Journal
FOOD CHEMISTRY
Volume 434, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2023.137260
Keywords
Salicylic acid; Fluorescent probe; CQDs; MOFs; Curcumin
Ask authors/readers for more resources
In this study, a ratiometric fluorescent probe was developed for the sensitive detection of salicylic acid in rice. The probe showed low detection limit and superior performance, making it a promising tool for environmental monitoring.
Herein, a ratiometric fluorescent probe was developed for sensitive detection of salicylic acid (SA) in rice using silk-derived carbon quantum dots @ Curcumin @ iron-based metal organic framework (SCQDs@Cur@Fe-MOFs). Fe-MOFs with porous structure not only provided holes for SCQDs to evade self-aggregation of SCQDs, but Fe2+ ions from MOFs was ingeniously employed to capture active sites of Cur, solving the problem of lacking sufficient specificity of Cur to SA while converting weak response signal to amplified turn on mode. Upon exposed to SA, the probe interacted with SA to form Cur-Fe2+-SA ternary complex, which inhibited the internal filtration effect between Cur and SCQDs, and triggered a cascade of response signaling. With this strategy, the proposed probe achieved sensitive determination of salicylic acid in rice with detection limit as low as 0.14 mu mol/L. This study provides unique insight into constructing economical and eco-friendly fluorescent sensor for SA detection with superior performance.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available