Journal
RSC ADVANCES
Volume 6, Issue 106, Pages 103905-103909Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra24667b
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Funding
- National Science Foundation of China [21572209]
- Program for Innovative Research Team (in Science and Technology) in University of Henan Province [17IRTSTHN002]
- Science-Technology Foundation for Outstanding Young Scientists of Henan Academy of Agricultural Sciences [2016YQ22]
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A new rosamine-based fluorescent probe (RosCHO)for bisulfite was obtained by one pot reaction of p-phthalaldehyde and 3-(diethylamino) phenol, which showed excellent selectivity, high sensitivity and a rapid response toward bisulfite in aqueous solution. Upon the addition of HSO3-, the aldehyde moiety in probe RosCHO formed a hydrogen sulfite-dependent adduct product, leading to fluorescence enhancement due to the different ICT process. The detection limit for bisulfite was as low as 7 x 10(-8) M, and fluorescence imaging of bisulfite in MCF-7 cells demonstrated its value to practical application in biological systems.
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