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A TICT based two-photon fluorescent probe for bisulfite anion and its application in living cells.
- Source :
-
Sensors & Actuators B: Chemical . Nov2016, Vol. 235, p362-369. 8p. - Publication Year :
- 2016
-
Abstract
- A two-photon fluorescent probe ( DMPCA ) for the detection of bisulfite anion in water was developed based on twisted-intramolecular-charge-transfer (TICT) mechanism. Fluorescence intensity of DMPCA increased dramatically (65 fold) upon the addition of HSO 3 − . The two-photon absorption cross-section of DMPCA was found to be 725 GM at 700 nm upon the addition of HSO 3 − . The fluorescent probe showed an excellent selectivity for bisulfite anion over other anions. The nucleophilic addition reaction mechanism with aldehyde was confirmed with NMR and MALDI-TOF. The TICT detection mechanism was confirmed by viscosity-dependent fluorescence spectra and time resolved fluorescence spectra. Moreover, DMPCA was successfully applied to the detection of bisulfite anion in HeLa cells with low cytotoxicity under two-photon excitation. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PHOTONS
*FLUORESCENT probes
*SULFITES
*ANIONS
*CELLS
*CHARGE transfer
Subjects
Details
- Language :
- English
- ISSN :
- 09254005
- Volume :
- 235
- Database :
- Academic Search Index
- Journal :
- Sensors & Actuators B: Chemical
- Publication Type :
- Academic Journal
- Accession number :
- 117011166
- Full Text :
- https://doi.org/10.1016/j.snb.2016.05.099