Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5030848 | Biosensors and Bioelectronics | 2017 | 27 Pages |
Abstract
A dual-emission mesoporous structured molecularly imprinted sensor was designed for specific recognition and sensitive ratiometric detection of diniconazole â (DNZ). In this probe, a carbon dot-doped silica core serves as a reference and provides a built-in correction for environmental effects. CdTe/CdS quantum dots (QDs) are encapsulated in the pores of the mesoporous silica and provide analytical signal. The fluorescence of CdTe/CdS QDs is selectively quenched in the presence of DNZâ, accompanied by a visual green-to-blue color switch. The sensor has a linear response in the range of 20-160 µg Lâ1 with a detection limit of 6.4 µg Lâ1 and excellent recognition specificity for DNZ over its analogs. The applicability of the developed method for analysis of real samples was evaluated through the determination of DNZ in soil, river water and wastewater samples and satisfactory recoveries were obtained.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Mohammad Amjadi, Roghayeh Jalili,