English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/221197
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Micelle-directed chiral seeded growth on anisotropic gold nanocrystals

AuthorsGonzález-Rubio, G.; Mosquera, jesús; Kumar, V.; Pedrazo-Tardajos, A.; Llombart, Pablo; Solís, D.M.; Lobato, I.; Noya, Eva G. ; Guerrero-Martínez, A.; Taboada, J. M.; Obelleiro, F.; MacDowell, L.G.; Bals, S.; Liz-Marzán, L.M.
Issue Date26-Jun-2020
PublisherAmerican Association for the Advancement of Science
CitationScience 368: 1472-1477 (2020)
AbstractSurfactant-assisted seeded growth of metal nanoparticles (NPs) can be engineered to produce anisotropic gold nanocrystals with high chiroptical activity through the templating effect of chiral micelles formed in the presence of dissymmetric cosurfactants. Mixed micelles adsorb on gold nanorods, forming quasihelical patterns that direct seeded growth into NPs with pronounced morphological and optical handedness. Sharp chiral wrinkles lead to chiral plasmon modes with high dissymmetry factors (~0.20). Through variation of the dimensions of chiral wrinkles, the chiroptical properties can be tuned within the visible and near-infrared electromagnetic spectrum. The micelle-directed mechanism allows extension to other systems, such as the seeded growth of chiral platinum shells on gold nanorods. This approach provides a reproducible, simple, and scalable method toward the fabrication of NPs with high chiral optical activity.
Description6 pags., 4 figs.
Publisher version (URL)http://dx.doi.org/10.1126/science.aba0980
URIhttp://hdl.handle.net/10261/221197
Identifiersdoi: 10.1126/science.aba0980
issn: 1095-9203
Appears in Collections:(IQFR) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.