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磁性高分子微球可结合抗体和其它生物特性分子,如细胞、酶、毒素、激素、生长因子、核酸、药物和放射性同位素等,广泛用于生物医学研究和临床实践.葡聚糖包埋氧化铁制备的磁性毫微粒既能通过其活性基团连接具有生物活性的物质,又能通过热运动保持其在溶液中的稳定性,并能够在磁场中不被永久磁化.葡聚糖磁性毫微粒由葡聚糖、三氯化铁和二氯化铁水溶液在碱性条件下共沉淀而形成,用激光光散射系统测定其有效粒径.(1)葡聚糖浓度的影响:葡聚糖在磁性粒子形成过程中起着隔离作用,随着葡聚糖浓
Magnetic polymer microspheres are widely used in biomedical research and clinical practice to bind antibodies and other biomolecules such as cells, enzymes, toxins, hormones, growth factors, nucleic acids, drugs and radioisotopes. Magnetic iron nanoparticles prepared by both the activity of the active substance to connect the biologically active substances, but also by thermal motion to maintain its stability in solution, and can not be permanently magnetized in the magnetic field. Dextran magnetic nanoparticles It was formed by coprecipitation of dextran, ferric chloride and ferric chloride in alkaline condition, and the effective particle size was determined by laser light scattering system. (1) Effect of dextran concentration: Magnetic particles play a role in isolation, with dextran concentration