6533b7d8fe1ef96bd126a261

RESEARCH PRODUCT

Selective Recognition and Sensing of Succinate vs. Other Aliphatic Dicarboxylates by Thiourea-Functionalized Gold Nanoparticles

Pablo GaviñaPablo GaviñaAna M. CosteroAna M. CosteroMargarita ParraMargarita ParraAlmudena MartíAlmudena Martí

subject

genetic structures010405 organic chemistryNanoparticleGeneral Chemistry010402 general chemistry01 natural sciencesCombinatorial chemistry0104 chemical scienceschemistry.chemical_compoundThioureachemistrySuccinic acidColloidal goldSurface plasmon resonance

description

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.

https://doi.org/10.1002/slct.201600313