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Novel asymmetric composite scaffolds of chitosan superfine powder (CSP) and biomedical polyurethane (BPU) were prepared by an immersion‐precipitation phase inversion method. Effects of polyvinylpyrrolidone (PVP) as a pore‐forming agent on the structure and performance of the CSP/BPU composite scaffolds were investigated. The morphology and structure of the composite scaffolds were verified via scanning...
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