Fluorescence turn off-on probe (ß-cyclodextrin-hydroxyquinoline) for monitoring of Cd2+ ions and tetracycline.
Methods Appl Fluoresc
; 8(2): 025009, 2020 Apr 02.
Article
en En
| MEDLINE
| ID: mdl-32101795
ABSTRACT
In this paper, a photoluminescent turn off-on switch probe ß-cyclodextrin-hydroxyquinoline (ß-CD-HQ) was efficiently applied for detection and measurement of Cd2+ ions and detection of tetracycline. The proposed assay has shown an excellent selective fluorescence response toward Cd2+ ions over other ions like Al3+, Pb2+, Zn2+, Co2+, K+, Na+ and Sr2+. The fluorescence emission intensity of the probe is slightly affected by competing ions. In optimum pH value, 4, the limit of detection and linear concentration range were 0.05 nM and 0.1-1.5 nM, respectively. Additionally, the extraordinary output signal of ß-CD-HQ was utilized to investigate the logic behavior of ß-CD-HQ in the aqueous media. Accordingly, a solid support logic circuit was made by producing the fluorescence output signal under the stimulation of Cd2+ ions and tetracycline as inputs.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Tetraciclina
/
Cadmio
/
Beta-Ciclodextrinas
/
Fluorescencia
/
Hidroxiquinolinas
Idioma:
En
Revista:
Methods Appl Fluoresc
Año:
2020
Tipo del documento:
Article
País de afiliación:
Irán