Many different substrates are used in tissue engineering as platforms to enhance cell attachment, proliferation and activity, either in-vitro, to multiply specific cell lines, or in-vivo, to induce shorter healing time of injured or missing tissue. However, their hydrophobicity and lack of specific functionalities make them non-ideal for cell adhesion and growth. Treating the surfaces by exposing them to a series of steps including, but not limited to, a diazonium based wet chemistry allows one or more functional groups to be applied to the surface improving cell adhesion and growth. Embodiments of the invention exploiting PDLLA, PMMA and roughed PEEK are demonstrated including both a one-stage and a two-stage process, and at times a vacuum treatment, allowing modification of inner and outer surfaces.
在组织工程学中,许多不同的基底都被用作增强细胞附着、增殖和活性的平台,既可用于体外繁殖特定的
细胞系,也可用于体内缩短受伤或缺失组织的愈合时间。然而,由于疏
水性和缺乏特定功能,它们并不适合细胞的粘附和生长。通过一系列步骤(包括但不限于重氮基湿
化学)对表面进行处理,可将一个或多个官能团应用于表面,从而改善细胞的粘附和生长。本发明展示了利用 PDL
LA、P
MMA 和粗化 PEEK 的实施方案,包括一个阶段和两个阶段的工艺,有时还采用真空处理,允许对内表面和外表面进行改性。