Enantiomer-selective molecular sensing using racemic nanoplasmonic arrays
Visualitza/Obre
10.1021/acs.nanolett.8b02433
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/121649
Tipus de documentArticle
Data publicació2018-09-19
Condicions d'accésAccés obert
Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i
industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva
reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets
Abstract
Building blocks of life show well-defined chiral symmetry which has a direct influence on their properties and role in Nature. Chiral molecules are typically characterized by optical techniques such as circular dichroism (CD) where they exhibit signatures in the ultraviolet frequency region. Plasmonic nanostructures have the potential to enhance the sensitivity of chiral detection and translate the molecular chirality to the visible spectral range. Despite recent progress, to date, it remains unclear which properties plasmonic sensors should exhibit to maximize this effect and apply it to reliable enantiomer discrimination. Here, we bring further insight into this complex problem and present a chiral plasmonic sensor composed of a racemic mixture of gammadions with no intrinsic CD, but high optical chirality and electric field enhancements in the near-fields. Owing to its unique set of properties, this configuration enables us to directly differentiate phenylalanine enantiomers in the visible frequency range.
Descripció
This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in Nano Letters, copyright © American Chemical Society after peer review. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.nanolett.8b02433, see http://pubs.acs.org/page/policy/articlesonrequest/index.html
CitacióGarcía-Guirado, J., Svedendahl, M., Puigdollers, J., Quidant, R. Enantiomer-selective molecular sensing using racemic nanoplasmonic arrays. "Nano letters", 19 Setembre 2018, vol. 2018, núm. 18, p. 6279-6285.
ISSN1530-6984
Versió de l'editorhttps://pubs.acs.org/doi/10.1021/acs.nanolett.8b02433
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
chiral paper 1 NL.docx | 2,264Mb | Microsoft Word 2007 | Visualitza/Obre |