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Surface morphology data of tantalum coatings obtained by electrospark alloying.

ABSTRACT: The article presents the data of scanning electron microscopy of the surface morphology of tantalum coatings produced by electrospark alloying. To perform the statistical analysis of open porosity and morphological parameters of the coatings, raw digital images of the structure were studied. In this case, "AGPM" software for the analysis of geometric parameters of microobjects was used. When processing digital images of the surface morphology, open porosity, total quantity, average size and dispersion of the structural elements (particles and pores) were determined, and typical distribution patterns of structural elements were obtained from linear dimensions.

SUBMITTER: Fomina M

PROVIDER: S-EPMC6148842 | biostudies-other | 2018 Oct

REPOSITORIES: biostudies-other

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Surface morphology data of tantalum coatings obtained by electrospark alloying.

Fomina Marina M Koshuro Vladimir V Papshev Vyacheslav V Rodionov Igor I Fomin Aleksandr A

Data in brief 20180914

The article presents the data of scanning electron microscopy of the surface morphology of tantalum coatings produced by electrospark alloying. To perform the statistical analysis of open porosity and morphological parameters of the coatings, raw digital images of the structure were studied. In this case, "AGPM" software for the analysis of geometric parameters of microobjects was used. When processing digital images of the surface morphology, open porosity, total quantity, average size and disp ...[more]

PMID: 30255119

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Project description:In recent years, pure iron (Fe) has attracted significant attention as a promising biodegradable orthopedic implant material due to its excellent mechanical and biological properties. However, in physiological conditions, Fe has an extremely slow degradation rate with localized and irregular degradation, which is problematic for practical applications. In this study, we developed a novel combination of a nanostructured surface topography and galvanic reaction to achieve uniform and accelerated degradation of an Fe implant. The target-ion induced plasma sputtering (TIPS) technique was applied on the Fe implant to introduce biologically compatible and electrochemically noble tantalum (Ta) onto its surface and develop surface nano-galvanic couples. Electrochemical tests revealed that the uniformly distributed nano-galvanic corrosion cells of the TIPS-treated sample (nano Ta–Fe) led to relatively uniform and accelerated surface degradation compared to that of bare Fe. Furthermore, the mechanical properties of nano Ta–Fe remained almost constant during a long-term in vitro immersion test (~40 weeks). Biocompatibility was also assessed on surfaces of bare Fe and nano Ta–Fe using in vitro osteoblast responses through direct and indirect contact assays and an in vivo rabbit femur medullary cavity implantation model. The results revealed that nano Ta–Fe not only enhanced cell adhesion and spreading on its surface, but also exhibited no signs of cellular or tissue toxicity. These results demonstrate the immense potential of Ta-implanted surface nanostructures as an effective solution for the practical application of Fe-based orthopedic implants, ensuring long-term biosafety and clinical efficacy. Graphical abstract Image 1 Highlights • The degradation rate of nanostructured Fe implants was accelerated by TIPS technique.• Ta ions were accelerated strongly toward the Fe surface by TIPS process.• Nano Ta–Fe showed long-term mechanical stability and accelerated degradation rate.• Nanostructured Ta–Fe surface showed enhanced in vitro and in vivo cellular responses.• Ta-implanted Fe is a promising material for biodegradable orthopedic implants.

Dataset Information

Surface morphology data of tantalum coatings obtained by electrospark alloying.

Publications

Surface morphology data of tantalum coatings obtained by electrospark alloying.

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