Abstract:
A method for manufacturing a mixed-mode chromatography medium is provided. The method can include, for example, oxidizing diol groups on diol-functionalized solid particles having pores of a median diameter of 0.5 micron or greater with substantially no pores of 0.1 micron or less in diameter and having a diol density of from about 200 to about 300 μmol/mL to aldehyde groups, thereby converting said diol-functionalized solid particles to aldehyde-functionalized solid particles; and coupling amine-functionalized ligands to said aldehyde-functionalized solid particles, said amine-functionalized ligands comprising an amine-substituted hydrophobic group joined to an acid moiety selected from the group consisting of a carboxyl group and a sulfo group.
Abstract:
Proteins are purified by a mixed-mode chromatography system formed by attaching a ligand comprising benzamidoacetic acid to a large-pore support matrix, the only linkage between the ligand and the support matrix being a chain having a backbone of no more than three atoms between a phenyl ring and the support matrix.
Abstract:
Proteins are purified by a mixed-mode chromatography system formed by attaching a ligand with cation exchange and hydrophobic functionalities to a large-pore support matrix, the only linkage between the ligand and the support matrix being a chain having a backbone of no more than three atoms between the hydrophobic group and the support matrix.
Abstract:
Proteins are purified by a mixed-mode chromatography system formed by attaching a ligand with cation exchange and hydrophobic functionalities to a large-pore support matrix, the only linkage between the ligand and the support matrix being a chain having a backbone of no more than three atoms between the hydrophobic group and the support matrix.