为了改善内皮细胞粘附和生长的壳聚糖，细胞粘附肽甘氨酰甘氨酸一天冬氨酸（ GRGD ）是光化学接枝到其表面。
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In this article two methods were used to connect active group on the surface of PET material. DCC and EDC were used to graft peptide. Method A is to graft GRGD on permanent dot of the solid surface.
探讨了在PET膜上以两种方法引入活性基团作为接口，分别选用DCC、EDC为接肽试剂，以A法—固相表面原位接枝四肽GRGD；
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