ZnS:Mn nanoparticles functionalized by PAMAM-OH dendrimer based fluorescence ratiometric probe for cadmium

• Tipo: Artigo em Revista Científica Internacional
• Data: 2015

Autores

Bruno B Campos (Autor) Outra; Manuel Algarra (Autor) Outra; Ksenija Radotic (Autor) Outra; Dragosav Mutavdzic (Autor) Outra; Enrique Rodriguez Castellon (Autor) Outra; Jose Jimenez Jimenez (Autor) Outra; Beatriz Alonso (Autor) Outra; Carmen M Casado (Autor) Outra; Joaquim C G Esteves da Silva (Autor) FCUP

Revista

Título: Talanta

Vol. 134

Páginas: 317-324

ISSN: 0039-9140

Editora: Elsevier

Indexação

ISI Web of Knowledge - 9 Citações

Scopus - 10 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-00A-20B

DOI: 10.1016/j.talanta.2014.10.010

Abstract (EN): We report a nanocomposite of ZnS:Mn quantum dots and a third generation PAMAM-OH dendrimer (ZnS:Mn@PAMAM-OHG=3) which was rationalized to be used as ratiometric nanosensor for Cd2+ in aqueous solution. The nanoparticles exhibited a bright yellow-orange emission with peaks at 448 and 595 nm. The structure of ZnS:Mn was not changed after coupling with PAMAM-OH, which was evidenced by the analysis of the emission spectra of the compounds. The results confirm that the prepared fluorescence nanoparticles could selectively detect Cd2+ in aqueous solution with a limit of detection of 24.34 mu M and RSD 4.07%, obtained by using the ratio I-448/I-595. The method was applied to different water samples.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8