| 摘要 |
The invention relates to an implant of a biocorrodible metallic material with a passivating coating of a nanoparticle-containing silane coating and an associated method for producing the implant. To this end, the method comprises the steps: (i) Providing a blank for the implant comprising the biocorrodible metallic material, and (ii) Coating the blank with a homogenous colloidal solution of A) one or more bis-silanes of the formula (1): (RO)3—Si—X—Si(OR)3  (1) wherein R stands individually selected for C1-C10 alkyl or C2-C10 acyl; and X is a substituted or unsubstituted C1-C20 alkanediyl group or a substituted or unsubstituted C1-C20 heteroalkanediyl group with 1 to 5 heteroatoms selected from the group O, N and S; and B) Silicon dioxide nanoparticles with an average particle diameter in the range of 10 nm to 1 μm in water, ethanol or a mixture of the same, wherein the solution contains 1 to 20% by volume bis-silane and the concentration of the silicon dioxide nanoparticles in the solution is in the range of 1 to 100 ppm. |
