Quantification of the Helical Morphology of Chiral Gold Nanorods.
Journal
ACS materials letters
ISSN: 2639-4979
Titre abrégé: ACS Mater Lett
Pays: United States
ID NLM: 101747116
Informations de publication
Date de publication:
04 Apr 2022
04 Apr 2022
Historique:
received:
20
01
2022
accepted:
02
03
2022
entrez:
11
4
2022
pubmed:
12
4
2022
medline:
12
4
2022
Statut:
ppublish
Résumé
Chirality in inorganic nanoparticles and nanostructures has gained increasing scientific interest, because of the possibility to tune their ability to interact differently with left- and right-handed circularly polarized light. In some cases, the optical activity is hypothesized to originate from a chiral morphology of the nanomaterial. However, quantifying the degree of chirality in objects with sizes of tens of nanometers is far from straightforward. Electron tomography offers the possibility to faithfully retrieve the three-dimensional morphology of nanomaterials, but only a qualitative interpretation of the morphology of chiral nanoparticles has been possible so far. We introduce herein a methodology that enables us to quantify the helicity of complex chiral nanomaterials, based on the geometrical properties of a helix. We demonstrate that an analysis at the single particle level can provide significant insights into the origin of chiroptical properties.
Identifiants
pubmed: 35400146
doi: 10.1021/acsmaterialslett.2c00055
pmc: PMC8986031
doi:
Types de publication
Journal Article
Langues
eng
Pagination
642-649Informations de copyright
© 2022 American Chemical Society.
Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
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