Figure 3.

Adhesion of platelets on the pristine Ti-HA, Ti-Etch, Ti-plasma-sprayed, and ZrO₂ surfaces (a) (acid phosphatase activity determination; two independent experiments, the platelet number on the TCPS control was 4 900 platelets/cm² for experiment 1 and 470 platelets/cm² for experiment 2). SEM photograph of TCPS with the plasma/platelets coating (b). The outlined shapes correspond to adhered and spread platelets; the round-shaped white objects represent aggregated platelets. The platelet activation expressed as a serotonin production (c) (HPLC analysis, 5 parallel samples).