Highly selective detection of Pd2+ ion in aqueous solutions with rhodamine-based colorimetric and fluorescent chemosensors.
Talanta
; 210: 120634, 2020 Apr 01.
Article
en En
| MEDLINE
| ID: mdl-31987194
ABSTRACT
In this study, we report a new class of rhodamine-based fluorescent sensors for highly selective and sensitive detection of Pd2+ ions in aqueous medium. A rhodamine-based palladium sensor RPS and a coumarin-rhodamine Förster resonance energy transfer (FRET)-pair based palladium sensor FPS were synthesized with the designed podand ligand for Pd2+ ion recognition. They showed both colorimetric change and fluorometric change in the presence of Pd2+ ion due to the opening of their spirolactam rings. Both chemosensors are highly selective to Pd2+ over the other 24 different metal ions and they are selective to palladium species in +2 oxidation state, RPS showed a 70-fold fluorescent turn-on while FPS showed a 1.75-fold ratiometric change at I599/I470. Furthermore, RPS showed low cell cytotoxicity and it was successfully used to image Pd2+ in BEAS-2B lung epithelial cells. © 2019 Elsevier Science. All rights reserved.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Rodaminas
/
Contaminantes Químicos del Agua
/
Colorimetría
/
Colorantes Fluorescentes
/
Plomo
Tipo de estudio:
Diagnostic_studies
Límite:
Humans
Idioma:
En
Revista:
Talanta
Año:
2020
Tipo del documento:
Article
País de afiliación:
China