The microstructure and porosity were observed under scanning electron microscope, and the pore diameter, rate of water absorption, and surface density were determined.
以扫描电镜观察支架的表面特征，测定支架的孔径值、材料的吸水率及表观密度。
The scaffolds were investigated by histological staining, SEM observation and porosity measurement, water absorption rate analysis. MTT test was also done to assess cytotoxicity of the scaffolds.
冷冻冻干后，对支架材料进行组织学及扫描电镜观察，测定支架孔径和孔隙率、吸水率，并采用MTT法分析支架浸提液毒性。
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