本文主要研究内容
作者（2019）在《Plasma spray of biofunctional(Mg, Sr)-substituted hydroxyapatite coatings for titanium alloy implants》一文中研究指出：Plasma-sprayed hydroxyapatite(HA) coatings have been widely utilized in load-bearing titanium alloy implants. In this study, Mg, Sr co-substituted HA((Mg, Sr)-HA) nano-scale powders have been synthesized, which are further used to prepare(Mg, Sr)-HA coatings on Ti-6 Al-4 V alloys in order to improve the biological functions. The average size of(Mg, Sr)-HA nano particles is ～75 nm. The average bonding strength for(Mg, Sr)-HA coating and samples after heat treatment at 500°C or 600°C for 3 h are26.17 ± 2.11 MPa, 36.07 ± 4.48 MPa and 37.07 ± 2.95 MPa, respectively. There is a significantly increase of bonding strength likely due to low residual stress after heated treatment. MC3 T3-E1 cells show a high proliferation rate when cultured with(Mg, Sr)-HA coating extract compared to the normal culture medium, which also exhibit large extension and deposition of extracellular matrices when adhered on the coating surfaces. Thus, these(Mg, Sr)-HA coatings show high bonding strength and improved biological functions, which offer promising future applications in the fields of orthopedics and dentistry.
Abstract
Plasma-sprayed hydroxyapatite(HA) coatings have been widely utilized in load-bearing titanium alloy implants. In this study, Mg, Sr co-substituted HA((Mg, Sr)-HA) nano-scale powders have been synthesized, which are further used to prepare(Mg, Sr)-HA coatings on Ti-6 Al-4 V alloys in order to improve the biological functions. The average size of(Mg, Sr)-HA nano particles is ～75 nm. The average bonding strength for(Mg, Sr)-HA coating and samples after heat treatment at 500°C or 600°C for 3 h are26.17 ± 2.11 MPa, 36.07 ± 4.48 MPa and 37.07 ± 2.95 MPa, respectively. There is a significantly increase of bonding strength likely due to low residual stress after heated treatment. MC3 T3-E1 cells show a high proliferation rate when cultured with(Mg, Sr)-HA coating extract compared to the normal culture medium, which also exhibit large extension and deposition of extracellular matrices when adhered on the coating surfaces. Thus, these(Mg, Sr)-HA coatings show high bonding strength and improved biological functions, which offer promising future applications in the fields of orthopedics and dentistry.
论文参考文献
[1].Preparation and properties of a cerium-containing hydroxyapatite coating on commercially pure titanium by micro-arc oxidation[J]. HUANG Yong~(a,b) WANG Yingjun~(a,b) NING Chengyun~(a,b) NAN Kaihui~(a,b) HAN Yong~c ~a College of Materials Science and Engineering,South China University of Technology,Guangzhou 510641,China ~b Key Laboratory of SpeciaUy Functional Materials,Ministry of Education of China,Guangzhou 510640,China ~c State Key Laboratory for Mechanical Behavior of Materials,Xi’an Jiaotong University,Xi’an 710049,China. Rare Metals.2008(03)[2].Electrophoretic Deposition of Hydroxyapatite Coating[J]. Zude FENG and Qishen SUDepartment of Materials Science and Engineering, State Key Laboratory for Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, ChinaZuochen LINorthwest Institute for Nonferrous Metal Research, Xi’an 710016, China. Journal of Materials Science & Technology.2003(01)[3].Mechanical properties of TiO2-hydroxyapatite nanostructured coatings on Ti-6Al-4V substrates by APS method[J]. Mohammad Zakeri,Elmira Hasani,Morteza Tamizifar. International Journal of Minerals Metallurgy and Materials.2013(04)[4].Production of "Tricalcium Phosphate/Titanium Dioxide" Coating Surface on Titanium Substrates[J]. Onder Albayrak,Sabri Altintas. Journal of Materials Science & Technology.2010(11)[5].Mechanical Behaviour of Composite Bioactive Bone Cements Consisting of Two Different Types of Surface Treated Hydroxyapatite as Filler[J]. S Deb,JA Roether. Journal of Wuhan University of Technology-Materials Science.2005(S1)[6].Influence of Zirconia on Hydroxyapatite Coating on Ti-Alloy by Laser Cladding[J]. 杜海燕,霍伟荣,高海,王丽娟,邱世鹏,刘家臣. Transactions of Tianjin University.2003(04)[7].Preparation of Hydroxyapatite-titanium Dioxide Coating on Ti6Al4V Substrates using Hydrothermal-electrochemical Method[J]. 何代华,WANG Pu,LIU Ping,LIU Xinkuan,MA Fengcang,LI Wei,CHEN Xiaohong,ZHAO Jun,YE Hong. Journal of Wuhan University of Technology(Materials Science).2016(02)[8].Preparation of hydroxyapatite layer on Ti-based bulk metallic glasses by acid and alkali pre-treatment[J]. Hao Hu,Zhen-Duo Cui,Sheng-Li Zhu,Zhao-Yang Li,Yan-Qin Liang,Xian-Jin Yang. Rare Metals.2015(01)[9].Electrochemical deposition of hydroxyapatite coatings on titanium[J]. 章媛媛,陶杰,庞迎春,王炜,汪涛. Transactions of Nonferrous Metals Society of China.2006(03)[10].Fabrication and characterization of hydroxyapatite/Al2O3 biocomposite coating on titanium[J]. 吴振军,何莉萍,陈宗璋. Transactions of Nonferrous Metals Society of China.2006(02)
论文详细介绍
论文作者分别是来自Journal of Materials Science & Technology的，发表于刊物Journal of Materials Science & Technology2019年05期论文，是一篇关于,Journal of Materials Science & Technology2019年05期论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自Journal of Materials Science & Technology2019年05期论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：Journal of Materials Science & Technology2019年05期论文;
：Plasma spray of biofunctional(Mg, Sr)-substituted hydroxyapatite coatings for titanium alloy implants论文
下载Doc文档