Figure 8.

Modulation of neutrophil (a) and monocyte (b) CD11b expression after 60 min whole-blood incubation with the PPy–cellulose membranes and the reference materials (soluble heparin concentration 1.5 IU ml⁻¹). The results are expressed as mean fluorescence intensity ± s.e. of the mean (n = 6). The evaluation of CD11b expression in neutrophils and monocytes did not show any significant difference between the studied membranes. (H, heparinized composite; H Red-Ox, heparinized composite after reduction–oxidation cycles; NH, non-heparinized composite; CA, cellulose acetate; RC, regenerated cellulose; PS polysulphone, 0.2 represents 0.2 µm pore size and 0.45 indicates membranes with 0.45 µm pore sizes.)