申请人:THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
公开号:US20150104427A1
公开(公告)日:2015-04-16
A method of producing a hydrogel compromising a spatially-controlled, three-dimensional distribution of one or more bioactive signals is provided. The method compromises illuminating the hydrogel, wherein the hydrogel compromises a polymer bound to a peptide comprising a photolabile protected amino acid, wherein at least one portion of the hydrogel is illuminated to deprotect the protected amino acid, thereby converting the protected amino acid to a deprotected amino acid. Preferably, the deprotected amino acid is a substrate for an enzyme in at least one portion of the hydrogel. The method further comprises the step of contacting the hydrogel with the enzyme and a peptide comprising a bioactive signal, wherein the enzyme can form a bond between the substrate and the peptide comprising the bioactive signal, thereby producing a hydrogel compromising a plurality of bioactive signals occupying three dimensions of the hydrogel within at least one portion of the hydrogel subjected to illumination.
本发明提供了一种生产具有空间控制的、三维分布一种或多种生物活性信号的水凝胶的方法。该方法包括照射水凝胶,其中水凝胶包括与多肽结合的聚合物,该多肽包括光敏保护氨基酸,其中至少水凝胶的一部分被照射以去除保护氨基酸,从而将保护氨基酸转化为去保护氨基酸。优选地,去保护氨基酸是水凝胶中至少一部分中酶的底物。该方法进一步包括将酶和含有生物活性信号的多肽接触水凝胶,其中酶能够在底物和含有生物活性信号的多肽之间形成键,从而在至少一部分被照射的水凝胶中产生占据三维水凝胶内的多种生物活性信号的水凝胶。