| Titre : |
Thiocarbazone-appended coumarin : An easily accessible ratiometric fluorescent chemosensor for multianalyte (Zn2+ and Cu2+) systems |
| Type de document : |
texte imprimé |
| Auteurs : |
Mu-Xuan Lv, Auteur ; Lin-Yan Bian, Auteur ; Wei-Na Wu, Auteur ; Zhi-Hong Xu, Auteur ; Yuan Wang, Auteur ; Xiao-Lei Zhao, Auteur ; Zhou-Qing Xu, Auteur ; Yun-Chang Fan, Auteur ; Ling-Ling Yan, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 157-167 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Capteurs chimiques
Composés organiques -- Synthèse
Coumarine -- Composés
Fluorescence
Ions cuivre
Ions zinc
Sondes fluorescentes
|
| Index. décimale : |
667.2 Colorants et pigments |
| Résumé : |
A simple thiocarbazone-appended coumarin derivative 1 with high selectivity as a ratiometric fluorescence sensor towards Cu2+ and Zn2+ in a semi-aqueous solution was synthesised and characterised. Upon the addition of Cu2+ and Zn2+, the emission of 1 solution undergoes a blue and red shift to 480 and 545 nm according to the intense blue and yellow colour under a 365-nm ultraviolet lamp, respectively. Binding was confirmed by ultraviolet-visible absorption analysis, fluorescence measurement, mass spectrometry, proton nuclear magnetic resonance, Fourier Transform-infrared spectroscopy and density functional theory calculation. The results show that 1 coordinated with Cu2+ and Zn2+ in different modes, resulting in different ratiometric fluorescence responses. The detection limits of the sensor 1 for Cu2+ and Zn2+ were 100.8 and 11.5 nM, respectively. The association constants (Ka) of Cu2+ and Zn2+ with 1 were determined to be 5.59 × 104 and 5.08 × 104 M−1, respectively. Fluorescent microscopy experiments demonstrated that probe 1 has the potential to be used to monitor Zn2+ and Cu2+ in living cells. |
| Note de contenu : |
- EXPERIMENTAL : Materials and instrumentation - General ultraviolet-visible and fluorescence spectra measurements - Tynthesis of 1
- RESULTS AND DISCUSSION : Fluorescent selectivity of 1 to Cu2+/Zn2+ - Investigation of the sensing mechanism - Detection of Cu2+ and Zn2+ in water samples - Fluorescence imaging of intercellular Cu2+ and Zn2+
- Table 1 : Some coumarin-containing fluorescent probes for Cu2+ or Zn2+ in the past few years
- Table 2 : Determination of CU2+/Zn2+ in water samples (n = 3) |
| DOI : |
https://doi.org/10.1111/cote.12579 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12579 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37846 |
in COLORATION TECHNOLOGY > Vol. 138, N° 2 (04/2022) . - p. 157-167
Aller sur edunet
Accueil
Ajouter le résultat dans votre panier Affiner la rechercheThiocarbazone-appended coumarin : An easily accessible ratiometric fluorescent chemosensor for multianalyte (Zn2+ and Cu2+) systems / Mu-Xuan Lv in COLORATION TECHNOLOGY, Vol. 138, N° 2 (04/2022)
