申请人:Lugade Ananda G.
公开号:US20110086431A1
公开(公告)日:2011-04-14
Various methods for altering surface characteristics of a microsphere are provided. One method includes coupling an enolic acid to the microsphere to modify the surface characteristics of the microsphere. The surface characteristics may include charge density and/or pKa. A reagent can be coupled to the microsphere via the enolic acid. The reagent may include a biomolecule. The modified surface characteristics may increase a stability of the reagent when the reagent is coupled to the microsphere. The modified surface characteristics may also improve performance of an assay carried out with the microsphere. Another embodiment relates to a microsphere that includes an enolic acid coupled to a polymer core of the microsphere such that the enolic acid modifies surface characteristics of the microsphere. A reagent can be coupled to the microsphere via the enolic acid.
提供了多种改变微球表面特性的方法。其中一种方法包括将烯醇酸偶联到微球上,以修改微球的表面特性。表面特性可能包括电荷密度和/或pKa值。可以通过烯醇酸将试剂偶联到微球上。试剂可以包括生物分子。修改后的表面特性可以增加试剂与微球偶联时的稳定性。修改后的表面特性还可以提高使用微球进行的检测的性能。另一种实施方式涉及微球,其包括将烯醇酸偶联到微球的聚合物核心上,以使烯醇酸修改微球的表面特性。试剂可以通过烯醇酸与微球偶联。