Publication
Title
Tuning the growth of chiral gold nanoparticles through rational design of a chiral molecular inducer
Author
Abstract
The bottom-up production of chiral gold nanomaterials holds great potential for the advancement of biosensing and nano-optics, among other applications. Reproducible preparations of colloidal nanomaterials with chiral morphology have been reported, using cosurfactants or chiral inducers such as thiolated amino acids. However, the underlying growth mechanisms for these nanomaterials remain insufficiently understood. We introduce herein a purposely devised chiral inducer, a cysteine modified with a hydrophobic chain, as a versatile chiral inducer. The amphiphilic and chiral features of this molecule provide control over the chiral morphology and the chiroptical signature of the obtained nanoparticles by simply varying the concentration of chiral inducer. These results are supported by circular dichroism and electromagnetic modeling as well as electron tomography to analyze structural evolution at the facet scale. Our observations suggest complex roles for the factors involved in chiral synthesis: the chemical nature of the chiral inducers and the influence of cosurfactants.
Language
English
Source (journal)
Nano letters / American Chemical Society. - Washington
Publication
Washington : 2023
ISSN
1530-6984
DOI
10.1021/ACS.NANOLETT.3C02800
Volume/pages
23 :21 (2023) , p. 9880-9886
ISI
001092787000001
Pubmed ID
37877612
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 08.11.2023
Last edited 10.01.2024
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