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First fluorescent sensor for curcumin in aqueous media based on acylhydrazone-bridged bis-tetraphenylethylene.
- Source :
-
Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy . Mar2020, Vol. 229, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- This work designed and synthesized the first organic fluorescent sensor for curcumin in aqueous media based on red-to-green fluorescence change of acylhydrazone-bridged bis-tetraphenylethylene (Bis-TPE). Bis-TPE was prepared by condensation of formyltetraphenylethylene with dihydrazide oxalate in 86% yield. It has the large conjugated electron effect with strong red AIE fluorescence in aqueous solution. It displayed high selective sensing ability for curcumin with red-to-green fluorescence change in THF-H 2 O (5:95). The detection limit was as low as 1.15 × 10−7 M. The sensing mechanism was confirmed as 1:1 stoichiometric ratio based on quadruple hydrogen bonds. Bis-TPE was successfully applied for analyzing curcumin of ginger and living cell imaging, supplying a new detecting strategy for curcumin in real sample and living environment. The first organic fluorescent sensor for curcumin in aqueous media based on red-to-green fluorescence change of acylhydrazone-bridged bis-tetraphenylethylene was reported. Unlabelled Image • The first fluorescent sensor for curcumin in aqueous media was reported. • The obvious red-to-green fluorescence change was observed after sensing curcumin. • The detection limit was as low as 1.15 × 10−7 M. • This sensor was applied in detecting curcumin in real sample of ginger. • This sensor exhibited good fluorescent response for curcumin in living bioimaging. [ABSTRACT FROM AUTHOR]
- Subjects :
- *MASS media
*OXALATES
*CELL imaging
*DETECTORS
*DETECTION limit
*HYDROGEN bonding
Subjects
Details
- Language :
- English
- ISSN :
- 13861425
- Volume :
- 229
- Database :
- Academic Search Index
- Journal :
- Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy
- Publication Type :
- Academic Journal
- Accession number :
- 141784363
- Full Text :
- https://doi.org/10.1016/j.saa.2019.117916