Implants with textured surface and methods for producing the same
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United States of America Patent
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Mar 8, 2011
Grant Date -
Dec 28, 2006
app pub date -
Jun 23, 2005
filing date -
Jun 23, 2005
priority date (Note) -
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Abstract
Compositions and methods are provided for preparing a metal substrate having a uniform textured surface with a plurality of indentations with a diameter in the nanometer and micrometer range. The textured surface is produced by exposing the substrate to an etching fluid comprising a hydrogen halide acid and/or an oxyacid, a chloride containing compound, and an oxidizing agent. The etching solution can be used at ambient temperature without damaging the metal elements on the substrate surface. This textured surface enhances adherence of coatings or cells onto the textured surface, improves the retention of proteins on the surface, and encourages bone in-growth.
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