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    • 4. 发明授权
    • Lysate clearance and nucleic acid isolation using silanized silica matrices
    • 裂解液清除和使用硅烷化二氧化硅基质的核酸分离
    • US06787307B1
    • 2004-09-07
    • US09711782
    • 2000-11-13
    • Rex M. BitnerDaniel J. SimpsonRoderick G. FlemmingSusan C. Koller
    • Rex M. BitnerDaniel J. SimpsonRoderick G. FlemmingSusan C. Koller
    • C12Q168
    • C12N15/1006C12N1/02C12N15/1013C12Q1/6806Y10T436/143333
    • A method is provided for using a silanized silica matrix to isolate a target nucleic acids, such as plasmid DNA, fragments of DNA, chromosomal DNA, or RNA from contaminants, including proteins, lipids, cellular debris, or non-target nucleic acids. The silanized silica matrix comprises a silica based solid phase and a plurality of silane ligands covalently attached to the surface of the solid phase. Non-target material adsorbs to the silanized silica matrix in the presence of a sufficient concentration of chaotropic salt, while target nucleic acids adsorb to the matrix under other solution conditions. The method of using the silanized silica matrix of the present invention can be used to clear solutions of disrupted biological material, and to isolate nucleic acids therefrom or from other solutions containing nucleic acids and at least one contaminant.
    • 提供了一种使用硅烷化二氧化硅基质从污染物(包括蛋白质,脂质,细胞碎片或非目标核酸)分离靶核酸(如质粒DNA),DNA片段,染色体DNA或RNA的方法。 硅烷化二氧化硅基质包含二氧化硅基固相和共价连接到固相表面的多个硅烷配体。 非目标物质在足够浓度的离液盐存在下吸附到硅烷化二氧化硅基质上,而靶核酸在其它溶液条件下吸附到基质上。 使用本发明的硅烷化二氧化硅基质的方法可用于清除破坏的生物材料的溶液,并从其中分离核酸或从其它含有核酸和至少一种污染物的溶液中分离出核酸。