The materials and methods are particularly useful in media for cell culturing but have other applications as well, such as in tissue engineering. The materials comprise at least one growth factor or other cell growth facilitating substance contained within a polymeric structure which can incorporate the substance and allow controlled release of the substance. Alginate materials are particularly useful as the polymeric structure. Another feature described herein is the above-described materials provided in a lyophilized (freeze-dried) form which greatly enhances their storage life.
这些材料和方法尤其适用于
细胞培养的
培养基,但也有其他应用,如组织工程。这些材料包括至少一种生长因子或其他促进细胞生长的物质,这些物质包含在一种聚合物结构中,这种聚合物结构可以吸附这种物质,并控制这种物质的释放。
藻酸盐材料作为聚合物结构尤其有用。本文所述材料的另一个特点是以冻干形式提供,这大大提高了材料的储存寿命。