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    • 5. 发明授权
    • Latex-antigen-antibody complexes for immunoassay
    • 用于免疫测定的乳胶抗原 - 抗体复合物
    • US4962154A
    • 1990-10-09
    • US218782
    • 1988-07-14
    • Douglas K. PollockCharles J. McDonaldWilliam E. CohrsJohn M. Reno
    • Douglas K. PollockCharles J. McDonaldWilliam E. CohrsJohn M. Reno
    • C08F8/04C08F212/04G01N33/543
    • G01N33/54313C08F212/04C08F8/04
    • A latex partice comprising a vinyl aromatic monomer and an vinyl acrylate ester monomer which is modified by a protein binding modifying monomer to facilitate the binding of a protein via coupling techniques. These latex particles are useful in diagnostic test applications. The vinyl acrylate ester monomer and a vinyl aromatic monomer are dispersed in a ratio between 1:3 to 3:1 of vinyl acrylate ester monomer to vinyl aromatic monomer in an aqueous phase containing a protein binding modifying monomer. The protein modifying monomer can be a vinyl carboxylic acid, such as a acrylic acid in a concentration of from about 0.5 percent to about 10 percent of the monomers. The dispersion is subjected to emulsion polymerization to provide a latex particle in a size range from 0.1 to 1 micron. The latex particle is sensitized with an antibody or antigen via coupling techniques. The resulting sensitized latex particles combine attributes of each monomer to provide utility in difficult protein systems to form latex antigen/antibody complexes. The products of the invention may be used in a variety of diagnostic applications.
    • 包含乙烯基芳族单体和丙烯酸乙烯酯单体的胶乳部分,其由蛋白质结合修饰单体修饰以促进通过偶联技术结合蛋白质。 这些胶乳颗粒可用于诊断测试应用。 乙烯基丙烯酸酯单体和乙烯基芳族单体在含有蛋白质结合改性单体的水相中以1:3至3:1的乙烯基丙烯酸酯单体与乙烯基芳族单体的比例分散。 蛋白质修饰单体可以是乙烯基羧酸,例如浓度为单体约0.5%至约10%的丙烯酸。 将分散体进行乳液聚合以提供0.1至1微米尺寸范围内的胶乳颗粒。 胶乳颗粒通过偶联技术用抗体或抗原致敏。 所得到的敏化乳胶颗粒结合各单体的特性,以提供在困难的蛋白质体系中的用途以形成胶乳抗原/抗体复合物。 本发明的产品可用于各种诊断应用。