Construction and application of a competitive dual antifouling sensor based on efficient europium-based clusters

Abstract

The application discloses construction and application of a competitive dual-antifouling sensor based on efficient europium-based clusters, and belongs to the technical field of biochemical analysis, photochemistry and nanomaterial science.In the application, methyl methacrylate hyaluronic acid-carboxybetaine methyl methacrylamide hydrogel is used as an antifouling substrate, and FeCu-MOF is used as a dual-functional probe integrating antifouling and catalysis, so that a competitive dual-antifouling sensor is constructed.In detail, the hydrogel forms a physical barrier on the surface of an electrode, can prevent interference adsorption of pollutants, and improves the stability of the sensor.In addition, the dual-functional FeCu-MOF can amplify the luminescence signal of the europium-based nanocluster through catalysis of K2S2O8.Based on the above strategy, through competition between a 9-cis astaxanthin standard sample and an antigen thereof, the constructed sensor realizes sensitive detection of the 9-cis astaxanthin, and provides an effective strategy for chiral recognition and content monitoring of astaxanthin in cosmetic raw materials.

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