Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 204, Issue -, Pages 18-23Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2014.07.096
Keywords
Fluorescent; Copper ion; Three binding sites; 'ON-OFF-ON'; Bioimaging
Funding
- National Natural Science Foundation of China [21102086]
- Shanxi Province Science Foundation for Youths [2012021009-4, 2013011011-1]
- Shanxi Province Foundation for Returnee [2012-007]
- Taiyuan Technology star special [12024703]
- Program for the Top Young and Middle-aged Innovative Talents of Higher Learning Institutions of Shanxi [2013802]
- Talents Support Program of Shanxi Province [2014401]
- CAS Key Laboratory of Analytical Chemistry for Living Biosystems Open Foundation [ACL201304]
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Traditional single binding site probes for metal ions usually lack the ability to form stable products in the recognition process. Herein, a novel three binding sites ON-OFF-ON fluorescent probe, triformylphloroglucinol 3-amino-9-ethylcarbazole hydrazone was introduced to overcome this defect. After testing the optical properties of triformylphloroglucinol 3-amino-9-ethylcarbazole hydrazone, the data show that this compound is an excellent fluorescent probe for copper ion and the probe can be released by introduction of citric acid, oxalic acid, pyrophosphoric acid and sodium thiosulfate. Finally, cell permeability and live cell imaging of copper ions are also demonstrated, which is useful. (C) 2014 Elsevier B.V. All rights reserved.
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