Preparation and analysis of macroporous TiO2 films on Ti surfaces for bone–tissue implants
F. Ahu Akin
Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607-7061
Search for more papers by this authorHala Zreiqat
School of Pathology, University of New South Wales, Sydney, NSW 2052, Australia
Search for more papers by this authorSandra Jordan
Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607-7061
Search for more papers by this authorMuthu B.J. Wijesundara
Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607-7061
Search for more papers by this authorCorresponding Author
Luke Hanley
Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607-7061
Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607-7061Search for more papers by this authorF. Ahu Akin
Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607-7061
Search for more papers by this authorHala Zreiqat
School of Pathology, University of New South Wales, Sydney, NSW 2052, Australia
Search for more papers by this authorSandra Jordan
Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607-7061
Search for more papers by this authorMuthu B.J. Wijesundara
Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607-7061
Search for more papers by this authorCorresponding Author
Luke Hanley
Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607-7061
Department of Chemistry, University of Illinois at Chicago, Chicago, Illinois 60607-7061Search for more papers by this authorAbstract
This article describes the preparation and analysis of macroporous TiO2 films on Ti surfaces, for application in bone tissue–Ti implant interfaces. These TiO2 bioceramic films have a macroporous structure consisting of monodisperse, three-dimensional, spherical, interconnected pores adjustable in the micron size range. Micron-sized polystyrene (PS) bead templates are used to precisely define the pore size, creating macroporous TiO2 films with 0.50, 16, and 50 μm diameter pores, as shown by scanning electron microscopy. X-ray photoelectron spectroscopy shows the films to be predominantly composed of TiO2, with ∼10% carbon. X-ray diffraction reveal rutile as the main phase when fired to the optimal temperature of 950°C. Preliminary experiments find that the in vitro proliferation of human bone-derived cells (HBDC) is similar on all three pore sizes. However, higher [3H]thymidine incorporation by the HBDC is observed when they are grown on 0.50- and 16-μm pores compared to the 50-μm pores, suggesting an enhanced cell proliferation for the smaller pores. © 2001 John Wiley & Sons, Inc. J Biomed Mater Res 57: 588–596, 2001
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