It was found that the cell granularity did not change significantly in PEG-PCL block copolymer yet increased substantially in PCL-PAA (non PEG grafted copolymer).

• 与PEG-PCL交互作用后发现巨噬细胞的颗粒性并未显著增加，但在PCL-PAA（非聚乙醇化高分子）交互作用下细胞颗粒性明显增加。