A process for separating aggregated proteins from monomeric proteins in a biological solution, the process including: providing at least one filter element having a contacting surface, wherein the filter element comprises filter media comprising: a porous substrate; and disposed on the porous substrate, a polymer comprising a hydrocarbon backbone and a plurality of pendant groups attached to the hydrocarbon backbone, wherein each of a first plurality of pendant groups comprises: (1) at least one acidic group or salt thereof; and (2) a spacer group that directly links the at least one acidic group or salt thereof to the hydrocarbon backbone by a chain of at least 6 catenated atoms; and allowing an initial biological solution to contact the contacting surface of the filter element under conditions effective to separate the aggregated proteins from the monomeric proteins such that a final biological solution includes purified monomeric proteins.
一种从
生物溶液中分离聚集蛋白质和单体蛋白质的方法,该方法包括:提供至少一个具有接触表面的过滤元件,其中过滤元件包括包括过滤介质的多孔基质;并且在多孔基质上设置了一种聚合物,该聚合物包括一个烃骨架和附着在烃骨架上的多个偏基团,其中第一多个偏基团中的每一个包括:(1)至少一个酸性基团或其盐;和(2)一个间隔基团,通过至少6个串联原子的链将至少一个酸性基团或其盐直接连接到烃骨架;并且允许初始
生物溶液在有效条件下接触过滤元件的接触表面,以使聚集蛋白质与单体蛋白质分离,从而得到含有纯化单体蛋白质的最终
生物溶液。