, 19(26), 2301476 is available at https://doi.org/10.1002/smll.202301476. |
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Zhang_Synthesis_Bitten_Gold.pdf | 10.01 MB | Adobe PDF | View/Open |
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