Fabrication of nano-structured calcium silicate coatings with enhanced stability, bioactivity and osteogenic and angiogenic activity

被引：63
|
作者：
Wang, Xiuhui [1 ]
Zhou, Yuning [2 ]
Xia, Lunguo [2 ]
Zhao, Cancan [1 ]
Chen, Lei [1 ]
Yi, Deliang [1 ]
Chang, Jiang [1 ]
Huang, Liping [3 ]
Zheng, Xuebin [3 ]
Zhu, Huiying [1 ]
Xie, Youtao [3 ]
Xu, Yuanjin [2 ]
Lin, Kaili [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Med, Peoples Hosp 9, Dept Oral & Maxillofacial Surg,Coll Stomatol, Shanghai 200011, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Ceram, Lab Inorgan Coating Mat, Shanghai 200050, Peoples R China
来源：
COLLOIDS AND SURFACES B-BIOINTERFACES | 2015年 / 126卷
基金：
中国国家自然科学基金;
关键词：
Calcium silicate coating; Nano-structured surface; Stability; Osteogenic activity; Angiogenic activity; GENE-EXPRESSION; SURFACE MICROSTRUCTURE; COMPOSITE COATINGS; BONE REGENERATION; HUMAN OSTEOBLASTS; IONIC PRODUCTS; PART; TITANIUM; OSSEOINTEGRATION; HYDROXYAPATITE;
D O I：
10.1016/j.colsurfb.2014.11.044
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
The bioactivity and stability of coatings on alloy implants play critical roles in the fast osseointegration and maintenance of a long-term life span of the implants, respectively. Herein, nano-sheet surface on bioactive calcium silicate (CaSiO3, CS) coatings on metal substrates was fabricated by combining atmosphere plasma spraying (APS) and hydrothermal technology (HT). The glassy phase in CS coatings generated by APS was converted into crystalline sheet-like nano-structures after HT treatment. Compared with the original CS coating samples, HT treatment decreased the degradation rate of the CS coatings. Moreover, the fabricated nano-structured topography of CS coatings increased the apatite mineralization ability and significantly enhanced the cell attachment, proliferation, differentiation, alkaline phosphatase (ALP) activity and expression of osteogenic genes and angiogenic factors of rat bone marrow stromal cells (bMSCs). Our results suggest that the nano-structured CS coatings have immense potential in improving the clinical performance of medical implants. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：358 / 366
页数：9
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