In:
Analytical Methods, Royal Society of Chemistry (RSC), Vol. 15, No. 32 ( 2023), p. 4021-4031
Abstract:
A novel fluorescent dye molecule – triphenylamine (TPA)–benzothiazole (BZT) – based on excited state intramolecular proton transfer (ESIPT) was prepared by the Suzuki coupling reaction. The photophysical property assay indicates that BZT-TPA appeared in distinguishable colors in mixed solvents with different water contents. Moreover, BZT-TPA exhibited observable AIE behavior. On this basis, a fluorescent probe BZT-TPA-BO was synthesized for detecting H 2 O 2 . This probe molecule was found to have excellent selectivity, rapid response, and good linear relationship ( R 2 = 0.989) for detecting H 2 O 2 in aqueous medium. Through DFT calculation, fluorescence spectrum, nuclear magnetic titration and HR-MS, the mechanism of recognition of H 2 O 2 by the probe BZT-TPA-BO is proposed. In addition, the probe BZT-TPA-BO to some extent exhibited better performance for detecting exogenous H 2 O 2 in HeLa cells.
Type of Medium:
Online Resource
ISSN:
1759-9660
,
1759-9679
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2023
detail.hit.zdb_id:
2515210-5
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