Combining sandblasting, alkaline etching, and collagen immobilization to promote cell growth on biomedical titanium implants

Chia Fei Liu, Kai Chun Chang, Ying Sui Sun, Diem Thuy Nguyen, Her Hsiung Huang

研究成果: 雜誌貢獻文章同行評審

摘要

Our objective in this study was to promote the growth of bone cells on biomedical titanium (Ti) implant surfaces via surface modification involving sandblasting, alkaline etching, and type I collagen immobilization using the natural cross-linker genipin. The resulting surface was characterized in terms topography, roughness, wettability, and functional groups, respectively using field emission scanning electron microscopy, 3D profilometry, and attenuated total reflection-Fourier transform infrared spectroscopy. We then evaluated the adhesion, proliferation, initial differentiation, and mineralization of human bone marrow mesenchymal stem cells (hMSCs). Results show that sandblasting treatment greatly enhanced surface roughness to promote cell adhesion and proliferation and that the immobilization of type I collagen using genipin enhanced initial cell differentiation as well as mineralization in the extracellular matrix of hMSCs. Interestingly, the nano/submicro-scale pore network and/or hydrophilic features on sandblasted rough Ti surfaces were insufficient to promote cell growth. However, the combination of all proposed surface treatments produced ideal surface characteristics suited to Ti implant applications.
原文英語
文章編號2550
期刊Polymers
13
發行號15
DOIs
出版狀態已發佈 - 八月 2021

ASJC Scopus subject areas

  • 化學 (全部)
  • 聚合物和塑料

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