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Selective Recognition and Sensing of Succinate vs. Other Aliphatic Dicarboxylates by Thiourea‐Functionalized Gold Nanoparticles
Author(s) -
Martí Almudena,
Costero Ana M.,
Gaviña Pablo,
Parra Margarita
Publication year - 2016
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201600313
Subject(s) - thiourea , naked eye , nanoparticle , surface plasmon resonance , colloidal gold , chemistry , photochemistry , combinatorial chemistry , organic chemistry , materials science , nanotechnology , chromatography , detection limit
Gold nanoparticles functionalized with thiourea moieties have been used as selective colorimetric sensors for the naked‐eye detection of succinate versus other aliphatic dicarboxylates, all of them as their TBA salts. The detection process is based on the interparticle aggregation triggered by coordination of the end‐carboxylates to the thiourea moieties of two different nanoparticles. This nanoparticle aggregation results in a batochromic shift of the plasmon resonance band and a visual color change from red to blue.