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中文摘要：
采用水刺法制备了多孔丝素蛋白（SF）支架,通过原位矿化法制备了纳米羟基磷灰石（HAP）/丝素蛋白复合材料.HAP呈现均匀棒状结构,而没有丝素蛋白支架时HAP仅形成颗粒状结构,这表明蛋白支架可诱导HAP形成均匀棒状结构,这可能是源于丝素蛋白中羧基和溶液中Ca2＋ 的静电作用;丝素蛋白支架起到了复合材料基材和HAP原位生长的高分子模板双重作用.采用红外光谱、X 射线衍射和力学性能测试对复合材料的结构性能进行了表征,红外谱图表明,HAP中的PO4^3- 与SF中的-NH2存在强烈的氢键相互作用,而X射线衍射图谱则表明复合材料中SF的保持了β折叠结构和结晶性能,使得复合材料具有良好的力学性能和多孔性能,有利于成骨细胞在支架上的增殖,同时,该方法制备的复合材料力学性能好,可大面积制备,成本低、制备方便,易于实现工业化,可望广泛用于骨修复支架材料.
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