Smartphone-assisted fluorescent sensor for the visualization and quantitative detection of doxycycline and L-arginine.
Food Chem
; 459: 140365, 2024 Nov 30.
Article
de En
| MEDLINE
| ID: mdl-39024874
ABSTRACT
A novel smartphone-assisted fluorescent sensor based on europium/zirconium metal-organic framework (Eu0.5/Zr0.5-MOF) was developed for the fast and sensitive determination of doxycycline (DOX) and L-arginine (Arg). After the addition of DOX, the fluorescence of Eu0.5/Zr0.5-MOF was quenched owing to the inner filter effect (IFE). When Arg was introduced into the Eu0.5/Zr0.5-MOF@DOX complex system, the fluorescence was recovered because the interaction between Arg and Eu0.5/Zr0.5-MOF@DOX weakened the IFE. Moreover, the Eu0.5/Zr0.5-MOF produced continuous fluorescence color changes for the visual measurement of DOX and Arg. The fluorescent probe for DOX and Arg offered broad linear ranges of 0.05-80 and 0.1-60 µg/mL, respectively, with detection limits as low as 2.07 and 67.5 ng/mL. The proposed method was successfully applied to monitor DOX in eggs and Arg in human serum. This work provides a powerful platform for the real-time and visual analysis of DOX and Arg in food and biological samples.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Arginine
/
Doxycycline
/
Colorants fluorescents
/
Ordiphone
Limites:
Animals
/
Humans
Langue:
En
Journal:
Food Chem
/
Food chem
/
Food chemistry
Année:
2024
Type de document:
Article
Pays d'affiliation:
Chine
Pays de publication:
Royaume-Uni