MODULATION OF THE MICRO/NANOTOPOGRAPHY OF PLASMA-SPRAYED BIOMEDICAL COATINGS FOR ENHANCED OSTEOGENIC ACTIVITY

Chen Lyu, Zhengjiang Xu, Huaifeng Lu, Wei Tang, Jian Lu, Dandan Ye, Xiaobing Zhao and Guocheng Wang
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Chen Lyu: School of Materials Science and Engineering, Changzhou University, Changzhou 213164, P. R. China
Zhengjiang Xu: #x2020;Research Center for Human Tissues & Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, Guangdong 518055, P. R. China
Huaifeng Lu: School of Materials Science and Engineering, Changzhou University, Changzhou 213164, P. R. China†Research Center for Human Tissues & Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, Guangdong 518055, P. R. China
Wei Tang: #x2020;Research Center for Human Tissues & Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, Guangdong 518055, P. R. China
Jian Lu: #x2020;Research Center for Human Tissues & Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, Guangdong 518055, P. R. China
Dandan Ye: School of Materials Science and Engineering, Changzhou University, Changzhou 213164, P. R. China†Research Center for Human Tissues & Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen, Guangdong 518055, P. R. China
Xiaobing Zhao: School of Materials Science and Engineering, Changzhou University, Changzhou 213164, P. R. China
Guocheng Wang: School of Materials Science and Engineering, Changzhou University, Changzhou 213164, P. R. China

Surface Review and Letters (SRL), 2019, vol. 26, issue 09, 1-5

Abstract: Surface micro/nanotopography of orthopedic implants plays a significant role in determining their biological performance. In this study, plasma jet was for the first time utilized to modulate the micro/nanostructure of the plasma-sprayed 50% Nb2O5-TiO2 coating on the biomedical Ti alloy based on its high temperature and super-high cooling rate characteristics. Results show that the plasma jet can modulate the shape, dimension and distribution of the surface grains in a process-parameter-dependent manner, thus being able to tailor the micro/nanotopography of the surface coating. In vitro cell culture experiments proved that the plasma jet-induced topographical changes have great effects on the osteogenic activity of the MC3T3-E1 cells cultured on the coating surface.

Keywords: Surface topography; biomaterials; plasma spray; jet treatment; osteogenic (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1142/S0218625X19500616

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