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Titanium crystal orientation as a tool for the improved and regulated cell attachment
Author(s) -
Faghihi Shahab,
Azari Fereshteh,
Szpunar Jerzy A.,
Vali Hojatollah,
Tabrizian Maryam
Publication year - 2008
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.32275
Subject(s) - materials science , osseointegration , adhesion , titanium , cell adhesion , biomaterial , osteoblast , fibroblast , cell , nanotechnology , implant , biophysics , biomedical engineering , cell culture , in vitro , composite material , chemistry , metallurgy , biology , medicine , biochemistry , surgery , genetics
Cell adhesion is a fundamental process that controls cell proliferation, migration, and differentiation and is crucial for biomaterial‐tissue integration. Osteoblast attachment on the surfaces of implant materials is, therefore, essential for the proper function of any implant in which osseointegration is required. Although many reports are available on osteoblast attachment using different surface modification, there is no specific report, so far, that investigates the effect of atomic order of specific crystallographic orientation of substrates on cell behavior. A novel coculture system is proposed to show the differential response of preosteoblast and fibroblast cell lines to the titanium single‐crystal substrates. Our investigation has shown that surface recognition by the cell is influenced by the atomic structure of the surface leading to cell‐type‐specific adhesion. The degree of preosteoblast attachment is significantly higher on the Ti‐(11 2 0), whereas the fibroblast adhesion is increased on the Ti‐(10 1 0). This demonstrates that the three distinct faces of titanium substrates differ greatly in their capacity to serve as cell adhesive substrates. It also provides clear evidence for the role of crystal structure in regulating and improving cell–substrate interactions relevant for the optimal function of bone implant materials. © 2008 Wiley Periodicals, Inc. J Biomed Mater Res, 2009