shows
the absorbance values of the MTT assay of cultured cells on polymer
hydrogels with different porosity after 3 days culture. The absorbance
value of the blank group (BG) was 0.825, the absorbance of control
group was 0.659, whose relative growth rate (79.88%) was within the
normal range [36,37]. For the series of polymer hydrogels with differentCell attachment on the hydrogels