A new colorimetric and fluorimetric sensor for metal cations based on poly(propilene amine) dendrimer modified with 1,8-naphthalimide

作者：Grabchev Ivo^*; Bosch Paula; McKenna Mark; Staneva D

来源：Journal of Photochemistry and Photobiology A: Chemistry , 2009, 201(1): 75-80.

DOI：10.1016/j.jphotochem.2008.10.008

• poly(propylene amine)
• Dendrimer
• Sensors
• 1,8-Naphthalimide
• Fluorescence

A new fluorescent first generation poly(propylene amine) dendrimer (PPI), peripherally modified with 4(butylamino-substituted-1,8-naphthalimide), has been synthesized and characterized. Its photophysical characteristics in organic solvents of different polarities were studied, and the influence of sodium hydroxide on its spectral characteristics in N,N-dimethylformamide is discussed. The complexes formed between the dendrimer and metal cations in solution have been studied with regard to the potential applications of the new dendrimer as a colorimetric and fluorescent sensor for metal ions. The fluorescence intensity of the dendrimer in the presence of metal cations (Zn(2 ), Co(2 ), Pb(2 ), Mn(2 ), Cu(2 ) and Fe(3 )) increases substantially revealing its sensor potential.

• 出版日期2009-1-1