Most cells attached onto the PHBV films 2 h after seeding, and extended well and acquired a spindle fibrecyte-like morphology 3 d later.

• 培养接种2周后，骨髓基质干细胞增殖明显，呈梭形密布于膜状PHBV上。培养接种3周后，骨髓基质干细胞增殖较第二周无明显变化。