Cited by 41Bone Tissue Engineering Materials3D Printing in Biomedical ResearchTissue Engineering and Regenerative Medicine

Hierarchical bioceramic scaffolds with 3D-plotted macropores and mussel-inspired surface nanolayers for stimulating osteogenesis

Xu, Mengchi, Zhai, Dong, Xia, Lunguo, Li, Hong, Chen, Shiyi, Fang, Bing, Chang, Jiang, Wu, Chengtie·2016·Nanoscale

Abstract

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. β-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.

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Crossref · 10.1039/c6nr01952h

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Research works printed but not linked: 4

  1. Rokn, 2012, J. Dent., 9, 35
  2. Tan, 2015, J. Inorg. Mater., 30, 1076
  3. Wu, 2007, J. Mater. Sci.: Mater. Med., 18, 857
  4. Oskarsson, 1981, Ann. Clin. Lab. Sci., 11, 165

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Authors
Xu, M., Zhai, D., Xia, L., Li, H., Chen, S., Fang, B., Chang, J., & Wu, C.
Affiliations
  • Chinese Academy of Sciences (CN)
  • Shanghai Jiao Tong University (CN)
  • Huashan Hospital (CN)
Corresponding author
Wu, Chengtie
Venue
Nanoscale
Published
2016
Volume
8
Issue
28
Pages
13790-13803
ISSN
  • 2040-3364 (ISSN-L)
  • 2040-3372
OpenAlex
W2423147219
Cited by
41
References
51
Citations by year
2025: 1 · 2024: 3 · 2023: 4 · 2022: 4 · 2021: 4 · 2020: 6 · 2019: 8 · 2018: 7 · 2017: 2 · 2016: 2
FWCI
2.89
Type
journal article
Language
en
Open access
closed
Locations
  • Nanoscale (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
  • Physical Sciences › Engineering › Biomedical Engineering › 3D Printing in Biomedical Research
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
Keywords
bioceramic scaffolds, 3D-printed scaffolds, beta-tricalcium phosphate, polydopamine, mussel-inspired surface modification, bone formation, angiogenesis, bone tissue engineering, macropore structure, mesenchymal stem cells, human umbilical vein endothelial cells, apatite mineralization, hierarchical surface structures
MeSH terms
Animals, Biocompatible Materials, Humans, Osteogenesis, Stromal Cells, Tissue Engineering, Nanostructures, Bivalvia, Tissue Scaffolds, Human Umbilical Vein Endothelial Cells

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