21 Citations (Scopus)

Abstract

Background: The surface properties of Ti-6Al-4V (Ti64) alloys extensively affect the biological responses in a physical environment. To enhance the surface biocompatibility of Ti64 specimens, in the present study, electrical discharge machining (EDM) was performed to produce the modified layer on the surface of the Ti64 specimen. Methods: The EDM-functionalized surfaces were obtained at three different pulse durations, which varied from 10μs to 60μs. The surface properties of the EDM-functionalized specimen were characterized with scanning electron microscopy and X-ray photoelectron spectroscopy. The properties of adhesion and proliferation of MG-63 cells were evaluated for the interactions between the EDM-functionalized layer and cells. Results: The incorporation of oxygen roughened the EDM-functionalized surface on a microscale, where the nanoscale pores were superimposed. The EDM-functionalized layer, which can generate the thick anatase TiO2 on the Ti64 surface, afforded a cytocompatible environment. In cell culture, alkaline phosphatase activity could be enhanced on the EDM-functionalized surfaces as compared to the untreated surface. In addition, the increase in pulse durations to the EDM functionalization led to the enhancement of multiple osteoblast functions. Conclusion: The present study revealed that the chemistry and crystallinity of the EDM-functionalized layer played important roles in affecting osteoblastic responses to the specimens, thereby providing insight into the development of new biomedical implant surfaces.

Original languageEnglish
Pages (from-to)92-96
Number of pages5
JournalJournal of Experimental and Clinical Medicine(Taiwan)
Volume5
Issue number3
DOIs
Publication statusPublished - 2013

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Surface Properties
Osteoblasts
Photoelectron Spectroscopy
Electron Scanning Microscopy
Alkaline Phosphatase
Cell Culture Techniques
Oxygen
titanium alloy (TiAl6V4)
titanium dioxide

Keywords

  • MG-63 cells
  • Osteoblast
  • Titanium alloys
  • X-ray photoelectron spectroscopy

ASJC Scopus subject areas

  • Medicine(all)

Cite this

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title = "Nanoporous biocompatible layer on Ti-6Al-4V alloys enhanced osteoblast-like cell response",
abstract = "Background: The surface properties of Ti-6Al-4V (Ti64) alloys extensively affect the biological responses in a physical environment. To enhance the surface biocompatibility of Ti64 specimens, in the present study, electrical discharge machining (EDM) was performed to produce the modified layer on the surface of the Ti64 specimen. Methods: The EDM-functionalized surfaces were obtained at three different pulse durations, which varied from 10μs to 60μs. The surface properties of the EDM-functionalized specimen were characterized with scanning electron microscopy and X-ray photoelectron spectroscopy. The properties of adhesion and proliferation of MG-63 cells were evaluated for the interactions between the EDM-functionalized layer and cells. Results: The incorporation of oxygen roughened the EDM-functionalized surface on a microscale, where the nanoscale pores were superimposed. The EDM-functionalized layer, which can generate the thick anatase TiO2 on the Ti64 surface, afforded a cytocompatible environment. In cell culture, alkaline phosphatase activity could be enhanced on the EDM-functionalized surfaces as compared to the untreated surface. In addition, the increase in pulse durations to the EDM functionalization led to the enhancement of multiple osteoblast functions. Conclusion: The present study revealed that the chemistry and crystallinity of the EDM-functionalized layer played important roles in affecting osteoblastic responses to the specimens, thereby providing insight into the development of new biomedical implant surfaces.",
keywords = "MG-63 cells, Osteoblast, Titanium alloys, X-ray photoelectron spectroscopy",
author = "Lee, {Wei Fang} and Yang, {Tzu Sen} and Wu, {Yi Chieh} and Peng, {Pei Wen}",
year = "2013",
doi = "10.1016/j.jecm.2013.04.002",
language = "English",
volume = "5",
pages = "92--96",
journal = "Journal of Experimental and Clinical Medicine",
issn = "1878-3317",
publisher = "Elsevier Taiwan LLC",
number = "3",

}

TY - JOUR

T1 - Nanoporous biocompatible layer on Ti-6Al-4V alloys enhanced osteoblast-like cell response

AU - Lee, Wei Fang

AU - Yang, Tzu Sen

AU - Wu, Yi Chieh

AU - Peng, Pei Wen

PY - 2013

Y1 - 2013

N2 - Background: The surface properties of Ti-6Al-4V (Ti64) alloys extensively affect the biological responses in a physical environment. To enhance the surface biocompatibility of Ti64 specimens, in the present study, electrical discharge machining (EDM) was performed to produce the modified layer on the surface of the Ti64 specimen. Methods: The EDM-functionalized surfaces were obtained at three different pulse durations, which varied from 10μs to 60μs. The surface properties of the EDM-functionalized specimen were characterized with scanning electron microscopy and X-ray photoelectron spectroscopy. The properties of adhesion and proliferation of MG-63 cells were evaluated for the interactions between the EDM-functionalized layer and cells. Results: The incorporation of oxygen roughened the EDM-functionalized surface on a microscale, where the nanoscale pores were superimposed. The EDM-functionalized layer, which can generate the thick anatase TiO2 on the Ti64 surface, afforded a cytocompatible environment. In cell culture, alkaline phosphatase activity could be enhanced on the EDM-functionalized surfaces as compared to the untreated surface. In addition, the increase in pulse durations to the EDM functionalization led to the enhancement of multiple osteoblast functions. Conclusion: The present study revealed that the chemistry and crystallinity of the EDM-functionalized layer played important roles in affecting osteoblastic responses to the specimens, thereby providing insight into the development of new biomedical implant surfaces.

AB - Background: The surface properties of Ti-6Al-4V (Ti64) alloys extensively affect the biological responses in a physical environment. To enhance the surface biocompatibility of Ti64 specimens, in the present study, electrical discharge machining (EDM) was performed to produce the modified layer on the surface of the Ti64 specimen. Methods: The EDM-functionalized surfaces were obtained at three different pulse durations, which varied from 10μs to 60μs. The surface properties of the EDM-functionalized specimen were characterized with scanning electron microscopy and X-ray photoelectron spectroscopy. The properties of adhesion and proliferation of MG-63 cells were evaluated for the interactions between the EDM-functionalized layer and cells. Results: The incorporation of oxygen roughened the EDM-functionalized surface on a microscale, where the nanoscale pores were superimposed. The EDM-functionalized layer, which can generate the thick anatase TiO2 on the Ti64 surface, afforded a cytocompatible environment. In cell culture, alkaline phosphatase activity could be enhanced on the EDM-functionalized surfaces as compared to the untreated surface. In addition, the increase in pulse durations to the EDM functionalization led to the enhancement of multiple osteoblast functions. Conclusion: The present study revealed that the chemistry and crystallinity of the EDM-functionalized layer played important roles in affecting osteoblastic responses to the specimens, thereby providing insight into the development of new biomedical implant surfaces.

KW - MG-63 cells

KW - Osteoblast

KW - Titanium alloys

KW - X-ray photoelectron spectroscopy

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