Reusable Xerogel Containing Quantum Dots with High Fluorescence Retention.
Polymers (Basel)
; 10(3)2018 Mar 13.
Article
en En
| MEDLINE
| ID: mdl-30966345
ABSTRACT
Although various analytical methods have been established based on quantum dots (QDs), most were conducted in solution, which is inadequate for storage/transportation and rapid analysis. Moreover, the potential environmental problems caused by abandoned QDs cannot be ignored. In this paper, a reusable xerogel containing CdTe with strong emission is established by introducing hostâ»guest interactions between QDs and polymer matrix. This xerogel shows high QDs loading capacity without decrease or redshift in fluorescence (the maximum of loading is 50 wt % of the final xerogel), which benefits from the steric hindrance of ß-cyclodextrin (ßCD) molecules. Hostâ»guest interactions immobilize QDs firmly, resulting in the excellent fluorescence retention of the xerogel. The good detecting performance and reusability mean this xerogel could be employed as a versatile analysis platform (for quantitative and qualitative analyses). In addition, the xerogel can be self-healed by the aid of water.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Tipo de estudio:
Qualitative_research
Idioma:
En
Revista:
Polymers (Basel)
Año:
2018
Tipo del documento:
Article
País de afiliación:
China