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Cell response and bioactivity of titania–zirconia–zirconium titanate nanotubes with different nanoscale topographies fabricated in a non-aqueous electrolyte

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Biomaterials Science Vol - 3 Issue - 3

Biomaterials Science Vol - 3 Issue - 2

Biomaterials Science Vol -2

Biomaterials Science Vol -1

Cell response and bioactivity of titania–zirconia–zirconium titanate nanotubes with different nanoscale topographies fabricated in a non-aqueous electrolyte

Content Provider	Royal Society of Chemistry (RSC)
Author	Berndt, Christopher C. Li, Yuncang Minagar, Sepideh Wen, Cuie
Copyright Year	2015
Abstract	The morphology and the physical and chemical characteristics of four groups of TiO2–ZrO2–ZrTiO4 nanotubes that were fabricated via anodization in a non-aqueous electrolyte were investigated in order to examine their influence on the bioactivity of, and cell adhesion on, Ti50Zr alloy. Scanning electron microscopy (SEM) and 3D profilometry were used for the characterization. The in vitro cell responses to nanotubular surfaces with different inner diameters (Di) between 25 and 49 nm were assessed using osteoblast cells (SaOS2). The results of the MTS assay indicated that the percentage of cell adhesion on the nanotubes was influenced by the nanoscale topographical parameters including the tube inner diameter (Di), the tube wall thickness (Wt), the amplitude roughness (Sa) and the spacing roughness (Sm) of the nanotubular surface. Cell adhesion was promoted to 84.9% on nanotubes with an inner diameter of 25 nm, or 80.3% on nanotubes with a large wall thickness of 34 nm due to the accelerated integrin clustering and focal contacts of formation. A nanotubular surface with a low spacing roughness of 33 nm3 nm−2 led to a cell adhesion of 61.0%. Similarly, a nanotubular surface with a high amplitude roughness of 1.03 μm revealed a cell adhesion of 61.5% in instances where the inner diameters (29 nm) and wall thicknesses (24 nm) were within the critical dimensional parameters for cells to survive and thrive.
Starting Page	636
Ending Page	644
Page Count	9
File Format	HTM / HTML PDF
ISSN	20474830
Volume Number	3
Issue Number	4
Journal	Biomaterials Science
DOI	10.1039/c5bm00007f
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Integrin Electrolyte Anodizing Cell adhesion Micrometre Osteoblast Zirconium dioxide MTS Scanning electron microscope MTT assay Lasiommata maera Three-dimensional space
Content Type	Text
Resource Type	Article
Subject	Materials Science Biomedical Engineering

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Cell response and bioactivity of titania–zirconia–zirconium titanate nanotubes with different nanoscale topographies fabricated in a non-aqueous electrolyte

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