Chinese Journal of Tissue Engineering Research ›› 2023, Vol. 27 ›› Issue (25): 3999-4005.doi: 10.12307/2023.412
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Yu Aimin, Xu Ting, Zhu Yunying, Liang Jianqiang, Wu Donghui
Received:
2022-04-20
Accepted:
2022-06-13
Online:
2023-09-08
Published:
2023-01-17
Contact:
Wu Donghui, Associate chief physician, Stomatology Hospital of Haizhu district, Guangzhou 510405, Guangdong Province, China
About author:
Yu Aimin, Master, Stomatology Hospital of Haizhu district, Guangzhou 510405, Guangdong Province, China
Supported by:
CLC Number:
Yu Aimin, Xu Ting, Zhu Yunying, Liang Jianqiang, Wu Donghui. Physicochemical properties of chitosan/bone powder/cellulose nanocrystals scaffold loaded with antimicrobial peptides for jaw repair[J]. Chinese Journal of Tissue Engineering Research, 2023, 27(25): 3999-4005.
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2.4 各组支架吸水率测试结果 4种支架的吸水率测试结果见图5A。羧甲基壳聚糖、羧甲基壳聚糖/纳米微晶纤维素、羧甲基壳聚糖/纳米微晶纤维素/骨粉、羧甲基壳聚糖/纳米微晶纤维素/骨粉/抗菌肽支架的吸水率的分别为(728.6±24.7)%,(656.2±19.3)%,(604.9±23.5)%,(698.8±53.8)%。 2.5 各组支架力学性能测试结果 4种支架的拉伸强度、断裂伸长率和压缩强度-应变曲线,见图5B-D。4种支架的抗拉强度范围为0.7-0.9 MPa,断裂伸长率都在8%-10%之间,相互之间的差异较小。羧甲基壳聚糖/纳米微晶纤维素/骨粉和羧甲基壳聚糖/纳米微晶纤维素/骨粉/抗菌肽支架的抗拉强度相比另外两种支架有一定的升高。压缩强度-应变曲线显示,4种支架都有良好的柔韧性,随着应力的增大,都产生了较大的形变。"
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