Method for detecting an okadaic acid based on a near-infrared photoelectric composite material
US11828723B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 21, 2021 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Jun 8, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/5308
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present application proposes a method for detecting an okadaic acid based on a near-infrared photoelectric composite material, which includes the following steps: synthesizing NaYF4: Yb, Tm up-conversion nanoparticles (UCNPs) and a semiconductor material flower-like tungsten oxide (WO3) by a simple high-temperature solvothermal method; coupling the UCNPs with an okadaic acid monoclonal antibody through a classic amidation reaction to construct a competitive near-infrared photoelectrochemical immunosorbent assay (cNIR-PECIA) for okadaic acid detection. In addition, the present application employs a screen-printed carbon electrode (SPE) as the working electrode, and thus only requires a small amount of electrolytes, which is low-cost and maintenance-free.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.