Sandwich structure magnetic composite micro ball with functional shell layer, its preparing method and use

A technology of magnetic composite microspheres and sandwich structure, which can be applied to the preparation methods of peptides, biochemical equipment and methods, chemical instruments and methods, etc., and can solve problems such as insufficient magnetic characteristics.
CN1943560AInactive Publication Date: 2007-04-11BEIJING NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING NORMAL UNIVERSITY
Publication Date
2007-04-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a type of sandwich structure magnetic composite microspheres with functional shells. Said magnetic composite microspheres in structure is characterized by the whole body is as sandwich structure, kernel is as macromolecule microspheres, the middle layer is as magnetic nanoparticles, the external layer is as functional shells of certain thickness.
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Description

field of invention

[0001] The invention relates to a class of sandwich-structured magnetic composite microspheres with a functionalized shell, a preparation method and application thereof, and belongs to the field of novel magnetic functional composite materials. Background technique

[0002] As a new class of functional composite materials, magnetic composite microspheres have increasingly extensive and important applications in cell separation, protein purification, nucleic acid extraction, clinical diagnosis, targeted drug delivery, and immobilized enzymes.

[0003] Since the emergence of magnetic composite microspheres in the late 1970s, they have developed rapidly in the past 30 years. Various magnetic microspheres that have been listed in the literature have been sold as products in the market. In terms of the composition of magnetic composite microspheres, inorganic materials such as silica and polymer materials such as polystyrene have been tried as matrix materials,...

Claims

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