title: Functionalization of Ag nanoparticles with dithiocarbamate calix[4]arene as an effective supramolecular host for the surface-enhanced Raman scattering detection of polycyclic aromatic hydrocarbons.
abstract: We report the use of 25,27-diethyl-dithiocarbamic-26,28-dihydroxy-p-tert-butylcalix[4]arene in the functionalization of Ag nanoparticles for pyrene detection by surface-enhanced Raman scattering (SERS). SERS spectra provided information about the calixarene orientation on the metal surface and the interaction mechanism with pyrene. Thus, in this work, we have combined a powerful spectroscopy technique such as SERS, the electronic plasmon-based properties of nanostructured metals, the molecular size-selective recognition of calixarene, and the strong chelating properties of the dithiocarbamate group toward the metal surface in the detection of polycyclic aromatic hydrocarbons.
authors.affiliation: Instituto de Estructura de la Materia, CSIC, Serrano 121, 28006-Madrid, Spain.
authors.forename: Luca
authors.initials: L
authors.lastname: Guerrini
authors.forename: José V
authors.initials: JV
authors.lastname: Garcia-Ramos
authors.forename: Concepción
authors.initials: C
authors.lastname: Domingo
authors.forename: Santiago
authors.initials: S
authors.lastname: Sanchez-Cortes