Preparation method of PVP modified prussian blue nanometer material

Abstract

The invention provides a preparation method of a PVP modified prussian blue nanometer material. The method concretely comprises the following steps of (1) dissolving PVP and precursors into water formixing; (2) adding hydrochloric acid for regulating the pH to an acid state; (3) performing reaction under the electromagnetic induction heating; (4) performing ethanol water centrifugal washing, dialysis and freeze drying to obtain a finished product. According to the method, magnetic inner heat is used for replacing an ordinary external heating mode; in a shorter reaction time, the high-qualityprussian blue nanometer material can be obtained. The PVP modified prussian blue nanometer material prepared by the method has the advantages of small polydispersity coefficient, uniform particle dimension distribution, higher magnetism and higher nanometer enzymatic activity.

Description

technical field

[0001] The invention relates to a preparation method of a polyvinylpyrrolidone (PVP) modified Prussian blue nano material, specifically, comprising a method for preparing a PVP modified Prussian blue nano material by using an alternating magnetic field-induced magneto-induced internal heat method. Background technique

[0002] Due to its good photoelectric properties, unique porous structure and biocompatibility, Prussian blue has broad application prospects in the fields of catalysis, biosensors, molecular magnets, photoacoustic imaging, drug delivery, and photothermal therapy. Prussian blue has good biocompatibility, and there are related drugs on the market. In 2003, FDA approved Radiogardase, which uses insoluble Prussian blue as the active ingredient, for the treatment of cesium-137 and thallium radiation pollution. Oral administration, the dosage is 3-9g / day, and has good therapeutic effect. In addition, in recent years, further research by our researc...

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