Hierarchical bioceramic scaffolds with 3D-plotted macropores and mussel-inspired surface nanolayers for stimulating osteogenesis
Xu, Mengchi1; Zhai, Dong1; Xia, Lunguo2; Li, Hong3; Chen, Shiyi3; Fang, Bing2; Chang, Jiang1; Wu, Chengtie1
刊名NANOSCALE
2016
卷号8期号:28页码:13790-13803
英文摘要

The hierarchical structure of biomaterials plays an important role in the process of tissue reconstruction and regeneration. 3D-plotted scaffolds have been widely used for bone tissue engineering due to their controlled macropore structure and mechanical properties. However, the lack of micro-or nano-structures on the strut surface of 3D-plotted scaffolds, especially for bioceramic scaffolds, limits their biological activity. Inspired by the adhesive versatility of mussels and the active ion-chelating capacity of polydopamine, we set out to prepare a hierarchical bioceramic scaffold with controlled macropores and mussel-inspired surface nanolayers by combining the 3D-plotting technique with the polydopamine/apatite hybrid strategy in order to synergistically accelerate the osteogenesis and angiogenesis. beta-Tricalcium phosphate (TCP) scaffolds were firstly 3D-plotted and then treated in dopamine-Tris/HCl and dopamine-SBF solutions to obtain TCP-DOPA-Tris and TCP-DOPA-SBF scaffolds, respectively. It was found that polydopamine/apatite hybrid nanolayers were formed on the surface of both TCP-DOPA-Tris and TCP-DOPA-SBF scaffolds and TCP-DOPA-SBF scaffolds induced apatite mineralization for the second time during the cell culture. As compared to TCP scaffolds, both TCP-DOPA-Tris and TCP-DOPA-SBF scaffolds significantly promoted the osteogenesis of bone marrow stromal cells (BMSCs) as well as the angiogenesis of human umbilical vein endothelial cells (HUVECs), and the TCP-DOPA-SBF group presented the highest in vitro osteogenic/angiogenic activity among the three groups. Furthermore, both TCP-DOPA-Tris and TCP-DOPA-SBF scaffolds significantly improved the formation of new bone in vivo as compared to TCP scaffolds without a nanostructured surface. Our results suggest that the utilization of a mussel-inspired Ca, P-chelated polydopamine nanolayer on 3D-plotted bioceramic scaffolds is a viable and effective strategy to construct a hierarchical structure for synergistically accelerating osteogenesis.

WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]BIOACTIVE GLASS SCAFFOLDS ; PORE STRUCTURE ; APATITE LAYER ; TISSUE ; CELL ; NANOPARTICLES ; PROLIFERATION ; ADHESION ; GROWTH ; ANGIOGENESIS
收录类别SCI
语种英语
WOS记录号WOS:000380021100032
内容类型期刊论文
源URL[http://ir.sic.ac.cn/handle/331005/22927]  
专题上海硅酸盐研究所_生物材料与组织工程研究中心_期刊论文
作者单位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, Ctr Craniofacial Orthodont,Dept Oral & Craniomaxi, Shanghai 200011, Peoples R China
3.Huashan Hosp, Dept Sports Med, 12 Wulumuqi Zhong Rd, Shanghai 200040, Peoples R China
推荐引用方式
GB/T 7714
Xu, Mengchi,Zhai, Dong,Xia, Lunguo,et al. Hierarchical bioceramic scaffolds with 3D-plotted macropores and mussel-inspired surface nanolayers for stimulating osteogenesis[J]. NANOSCALE,2016,8(28):13790-13803.
APA Xu, Mengchi.,Zhai, Dong.,Xia, Lunguo.,Li, Hong.,Chen, Shiyi.,...&Wu, Chengtie.(2016).Hierarchical bioceramic scaffolds with 3D-plotted macropores and mussel-inspired surface nanolayers for stimulating osteogenesis.NANOSCALE,8(28),13790-13803.
MLA Xu, Mengchi,et al."Hierarchical bioceramic scaffolds with 3D-plotted macropores and mussel-inspired surface nanolayers for stimulating osteogenesis".NANOSCALE 8.28(2016):13790-13803.
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