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

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• 作者：Luca Guerrini ; Jos&eacute ; V. Garcia-Ramos ; Concepció ; n Domingo ; Santiago Sanchez-Cortes
• 刊名：Langmuir
• 出版年：2006
• 出版时间：December 19, 2006
• 年：2006
• 卷：22
• 期：26
• 页码：10924 - 10926
• 全文大小：109K
• 年卷期：v.22,no.26(December 19, 2006)
• ISSN：1520-5827

文摘

We report the use of 25,27-diethyl-dithiocarbamic-26,28-dihydroxy-p-tert-butylcalix[4]arene in the functionalizationof Ag nanoparticles for pyrene detection by surface-enhanced Raman scattering (SERS). SERS spectra providedinformation 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-basedproperties of nanostructured metals, the molecular size-selective recognition of calixarene, and the strong chelatingproperties of the dithiocarbamate group toward the metal surface in the detection of polycyclic aromatic hydrocarbons.