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Osteoblast Attachment on Biomaterials as a Function of Surface Charge
Journal article

Osteoblast Attachment on Biomaterials as a Function of Surface Charge

M Marcolongo, N DiNardo, N Hickok, R Tuan, K Pourezzaei, R Beard, D Brennan, P Heipp and T Phan
MRS proceedings, v 550, pp 121-126
01 Jan 1999

Abstract

Adhesion Implants (surgical) Medical applications Surface properties Surface topography Tissue Biomedical Engineering Bone Surface Chemistry
Bioactive materials such as calcium phosphate ceramics and bioactive glasses enhance bone tissue formation and then bond to bone tissue. In our work, we question what particular surface feature or features of bioactive materials are responsible for the bone tissue response. In this study we have uncoupled surface charge from surface chemistry, energy, and topography and have examined osteoblast adhesion to titanium surfaces of varying surface charge. We have shown that a negative surface charge promotes osteoblast adhesion by approximately 60% over a neutral surface and that conversely, a positive surface charge inhibits osteoblast adhesion by about 20%. Continued examination of surface characteristics that control cellular responses are warranted with the eventual goal of applying those desirable surface characteristics to any structural biomaterial for bone implant or tissue engineering applications.

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Web of Science research areas
Biotechnology & Applied Microbiology
Materials Science, Biomaterials
Materials Science, Multidisciplinary
Pharmacology & Pharmacy
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