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    • 2. 发明授权
    • Isolation of biological materials
    • 生物材料的分离
    • US5665582A
    • 1997-09-09
    • US229288
    • 1994-04-18
    • Albert P. KauschSandya Narayanswami
    • Albert P. KauschSandya Narayanswami
    • C12N15/10C12Q1/68G01N33/543G01N35/00C12N7/02C08B37/04C12N11/06
    • G01N33/54353C12N15/1006C12N15/1013C12Q1/6834G01N35/0098Y10S435/82
    • A method for the isolation and sorting of biological materials has been developed. Biological material includes chromosomes, segments of chromosomes, cell organelles, or other minute cellular components. The biological material is separated from the cellular milieu, if necessary, and anchored to a support. Examples of a support are glass coverslips, glass or polymer beads. The anchoring is by means of a reversible polymer and cross-linking system. The supported biological material may then be labelled with compositions capable of binding to said material, and with magnetic particles. Examples of the binding material include nucleic acid probes and antibodies. An example of the antibodies would be those directed to histones. Other labels, for example, fluorescein-biotin-avidin may be used. The material may be released from the support and sorted by a magnetic force. This method is an alternative to flow cytometry and presents numerous advantages in terms of time, resolution, purity, and preservation of the structure of the biological material during isolation and separation.
    • 已经开发了用于分离和分选生物材料的方法。 生物材料包括染色体,染色体片段,细胞器或其他微细胞组分。 如果需要,将生物材料从细胞环境中分离并锚定到载体上。 支撑体的实例是玻璃盖玻片,玻璃或聚合物珠。 锚固是借助可逆聚合物和交联体系。 然后可以用能够结合所述材料的组合物和磁性颗粒来标记所支持的生物材料。 结合材料的实例包括核酸探针和抗体。 抗体的一个例子是针对组蛋白的那些。 可以使用其它标记,例如荧光素 - 生物素 - 抗生物素蛋白。 材料可以从支撑件释放并且通过磁力分选。 该方法是流式细胞术的替代方法,并且在分离和分离期间在生物材料的结构的时间,分辨率,纯度和保存方面呈现许多优点。