申请人:Roche Diagnostics Corporation
公开号:US05986066A1
公开(公告)日:1999-11-16
A biologically recognizing layer on a solid phase consisting of biologically recognizing molecules comprising regions which recognize a substance to be analyzed and regions which do not recognize a substance to be analyzed. The biologically recognizing molecules are aligned on a suitably modified surface by means of molecular regions which do not recognize the substance to be analyzed. The biologically recognizing molecules are cross-linked with the aligning surface and are consequently covalently altered. The molecular regions recognizing the substance to be analyzed are not altered by the covalent bonding and retain their bonding activity. The layer is produced in a novel two-stage method. In the first step, the biologically recognizing molecules, the aligning molecules and carrier molecules are adsorbed. In the second step, the molecules are covalently anchored by cross-linking. Cross-linking is brought about by photolytic activation of a water soluble reagent bonded to the carrier molecules.
固相上的生物识别层由生物识别分子组成,包括识别待分析物质的区域和不识别待分析物质的区域。这些生物识别分子通过不识别待分析物质的分子区域在经过适当修改的表面上排列。这些生物识别分子与对齐表面交联,并因此发生共价改变。识别待分析物质的分子区域不受共价键合的影响,保留其结合活性。该层是通过一种新颖的两阶段方法制备的。在第一步中,生物识别分子、对齐分子和载体分子被吸附。在第二步中,这些分子通过交联被共价锚定。交联是通过与载体分子结合的水溶性试剂的光解激活实现的。