Organized Plasmonic Clusters with High Coordination Number and Extraordinary Enhancement in Surface‐Enhanced Raman Scattering (SERS)

descriptionPublicationkeyboard_double_arrow_right Article 04 Nov 2012 Spain German Publisher:WileyJournal:Angewandte Chemie, volume 124, pages 12,860-12,865 (issn: 0044-8249, eissn: 1521-3757,

Copyright policy )Funded by:EC | PLASMAQUO, EC | METACHEM, EC | METAMECH

Authors: N. Pazos-Pérez; A. Wittemann; C.S. Wagner; J.M. Romo-Herrera; L.M. Liz-Marzán; F.J. Garcia de abajo; A. Fery; +1 Authors

doi: 10.1002/ange.201207019 , 10.1002/anie.201207019

pmid: 23125181

pmc: PMC3556689

handle: 10261/252984

Organized Plasmonic Clusters with High Coordination Number and Extraordinary Enhancement in Surface‐Enhanced Raman Scattering (SERS)

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Abstract

This work was funded by the Spanish Ministerio de Economia y Competitividad (CTQ2011-23167, MAT2010-15374, MAT2010-14885, and Consolider NanoLight.es), the Xunta de Galicia (09TMT011314PR), and the European Research Council (Advanced Grant PLASMAQUO; Starting Grant METAMECH; and FP7/2008 Metachem Project under grant agreement no. 228762); German research foundation (DFG) within collaborative research center 840, TPs A3 and B5.

Highly symmetric gold nanoparticle clusters with coordination numbers up to seven were produced by using coating with block copolymers. The resulting clusters were separated by density gradient centrifugation and characterized by using SEM and optical spectroscopy (see picture). Copyright Â© 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

6 pags, 4 figs. -- Supporting Information is available at the Publisher's web

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Spain

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Keywords

Propylene Glycols, Centrifugation, Density Gradient, Metal Nanoparticles, Gold, Poloxamer, Spectrum Analysis, Raman, Communications, Polyethylene Glycols

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