Magnetic fluid for biological medicine and its preparing method

A biomedicine and magnetic fluid technology, applied in the fields of nanotechnology and biomedicine, can solve the problems of large particle size of magnetic starch composite particles, limited application, wide particle size distribution, etc., achieve good biocompatibility, reduce production costs, Simple and easy preparation method
CN1822254AInactive Publication Date: 2006-08-23EAST CHINA NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
EAST CHINA NORMAL UNIVERSITY
Publication Date
2006-08-23
Estimated Expiration
Not applicable · inactive patent
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Abstract

Present invention relates to magnetic fluids for biologic medicine. It contain water, magnetic nano granule and hydrophilicity organic high polymer substance, wherein hydrophilicity organic high polymer substance covered on magnetic nano granulometric surface, hydrophilicity organic high polymer magnetic nano granule homodisperse in water phase, magnetic nano granule being magnetic inorganic nano granule, hydrophilicity organic high polymer substance being water-solubility whose coating layer surface having functional group hydroxy-OH or aldehyde group-CHO, magnetic inorganic nano granule being particle diameter of 5-20 nm of Fe<3>0<4>, the particle diameter of magnetic inorganic nano granule compound granule covered with water-solubility starch bring less than 50nm.Said magnetic fluids has good biologic consistency, biodegradability, suspension stability and magnetic responsibility, can be used in cell separation, tumour heat treatment, nuclear magnetic resonance radiography imaging and target drug delivery etc biomedical field. Said invention provides two magnetic fluids preparation methods.
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Description

technical field

[0001] The invention relates to a magnetic fluid for biomedicine and a preparation method thereof, belonging to the fields of nanometer science and technology and biomedicine. Background technique

[0002] Magnetic fluid, also known as magnetic liquid, is one of the important application fields of nanomaterials. It has both the magnetism of solid materials and the fluidity of liquid materials, and is a new type of liquid functional material. Early ferrofluids were mainly used in sealing, lubrication, damping, grinding, separation, printing and printing, and environmental protection, etc., and achieved great success. In recent years, with the development of nanoscience and technology, magnetic nanoparticles have broad application prospects in the field of biomedicine due to their biocompatibility and special magnetic properties, such as immobilized enzymes, targeted drugs, controlled release, nuclear magnetic Resonance contrast imaging, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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