最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級(jí)檢索
磷酸三鈣涂層鎂合金材料的體內(nèi)降解及組織相容性研究
DOI:
作者:
作者單位:

作者簡(jiǎn)介:

通訊作者:

中圖分類(lèi)號(hào):

基金項(xiàng)目:

國(guó)家自然科學(xué)基金(30872724，81071460)


In Vivo Degradation and Biocompatibility of Magnesium Alloy Coated with Tricalcium Phosphate
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪(fǎng)問(wèn)統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評(píng)論
    摘要:

    探討新型醫(yī)用金屬材料磷酸三鈣(β-TCP)涂層鎂合金的體內(nèi)降解特性和生物活性，制備β-TCP涂層鎂合金（β-TCP-Mg-Al-Zn）并植入大鼠股骨骨髓腔，掃描電鏡觀察體內(nèi)植入材料的表面微觀結(jié)構(gòu)及材料表面能譜，分析材料表面鈣（Ca）和磷（P）元素的變化規(guī)律。結(jié)果表明，材料體內(nèi)植入1~4 w時(shí)，(β-TCP)- Mg-Al-Zn材料表面有大量的粘附蛋白物質(zhì)；材料體內(nèi)植入8 w時(shí)，(β-TCP)- Mg-Al-Zn材料表面Ca和P元素含量明顯高于Mg-Al-Zn材料(P＜0.05)；體內(nèi)植入12 w時(shí)，Mg-Al-Zn材料降解約33 %，而(β-TCP)-Mg-Al-Zn材料降解率為17 %。β-TCP涂層可有效地延緩Mg-Al-Zn鎂合金的體內(nèi)降解，并使Mg-Al-Zn材料表面具有良好的生物活性

    Abstract:

    The superficial degradation in vivo and biocompatibility of magnesium alloy (Mg-Al-Zn) coated with tricalcium phosphate (β-TCP) have been evaluated. (β-TCP)-Mg-Al-Zn implants were made and implanted into the femur of rats. The surface microstructure observation of implants and the EDS analysis were carried out. The changes of Ca and P on the surface of the implants were analyzed. Results show that many attachment proteins appear in the surface of (β-TCP)-Mg-Al-Zn after 4 weeks implantation. In the 8th week, the content of Ca and P in the surface of (β-TCP)-Mg-Al-Zn are higher than that in naked Mg-Al-Zn (P＜0.05). In the 12th week, about 33 % of naked Mg-Al-Zn alloy is degraded, while 17 % of (β-TCP)-Mg-Al-Zn is degraded. β-TCP coating can decay the superficial degradation and improve the biocompatibility of Mg-Al-Zn matrix in vivo.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

趙 杰,郭 磊,付玉平,趙延剛,譚麗麗,楊 柯.磷酸三鈣涂層鎂合金材料的體內(nèi)降解及組織相容性研究[J].稀有金屬材料與工程,2013,42(5):1013~1016.[Zhao Jie, Guo Lei, Fu Yuping, Zhao Yan’gang, Tan Lili, Yang Ke. In Vivo Degradation and Biocompatibility of Magnesium Alloy Coated with Tricalcium Phosphate[J]. Rare Metal Materials and Engineering,2013,42(5):1013~1016.]
DOI：[doi]

復(fù)制
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2012-05-16
  • 最后修改日期:
  • 錄用日期:
  • 在線(xiàn)發(fā)布日期:
  • 出版日期: