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Sub-micrometer scale surface roughness of titanium reduces fibroblasts function

Abstract

Titanium and its alloys are conventionally used to produce medical devices, but their biocompatibility has not yet been optimized. Surface modification, especially control of the surface roughness of titanium, is one strategy for improving biocompatibility and providing effective binding to hard tissue. However, the soft tissue compatibility of metallic materials is currently poorly understood, and effective techniques for tight binding between metal surfaces and soft tissue are still under development. Therefore, we here investigated whether the surface roughness of titanium affects fibroblast adhesion and proliferation. Our results showed that a surface roughness of ~100 nm reduces fibroblast function. On such surfaces, distinct focal adhesion was not observed. These findings improve the general understanding of the binding compatibility between soft tissues and metallic materials.

J Appl Biomater Funct Mater 2016; 14(1): e65 - e69

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/jabfm.5000260

Authors

Satoshi Migita, So Okuyama, Kunitaka Araki

Article History

Disclosures

Financial support: This work was supported by JSPS KAKENHI Grant-in-Aid for Young Scientists (B) Grant Number 25820397.
Conflict of interest: The authors declare no conflict of interest associated with this manuscript.

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Authors

Affiliations

  • Graduate School of Science and Engineering, Yamagata University, Yonezawa, Yamagata - Japan

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