A novel turn on and reversible sensor for Al3+ and its applications in bioimaging

作者：Wang, Qingming^*; Sun, Huifang; Jin, Lei; Wang, Wenling; Zhang, Zhiheng; Chen, Yanli

来源：Journal of Luminescence, 2018, 203: 113-120.

DOI：10.1016/j.jlumin.2018.06.047

• Aluminum ions
• Reversibility
• Fluorescence probe
• Fluorescent imaging
• Coordination

A new and non-toxic probe 1 is synthesized and acted as fluorogenic sensor for Al3+ detection in CH3CH2OH / H2O (1: 1, v/v). Besides the specific Al3+ induced a yellow solution of probe 1 to turn to colorless and with a 33 - fold fluorescence enhancement at 440 nm. Probe 1 is highly selective to Al3+ among other tested metal ions and anions with the detection limit is 0.37 mu M. What's more, the binding constant between probe 1 and Al3+ is 7.62 x 10(6) M-1. The mechanism is confirmed by ESI - MS and a stoichiometric ratio of 1: 1 between probe 1 and AI(3+). The reversible "off-on'' Al3+ response, fine cell permeability and cell imaging ability displays that its potential application in both environmental and Al3+ polluted biological samples.

• 出版日期2018-11
• 单位盐城师范学院