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Zeolitic imidazolate framework-encapsulated zinc porphyrin photoresponsive nanozyme for colorimetric/fluorescent dual-mode sensing of glyphosate.
- Source :
-
Talanta [Talanta] 2024 Aug 15; Vol. 276, pp. 126253. Date of Electronic Publication: 2024 May 12. - Publication Year :
- 2024
-
Abstract
- A novel zeolitic imidazolate framework-encapsulated zinc porphyrin (ZnTCPP@ZIF-90) photoresponsive nanozyme is proposed for the colorimetric/fluorescent dual-mode visual sensing of glyphosate (Gly). ZnTCPP@ZIF-90 exhibits photoresponsive oxidase-like activity and fluorescence quenching behavior. Meanwhile, the outer ZIF-90 layer can be selectively destroyed by Gly, causing the release of free ZnTCPP, resulting in the enhanced enzyme-like activity as well as fluorescence emission. The constructed ZnTCPP@ZIF-90 was successfully used for the colorimetric/fluorescent dual-mode detection of Gly. Additionally, the colorimetric and fluorescent images information captured by the smartphone were converted to color intensity (HSV/RGB values), with limits of detection of 0.27 μg/mL and 0.19 μg/mL, respectively. The proposed dual-mode sensor exhibits excellent selectivity and reliability for detecting Gly, and can be successfully applied to the analysis of real samples such as tap water, lake water, and fruit washing water. The current research efforts are expected to provide new perspectives for designing highly active photoresponsive nanozymes and their stimuli-responsive sensing systems, paving the way for their applications in portable dual-mode chemical sensing and environmental monitoring.<br />Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.<br /> (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Subjects :
- Water Pollutants, Chemical analysis
Spectrometry, Fluorescence methods
Photochemical Processes
Limit of Detection
Herbicides analysis
Fluorescence
Smartphone
Glycine analogs & derivatives
Glycine chemistry
Glycine analysis
Glyphosate
Colorimetry methods
Zeolites chemistry
Imidazoles chemistry
Metalloporphyrins chemistry
Metal-Organic Frameworks chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 1873-3573
- Volume :
- 276
- Database :
- MEDLINE
- Journal :
- Talanta
- Publication Type :
- Academic Journal
- Accession number :
- 38759359
- Full Text :
- https://doi.org/10.1016/j.talanta.2024.126253