Journal
JOURNAL OF LUMINESCENCE
Volume 203, Issue -, Pages 113-120Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2018.06.047
Keywords
Aluminum ions; Reversibility; Fluorescence probe; Fluorescent imaging; Coordination
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Funding
- National Natural Science Foundation for Young Scientists of China [21301150, 21571154]
- Post-Doctoral Foundation of Jiangsu Provincial [1501032B]
- practice innovation training program projects for the Jiangsu College students [201610324021Z]
- Six Talent Peak Project in Jiangsu Province [SWYY-063]
- Qing Lan Project of Jiangsu Province
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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.
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