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Article: Experimental observation of giant chiroptical amplification of small chiral molecules by gold nanosphere clusters

TitleExperimental observation of giant chiroptical amplification of small chiral molecules by gold nanosphere clusters
Authors
Issue Date2014
Citation
Journal of Physical Chemistry C, 2014, v. 118, n. 18, p. 9690-9695 How to Cite?
AbstractWe have experimentally observed around 2 orders of magnitude circular dichroism (CD) enhancement in the visible region for cysteine molecules located in the hotspots of gold nanosphere clusters. The observed plasmon-induced CD responses show a significant correlation with the chiral nature of molecules at the hotspots. These results provide a concrete experimental demonstration on the predicted chiroptical transfer and amplification effect that arises from hotspot-mediated exciton-plasmon interactions in a strongly coupled metallic nanostructure, even though the exciton-plasmon coupling works at a far off-resonant regime. Our findings suggest here that plasmonic hotspot-based CD amplifier may provide a new strategy for ultrasensitive detection and quantification of molecular chirality-a key aspect for various bioscience and biomedicine applications. © 2014 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/335239
ISSN
2023 Impact Factor: 3.3
2023 SCImago Journal Rankings: 0.957
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Rong Yao-
dc.contributor.authorWang, Peng-
dc.contributor.authorLiu, Yineng-
dc.contributor.authorZhao, Wenjing-
dc.contributor.authorZhai, Dawei-
dc.contributor.authorHong, Xuhai-
dc.contributor.authorJi, Yinglu-
dc.contributor.authorWu, Xiaochun-
dc.contributor.authorWang, Feng-
dc.contributor.authorZhang, Duan-
dc.contributor.authorZhang, Wensheng-
dc.contributor.authorLiu, Ruibin-
dc.contributor.authorZhang, Xiangdong-
dc.date.accessioned2023-11-17T08:24:12Z-
dc.date.available2023-11-17T08:24:12Z-
dc.date.issued2014-
dc.identifier.citationJournal of Physical Chemistry C, 2014, v. 118, n. 18, p. 9690-9695-
dc.identifier.issn1932-7447-
dc.identifier.urihttp://hdl.handle.net/10722/335239-
dc.description.abstractWe have experimentally observed around 2 orders of magnitude circular dichroism (CD) enhancement in the visible region for cysteine molecules located in the hotspots of gold nanosphere clusters. The observed plasmon-induced CD responses show a significant correlation with the chiral nature of molecules at the hotspots. These results provide a concrete experimental demonstration on the predicted chiroptical transfer and amplification effect that arises from hotspot-mediated exciton-plasmon interactions in a strongly coupled metallic nanostructure, even though the exciton-plasmon coupling works at a far off-resonant regime. Our findings suggest here that plasmonic hotspot-based CD amplifier may provide a new strategy for ultrasensitive detection and quantification of molecular chirality-a key aspect for various bioscience and biomedicine applications. © 2014 American Chemical Society.-
dc.languageeng-
dc.relation.ispartofJournal of Physical Chemistry C-
dc.titleExperimental observation of giant chiroptical amplification of small chiral molecules by gold nanosphere clusters-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jp5025813-
dc.identifier.scopuseid_2-s2.0-84900421501-
dc.identifier.volume118-
dc.identifier.issue18-
dc.identifier.spage9690-
dc.identifier.epage9695-
dc.identifier.eissn1932-7455-
dc.identifier.isiWOS:000335878900046-

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