中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (47): 7660-7664.doi: 10.3969/j.issn.2095-4344.2015.47.021

• 材料生物相容性 material biocompatibility • 上一篇    下一篇

铁铬钼软磁合金表面镀铬后的生物相容性

夏银花1,2,聂二民2,姜 瑞2,张春元2,曾尽娣2,谈济洲2   

  1. 1江西省人民医院口腔科,江西省南昌市  330006;2中山大学附属第一医院口腔科,广东省广州市  510080
  • 收稿日期:2015-08-28 出版日期:2015-11-19 发布日期:2015-11-19
  • 通讯作者: 张春元,硕士,教授,中山大学附属第一医院口腔科,广东省广州市 510080
  • 作者简介:夏银花,女,1987年生,江西省九江市人,汉族,2014年中山大学毕业,硕士,医师,主要从事口腔临床医学方面研究。
  • 基金资助:

    广东省科技厅社会发展项目(2011B080701010、2012B061700066)

Biocompatibility of Fe-Cr-Mo soft magnetic alloy with chromium plating

Xia Yin-hua1,2, Nie Er-min2, Jiang Rui2, Zhang Chun-yuan2, Zeng Jin-di2, Tan Ji-zhou2   

  1. 1Department of Stomatology, Jiangxi Provincial People’s Hospital, Nanchang 330006, Jiangxi Province, China; 2Department of Stomatology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
  • Received:2015-08-28 Online:2015-11-19 Published:2015-11-19
  • Contact: Zhang Chun-yuan, Master, Professor, Department of Stomatology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
  • About author:Xia Yin-hua, Master, Physician, Department of Stomatology, Jiangxi Provincial People’s Hospital, Nanchang 330006, Jiangxi Province, China
  • Supported by:

     the Social Development Project of Guangdong Provincial Science and Technology Department, No. 2011B080701010, 2012B061700066

摘要:

背景:研究表明,铁铬钼系列软磁合金具有理想的磁性能和机械加工性能,表面镀Cr6+处理可明显增强其在口腔环境中的耐腐蚀性,但其表面镀铬后的生物安全性仍需进一步检验。

目的:评价铁铬钼软磁合金表面镀铬后的生物相容性。
方法:取对数生长期L-929细胞悬液,以6×107 L-1的细胞浓度接种于96孔板中,分别加入纯钛浸提液、铁铬钼软磁合金原样浸提液、铁铬钼电镀Cr6+软磁合金浸提液与聚氯乙烯浸提液培养。培养5 d后,观察细胞形态和贴壁情况,采用CCK-8法检测细胞A值,并计算各组细胞相对增殖率,评价材料细胞毒性分级。

结果与结论:纯钛浸提液组细胞形态正常,贴壁生长良好,表现为无细胞毒性;铁铬钼软磁合金原样浸提液组细胞形态和生长状态均良好,偶见个别细胞溶解,培养液内出现散在红褐色颗粒,表现为无或极轻微的细胞毒性;铁铬钼镀Cr6+软磁合金浸提液组细胞生长状态良好,表现为无或极轻微的细胞毒性;聚氯乙烯浸提液组超过70%细胞固缩或溶解呈空泡状,大量细胞碎片,超过50%细胞生长抑制,表现中度以上的细胞毒性。铁铬钼电镀Cr6+软磁合金浸提液的细胞毒性为0至1级。表明镀铬的铁铬钼软磁合金具有良好的生物相容性。
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

关键词: 生物材料, 材料相容性, 铁铬钼软磁合金, 镀铬, 细胞毒性, 生物安全性

Abstract:

BACKGROUND: Studies have demonstrated that Fe-Cr-Mo soft magnetic alloy has desired magnetic properties and machining properties. Surface Cr6+ plating treatment can significantly enhance the corrosion resistance in oral environment, but its biosecurity needs further testing.

OBJECTIVE: To evaluate the biocompatibility of Fe-Cr-Mo soft magnetic alloy with chromium plating.
METHODS: Logarithmic growth phase L929 cell suspension was obtained and seeded in 96-well plates at a cell concentration of 6×107/L. Pure titanium extract, Fe-Cr-Mo soft magnetic alloy original extract, Cr6+-plated Fe-Cr-Mo soft magnetic alloy and PVC extract were added respectively. After 5 days of culture, cell morphology and adherent circumstances were observed. The absorbance value was detected using cell counting kit-8 assay. The relative growth rate of cells in each group was calculated. The cytotoxicity grades of materials were evaluated.
RESULTS AND CONCLUSION: In the pure titanium extracts group, the cells with normal morphology showed good adherent growth and no cytotoxicity. In the Fe-Cr-Mo soft magnetic alloy original extract group, the cell morphology and growth status were both good, with occasionally individual cell lysis. Scattered reddish brown particles were visible in the culture solution, showing no or very mild cytotoxicity. In Cr6+-plated Fe-Cr-Mo soft magnetic alloy extract group, the cells grew well and showed no or very mild cytotoxicity. In PVC extract group, more than 70% of cells were vacuole-shaped and presented with pyknosis or dissolution, there was a large number of cell debris, and cell growth was inhibited in over 50% cells, showing moderate cytotoxicity or above. The cytotoxicity of Cr6+-plated Fe-Cr-Mo soft magnetic alloy extract was grade 0-1. These results demonstrate that Fe-Cr-Mo soft magnetic alloy with chromium plating has good biocompatibility.
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

Key words: Vitallium, Biocompatible Materials, Chromium, Tissue Engineering