Sorting of Enhanced Reference Raman Spectra of a Single Amino Acid Molecule

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TitreSorting of Enhanced Reference Raman Spectra of a Single Amino Acid Molecule
Type de publicationJournal Article
Year of Publication2014
AuteursBrule T, Yockell-Lelievre H, Bouhelier A, Margueritat J, Markey L, Leray A, Dereux A, Finot E
JournalJOURNAL OF PHYSICAL CHEMISTRY C
Volume118
Pagination17975-17982
Date PublishedAUG 7
Type of ArticleArticle
ISSN1932-7447
Résumé

In this contribution, we report the identification of the principal reference Raman spectra of a single cystein molecule. To that purpose, we design an active Surface Enhanced Raman Spectroscopy (SERS) template based on surfactant-less Chebyshev nanoparticles operating in a microfluidic platform. A principal component analysis is obtained from fluctuating spectra to sort the reference spectra of cystein. The assignment of Raman bands brings new insight into the conformation of an amino acid adsorbed onto gold nanoparticle.
DOI10.1021/jp504395c