RRC ID 18188
Author Kataoka Y, Tamaki Y, Miyazaki T.
Title Synergistic responses of superficial chemistry and micro topography of titanium created by wire-type electric discharge machining.
Journal Biomed Mater Eng
Abstract Wire-type electric discharge machining has been applied to the manufacture of endosseous titanium implants as this computer associated technique allows extremely accurate complex sample shaping with an optimal micro textured surface during the processing. Since the titanium oxide layer is sensitively altered by each processing, the authors hypothesized that this technique also up-regulates biological responses through the synergistic effects of the superficial chemistry and micro topography. To evaluate the respective in vitro cellular responses on the superficial chemistry and micro topography of titanium surface processed by wire-type electric discharge, we used titanium-coated epoxy resin replica of the surface. An oxide layer on the titanium surface processed by wire-type electric discharge activated the initial responses of osteoblastic cells through an integrin-mediated mechanism. Since the mRNA expression of ALP on those replicas was up-regulated compared to smooth titanium samples, the micro topography of a titanium surface processed by wire-type electric discharge promotes the osteogenic potential of cells. The synergistic response of the superficial chemistry and micro topography of titanium processed by wire-type electric discharge was demonstrated in this study.
Volume 21(2)
Pages 113-21
Published 2011-1-1
DOI 10.3233/BME-2011-0661
PII B66NW21074MV3552
PMID 21654067
MeSH Alkaline Phosphatase / metabolism* Animals Biocompatible Materials / chemistry* Cell Adhesion Cell Line Drug Synergism Epoxy Resins / chemistry Materials Testing Mice Microscopy, Electron, Scanning / methods Nanostructures / chemistry* Nanostructures / ultrastructure* Osteoblasts / enzymology* Osteoblasts / ultrastructure Surface Properties Titanium / chemistry* Up-Regulation
IF 1.243
Times Cited 5
WOS Category ENGINEERING, BIOMEDICAL MATERIALS SCIENCE, BIOMATERIALS
Resource
Human and Animal Cells MC3T3-E1(RCB1126)