中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (8): 1149-1154.doi: 10.3969/j.issn.2095-4344.2015.08.001

• 纳米生物材料 nanobiomaterials •    下一篇

纳米羟基磷灰石/胶原蛋白/丝素蛋白复合骨组织工程支架材料的生物相容性

年争好1,2,3,李 晖1,李瑞欣2,孙 凯1,2,3,李 东1,2,3,徐 成2,张西正2   

  1. 1天津医科大学总医院,天津市 300052;2解放军军事医学科学院卫生装备研究所,天津市 300161;3天津医科大学,天津市 300070
  • 修回日期:2015-01-08 出版日期:2015-02-19 发布日期:2015-02-19
  • 通讯作者: 李晖,主任医师,硕士生导师,天津医科大学总医院骨科,天津市 300052 李瑞欣,副研究员,解放军军事医学科学院卫生装备研究所, 天津市 300161
  • 作者简介:年争好,男,1988年生,安徽省宿州市人,汉族,天津医科大学在读硕士,医师,主要从事骨与关节修复研究。
  • 基金资助:

    国家自然科学基金资助项目(11432016,31370942,11072266)

Biocompatibility of nano-hydroxyapatite/collagen/silk fibroin composite scaffolds for bone tissue engineering

Nian Zheng-hao1, 2, 3, Li Hui1, Li Rui-xin2, Sun Kai1, 2, 3, Li Dong1, 2, 3, Xu Cheng2, Zhang Xi-zheng2   

  1. 1General Hospital of Tianjin Medical University, Tianjin 300052, China; 2Institute of Medical Equipment, Academy of Military Medical Science, Tianjin 300161, China; 3Tianjin Medical University, Tianjin 300070, China
  • Revised:2015-01-08 Online:2015-02-19 Published:2015-02-19
  • Contact: Li Hui, Chief physician, Master’s supervisor, General Hospital of Tianjin Medical University, Tianjin 300052, China Li Rui-xin, Associate researcher, Institute of Medical Equipment, Academy of Military Medical Science, Tianjin 300161, China
  • About author:Nian Zheng-hao, Studying for master’s degree, Physician, General Hospital of Tianjin Medical University, Tianjin 300052, China; Institute of Medical Equipment, Academy of Military Medical Science, Tianjin 300161, China; Tianjin Medical University, Tianjin 300070, China
  • Supported by:

    the National Natural Science Foundation of China, No. 11432016, 31370942, 11072266

摘要:

背景:通过将两种及两种以上材料共混制备复合支架材料可以弥补各自的不足,利用各种材料的互补特性来满足组织工程对支架的要求。

目的:制备纳米羟基磷灰石/胶原蛋白/丝素蛋白复合三维支架材料,并研究其细胞相容性。
方法:将纳米羟基磷灰石、胶原蛋白与丝素蛋白分别按质量比为1∶1∶5、1∶2∶5、1∶3∶5的比例混合,制备纳米羟基磷灰石/胶原蛋白/丝素蛋白复合材料,测试其孔隙率、孔径大小、吸水膨胀率及压缩力学性能。将表征结果良好的质量比为1∶2∶5的纳米羟基磷灰石/胶原蛋白/丝素蛋白复合材料与MC3T3-E1细胞体外复合培养,MTT法检测复合培养2,4,6,8,12 d后的细胞活性。

结果与结论:羟基磷灰石/胶原蛋白/丝素蛋白按质量1∶2∶5的比例混合更符合要求:孔径98-260 μm,孔隙率为(96.72±2.78)%,吸水膨胀率为(549.37±35.29)%,生物力学试验机测定其力学性能稳定、压缩应变及弹性模量等指标适宜骨组织工程研究应用。MC3T3-E1细胞在纳米羟基磷灰石/胶原蛋白/丝素蛋白复合三维支架上生长增殖良好,表明纳米羟基磷灰石/胶原/丝素复合三维支架具有良好的细胞相容性。


中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

关键词: 生物材料, 骨生物材料, 丝素蛋白, 胶原蛋白, 纳米羟基磷灰石, 骨组织工程, 支架材料, 细胞相容性, 国家自然科学基金

Abstract:

BACKGROUND: Composite scaffolds made of two or more materials can meet the requirements of tissue engineering scaffolds based on the complementary properties of various materials.

OBJECTIVE: To prepare three-dimensional nano-hydroxyapatite (nHA)/collagen (COL)/silk fibroin (SF) scaffolds and to study their biocompatibility.
METHODS: Composite scaffolds were prepared by mixing nHA, COL and SF at different ratios of 1:1:5, 1:2:5, 1:3:5. In order to find out the best mixing ratio of SF, COL and nHA, the porosity, pore size, water absorption and mechanical properties were determined. MC3T3-E1 cells were cultured in the nHA/COL/SF scaffolds composite scaffold (1:2:5) in vitro to observe the biocompatibility. Cell viability was detected after co-culture for 2, 4, 6, 8, 12 days using MTT.
RESULTS AND CONCLUSION: It was more suitable for bone scaffolds when the mixed ratio of nHA, COL and SF was 1:2:5. The pore size was 98-260 μm, the porosity was (96.72±2.78)%, and the water absorption was (549.37±35.29)%. The stability of its mechanical properties, compressive strain and elastic modulus and other indicators were measured by biomechanical testing machine, which are suitable for bone tissue engineering applications. MC3T3-E1 cells grew well in the nHA/COL/SF composite scaffold, indicating the composite scaffold has good cytocompatibility.

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程


全文链接:

Key words: Collagen, Silk, Hydroxyapatites, Tissue Engineering

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