Preparation method of nanoscaled dye@ZIF-8-based colorimetric sensor and application thereof in food quality evaluation
US12287294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2024 |
| Grant date | Apr 29, 2025 |
| Priority date | — |
| Expiry date | Aug 9, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/80
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of preparing a nanoscaled dye@ZIF-8-based colorimetric sensor is provided, in which a ZIF-8 nanomaterial is first prepared from Zn(CH3COO)2 and the 2-methylimidazole, and then the ZIF-8 nanomaterial is dispersed with ethanol and mixed with a colorimetric solution. The resultant mixed solution is added with polyethylene glycol-300 and applied to a substrate to obtain the nanoscaled dye@ZIF-8-based colorimetric sensor. This application further provides an evaluation method using the nanoscaled dye@ZIF-8-based colorimetric sensor, in which a back propagation neural network is established as the food quality evaluation model to evaluate the food quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.