Positively charged bioactive Ti metal prepared by simple chemical and heat treatments.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 20444711.
- Also identified by DOI 10.1098/rsif.2010.0129.focus and PMC identifier 3024574.
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Abstract
A highly bioactive bone-bonding Ti metal was obtained when Ti metal was simply heat-treated after a common acid treatment. This bone-bonding property was ascribed to the formation of apatite on the Ti metal in a body environment. The formation of apatite on the Ti metal was induced neither by its surface roughness nor by the rutile phase precipitated on its surface, but by its positively charged surface. The surface of the Ti metal was positively charged because acid groups were adsorbed on titanium hydride formed on the Ti metal by the acid treatment, and remained even after the titanium hydride was transformed into titanium oxide by the subsequent heat treatment. These results provide a new principle based on a positively charged surface for obtaining bioactive materials.
Medical subject headings
- Biocompatible Materials
- Hot Temperature
- Hydrochloric Acid
- Sulfuric Acids
- Tibia
- Titanium