Chem. J. Chinese Universities ›› 2012, Vol. 33 ›› Issue (09): 1991.doi: 10.3969/j.issn.0251-0790.2012.09.020

• Organic Chemistry • Previous Articles     Next Articles

Effects of Cu2+ on Fluorescent Properties of Biphenyl-4-carbaldehyde Modified Polyamidoamine Dendrimers

HAN Qiao-Rong, LU Tian-Hong, JIANG Yu-Liang, WANG Bing-Xiang   

  1. Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, China
  • Received:2012-01-06 Online:2012-09-10 Published:2012-08-14

Abstract:

Two PAMAM-BPA dendrimers(G1-BPA4 and G2-BPA8) of generation one and two modified with biphenyl-4-carbaldehyde, were synthesized respectively. These PAMAM-BPA dendrimers were characterized by IR,1H NMR and MALDI-TOF MS. The effects of Cu2+ on the fluorescent properties of these dendrimers was studied. The results indicated that Cu2+ which usually as the fluorescent quenching agent, in proper concentration ranges, could enhance the fluorescence intensity of dendrimer G1-BPA4 and dendrimer G2-BPA8, perhaps due to the presence of the dendrimer effect. It provides a new research content for this kind of dendrimers as the dendrimer-copper hybrid fluorescent materials or as a fluorescence probe of Cu2+.

Key words: Polyamidoamine dendrimer, Biphenyl-4-carbaldehyde, Copper ion, Fluorescent probe

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