The performance center was represented at the Fraunhofer Gesellschaft's joint stand at the world's largest event for the medical industry, Medica, in Düsseldorf.
November 14, 2022
The performance center was represented at the Fraunhofer Gesellschaft's joint stand at the world's largest event for the medical industry, Medica, in Düsseldorf.
The performance center was represented at the Fraunhofer Gesellschaft's joint stand at the world's largest event for the medical technology industry, Medica, in Düsseldorf.
Laser-structured surfaces for better cell adhesion
Among other things, the DLIP laser module for surface functionalization of implant materials was shown here, which enables better adhesion of bone cells. In this process, a single laser beam is split into two partial beams, which are then superimposed on the substrate surface, where they form a linear interference pattern with a specific spatial period. The interference pattern is transferred directly to the implant surface and osteoconductive microstructures are added to the surface. Laser processing of the implant surface does not require any additional materials such as abrasives or acids to form the surface shape. It is therefore particularly sustainable and cost-efficient.
Compared to a shape-etched surface, a cell study demonstrated and increase in the number of osteoblasts by up to 250% on DLIP-machined surfaces. Laser processing additionally contributes to a thickening of the oxide layer and a change in the wetting behavior.