摘要
Novel triphenylamine (TPA)-based derivative L, which shows strong affinity for SiO32- and fluorometric detection of Cu2+ over other anions or cations, has been synthesized by simple steps. The experimental results displayed that derivative L has a remarkable sensitivity towards SiO32- by producing separately dispersed and modified silica nanoparticles (NPs) with an average size of 377 nm in acetonitrile solution. Moreover, L also displayed obvious selectivity to Cu(2+)via 29-fold fluorescence intensity enhancement with a blue shift of 33 nm due to the formation of a 2:1 complex at room temperature. In addition, the probe could map the distribution of intracellular SiO32- or Cu2+ in live cells by fluorescence confocal microscopy.
- 出版日期2018-12-14
- 单位澳门大学; 安徽大学