A turn-on upconversion fluorescence sensor for acrylamide in potato chips based on fluorescence resonance energy transfer and thiol-ene Michael addition
•A novel method for the determination of acrylamide was developed.•The sensor was based on FRET between UCNPs and RBD regulated by GSH.•Acrylamide was sensing by thiol-ene Michael addition reaction between GSH and AA.•The sensor has good results on the sensitivity and practicality for potato chips....
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| Published in: | Food chemistry Vol. 351; p. 129215 |
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| Main Authors: | , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
England
Elsevier Ltd
30.07.2021
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| Subjects: | |
| ISSN: | 0308-8146, 1873-7072, 1873-7072 |
| Online Access: | Get full text |
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| Summary: | •A novel method for the determination of acrylamide was developed.•The sensor was based on FRET between UCNPs and RBD regulated by GSH.•Acrylamide was sensing by thiol-ene Michael addition reaction between GSH and AA.•The sensor has good results on the sensitivity and practicality for potato chips.
This study describes a turn-on upconversion fluorescence sensor for the detection of acrylamide (AA) based on glutathione (GSH) modulated turn-on fluorescence strategy. Polyethyleneimine-modified upconversion nanoparticles were first prepared by the hydrothermal method and then Rhodamine B derivative (RBD) was loaded on their surface through non-covalent bonding. The GSH coupled with RBD and strongly quenched the upconversion fluorescence via fluorescence resonance energy transfer. Upon addition of tris (2-carboxyethyl) phosphine, the thiol-ene Michael addition reaction between GSH and AA was efficiently catalyzed, resulted in the quenched fluorescence triggered on. Under the optimum conditions, a linear detection range from 0.1 to 104 μM was implemented for AA with a limit of detection of 0.68 nM and great sensitivity was observed. Importantly, the proposed sensor was evaluated for spiked potato chips samples with a satisfactory result in contrast to high-performance liquid chromatography, confirmed its applicability for the rapid detection of AA. |
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| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 0308-8146 1873-7072 1873-7072 |
| DOI: | 10.1016/j.foodchem.2021.129215 |