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- W2893504805 abstract "We report here a brand new AIE based fluorescent probe (MTPA-Cy) for monitoring the level of ClO−. MTPA-Cy was synthesized via condensation reaction of 3-ethyl-1,1,2-trimethyl-1H-indolium iodide with 4-(bis(4-methoxyphenyl)amino)benzaldehyde, in which indole quaternary salt was incorporated as the mitochondria-target and 4-(bis(4-methoxyphenyl)amino)benzene (TPA) the AIE-active fluorescent reporter. Oxidation by ClO− of the ethylene bridge between TPA unit and indole quaternary salt moiety triggered substantial absorption and fluorescence changes. Upon introduction of ClO−, absorption of MTPA-Cy at 538 nm declined while a new absorption at shorter wavelength around 365 nm developed, manifested by an obvious color change from red to colorless, and fluorescence at 514 nm increased by 16.3-fold under excitation of 365 nm which means a large Stokes shift of ca. 150 nm. A LOD of 13.2 nM was calculated for ClO− in aqueous buffer solution, allowing thereby for detection of ClO− in a wide variety of biological systems. The oxidation product also exhibits two-photon excitation performance since its fluorescence was observed under excitation by an NIR light of 730 nm. MTPA-Cy was applied for detection of ClO− in solution, aggregated forms, solid state and living cells." @default.
- W2893504805 created "2018-10-05" @default.
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- W2893504805 date "2019-01-01" @default.
- W2893504805 modified "2023-10-16" @default.
- W2893504805 title "Two-photon AIE based fluorescent probe with large stokes shift for selective and sensitive detection and visualization of hypochlorite" @default.
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- W2893504805 doi "https://doi.org/10.1016/j.snb.2018.09.057" @default.
- W2893504805 hasPublicationYear "2019" @default.
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