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Home > News > Metal nano-bumps could improve artificial body parts

November 3rd, 2003

Metal nano-bumps could improve artificial body parts

Biomedical engineers at Purdue University have proven that bone cells attach better to metals with nanometer-scale surface features, offering hope for improved prosthetic hips, knees and other implants. Conventional titanium alloys used in hip and knee replacements are relatively smooth their surfaces possess bumps measured in microns or millionths of a meter. Natural bone and other tissues, however, have rougher surfaces with bumps about 100 nanometers or billionths of a meter wide.

Purdue News

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