中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (12): 1846-1851.doi: 10.3969/j.issn.2095-4344.2015.12.009

• 纳米生物材料 nanobiomaterials • 上一篇    下一篇

生物医用纳米(Y0.95Eu0.05)2O3的体外细胞相容性

帅孟奇,朱文鲁,王友法   

  1. 武汉理工大学材料复合新技术国家重点实验室,湖北省武汉市  430070
  • 修回日期:2015-02-03 出版日期:2015-03-19 发布日期:2015-03-19
  • 通讯作者: 王友法,教授,武汉理工大学材料复合新技术国家重点实验室,湖北省武汉市 430070
  • 作者简介:帅孟奇,女,1990年生,湖北省仙桃市人,汉族,武汉理工大学材料科学与工程学院在读硕士,主要从事生物医用材料研究。
  • 基金资助:

    国家自然科学基金资助项目(51172172)

In vitro cytocompatibility of biomedical (Y0.95Eu0.05)2O3 nanomaterials

Shuai Meng-qi, Zhu Wen-lu, Wang You-fa   

  1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei Province, China
  • Revised:2015-02-03 Online:2015-03-19 Published:2015-03-19
  • Contact: Wang You-fa, Professor, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei Province, China
  • About author:Shuai Meng-qi, Studying for master’s degree, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 51172172

摘要:

背景:与有机荧光染料和荧光蛋白相比,稀土纳米材料具有更高的灵敏性和更好的光学稳定性,并且具有更低的细胞毒性。

目的:探讨(Y0.95Eu0.05)2O3稀土纳米材料的体外细胞相容性,以及氨基化修饰对材料细胞相容性的影响。
方法:采用溶胶-凝胶法合成(Y0.95Eu0.05)2O3稀土纳米材料,并进行氨基化修饰。将10,25,50,100,200 mg/L的氨基化与非氨基化(Y0.95Eu0.05)2O3稀土纳米材料悬液分别与SD大鼠血管平滑肌细胞共培养3 d,CCK-8法检测细胞增殖;将100 mg/L的氨基化与非氨基化(Y0.95Eu0.05)2O3稀土纳米材料悬液分别与L929细胞共培养48 h,荧光染色观察细胞凋亡。

结果与结论:随着材料悬液质量浓度的升高,血管平滑肌细胞存活率呈逐渐减少趋势;在材料质量浓度为10,25,50 mg/L时,氨基化组细胞存活率明显高于未氨基化组(P < 0.05);当材料质量浓度高达200 mg/L时,未氨基化组细胞存活率降到76%,氨基化组细胞存活率仍然在80%以上,两组比较差异有显著性意义(P < 0.05)。氨基化组L929细胞生长状况良好,凋亡细胞数量较少;未氨基化组生长较稀疏,细胞凋亡数量较多,显示出轻微的细胞毒性。表明氨基化修饰可以有效提高(Y0.95Eu0.05)2O3稀土纳米材料的细胞相容性。


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, 纳米材料, 生物相容性, 氨基化修饰, CCK-8, 细胞毒性, 荧光染色, 国家自然科学基金

Abstract:

BACKGROUND: Compared with organic fluorescent dyes and fluorescent proteins, rare earth nanomaterials have higher sensitivity, better optical stability, and lower cytotoxicity.

OBJECTIVE: To investigate the in vitro cytocompatibility of (Y0.95Eu0.05)2O3 rare earth nanomaterial and the effect of amine functionalization on the material cytocompatibility.
METHODS:(Y0.95Eu0.05)2O3 nanomaterials were synthesized using sol-gel method, and underwent amine functionalization. Amine-functionalized samples (10, 25, 50, 100, 200 mg/L) and non-amine-functionalized (Y0.95Eu0.05)2O3 rare earth nanomaterial suspensions were co-cultured with vascular smooth muscle cells of Sprague-Dawley rats for 3 days. Cell proliferation was detected using Cell Counting Kit-8 assay. 100 mg/L amine-functionalized samples and non-amine-functionalized (Y0.95Eu0.05)2O3 rare earth nanomaterial suspensions were co-cultured with L929 cells for 48 hours. Cell apoptosis was observed using fluorescence staining.

RESULTS AND CONCLUSION: With increased mass concentration of material suspension, survival rate of vascular smooth muscle cells was gradually reduced. At the mass concentration of 10, 25, 50 mg/L, cell survival rate was significantly higher in the amine-functionalized group than in the non-amine-functionalized group (P < 0.05). When the mass concentration of materials reached 200 mg/L, the cell survival rate decreased to 76% in the non-amine-functionalized group, but it was still above 80% in the amine-functionalized group, showing significant differences between the two groups (P < 0.05). The growth of L929 cells was good and the number of apoptotic cells was less in the amine-functionalized group. Cells were sparse and the number of cell apoptosis was more in the non-amine-functionalized group, showing slight cytotoxicity. These data verified that amine-functionalization can improve cytocompatibility of (Y0.95Eu0.05)2O3 rare earth nanomaterial.


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: Nanostructures, Materials Testing, Lanthanoid Series Elements

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