title: In vitro fibroblast response to ultra fine grained titanium produced by a severe plastic deformation process.
abstract: The in vitro response of the mouse fibroblast cell line 3T3 on the surface of ultrafine grained titanium [produced by a severe plastic deformation (SPD) process] has been studied in this work. SPD Ti showed much higher strength than the coarse grained Ti and equivalent to that of Ti-6Al-4V alloy. Better cell proliferation was observed on SPD Ti compared to conventional Ti and Ti-6Al-4V alloy. This could be attributed to the increased surface free energy by reduction in the grain size and possibly the presence of a large number of nano size grooves at the triple point junctions in SPD Ti sample. There was no significant difference in the results of cytotoxicity tests of fine and coarse grained materials.
authors.affiliation: Department of Information and Electronic Materials Engineering, Paichai University, Daejeon, Korea. tnkim@mail.pcu.ac.kr
authors.forename: Taik Nam
authors.initials: TN
authors.lastname: Kim
authors.forename: A
authors.initials: A
authors.lastname: Balakrishnan
authors.forename: B C
authors.initials: BC
authors.lastname: Lee
authors.forename: W S
authors.initials: WS
authors.lastname: Kim
authors.forename: B
authors.initials: B
authors.lastname: Dvorankova
authors.forename: K
authors.initials: K
authors.lastname: Smetana
authors.forename: J K
authors.initials: JK
authors.lastname: Park
authors.forename: B B
authors.initials: BB
authors.lastname: Panigrahi
mesh_terms: D016475:3T3 Cells; D000818:Animals; D001672:Biocompatible Materials; D049109:Cell Proliferation; D005347:Fibroblasts / Q000187:drug effects*; D008422:Materials Testing; D051379:Mice; D010316:Particle Size; D019736:Prostheses and Implants; D013314:Stress, Mechanical; D014025:Titanium / Q000737:chemistry*
chemical_list: D001672:Biocompatible Materials; D014025:Titanium