The present application describes a class of peptides comprising from (2) to (12) amino acid residues, wherein: the N-terminus of the peptide is linked to an optionally substituted, fused polycyclic group comprising an aromatic ring; at least one amino acid residue has a hydrophobic side chain; at least two amino acid residues have a cation-containing side chain, or at least one amino acid residue has two or more cation-containing side chains, or at least one amino acid residue has one or more side chains comprising two or more cations; and the net charge of the peptide is positive at a pH of from about (4) to about (10). The present application also describes hydrogels and cell culture substrates comprising the peptides, as well as the use of the cell culture substrates for culturing cells.
本申请描述了一类肽,包括(2)到(12)个
氨基酸残基,其中:肽的N-末端与一个可选择替代的、融合的多环芳香环团相连;至少一个
氨基酸残基具有疏
水侧链;至少两个
氨基酸残基具有含阳离子的侧链,或者至少一个
氨基酸残基具有两个或更多含阳离子的侧链,或者至少一个
氨基酸残基具有一个或多个含有两个或更多阳离子的侧链;并且在约为(4)到约为(10)的pH下,肽的净电荷为正。本申请还描述了包含这些肽的
水凝胶和
细胞培养基质,以及利用
细胞培养基质培养细胞的用途。