Ye, S orcid.org/0000-0001-5152-5753, Connell, SD orcid.org/0000-0003-2500-5724, McLaughlan, JR orcid.org/0000-0001-5795-4372 et al. (10 more authors) (2020) One‐Step Preparation of Biocompatible Gold Nanoplates with Controlled Thickness and Adjustable Optical Properties for Plasmon‐Based Applications. Advanced Functional Materials, 30 (40). 2003512. ISSN 1616-301X
Abstract
The ability to synthesize plasmonic nanomaterials with well‐defined structures and tailorable size is crucial for exploring their potential applications. Gold nanoplates (AuNPLs) exhibit appealing structural and optical properties, yet their applications are limited by difficulties in thickness control. Other challenges include a narrow range of tunability in size and surface plasmon resonance, combined with a synthesis conventionally involving cytotoxic cetyltrimethylammonium (CTA) halide surfactant. Here, a one‐step, high‐yield synthesis of single‐crystalline AuNPLs is developed, based on the combined use of two structure‐directing agents, methyl orange and FeBr3, which undergo preferential adsorption onto different crystalline facets of gold. The obtained AuNPLs feature high shape homogeneity that enables mesoscopic self‐assembly, broad‐range tunability of dimensions (controlled thickness from ≈7 to ≈20 nm, accompanied by modulation of the edge length from ≈150 nm to ≈2 µm) and plasmonic properties. These merits, coupled with a preparation free of CTA‐halide surfactants, have facilitated the exploration of various uses, especially in bio‐related areas. For example, they are demonstrated as biocompatible photothermal agents for cell ablation in NIR I and NIR II windows. This work paves the way to the innovative fabrication of anisotropic plasmonic nanomaterials with desired attributes for wide‐ranging practical applications.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
Keywords: | gold nanoplates; high‐yield synthesis; self‐assembly; surface plasmon resonance; thickness control |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemistry (Leeds) > Organic Chemistry (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Robotics, Autonomous Systems & Sensing (Leeds) The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Molecular & Nanoscale Physics |
Funding Information: | Funder Grant number EPSRC (Engineering and Physical Sciences Research Council) EP/S001069/1 EPSRC (Engineering and Physical Sciences Research Council) EP/M028143/1 EPSRC (Engineering and Physical Sciences Research Council) EP/P00122X/1 EPSRC (Engineering and Physical Sciences Research Council) EP/J021156/1 EPSRC (Engineering and Physical Sciences Research Council) EP/R00661X/1 MRC (Medical Research Council) MC_PC_14109 EPSRC (Engineering and Physical Sciences Research Council) EP/P005233/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 23 Jun 2020 10:09 |
Last Modified: | 02 Jan 2025 11:46 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1002/adfm.202003512 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:162223 |