Figure 5.

Modification of cell adhesion as a result of RIE plasma surface treatment. Membranes were treated with low power (100 W) and high power (200 W) RIE O₂ plasma, and cell attachment was quantified for cells seeded on samples 1, 7, and 14 days after plasma treatment to assess any potential deterioration in the positive effect of plasma treatment over time. Use of RIE treatment led to a significant increase in the number of adhered cells as compared to non-treated membranes, leading to similar results of cell adhesion on tissue culture polystyrene, while the increasing RIE power from 100 W to 200 W led to no significant difference in cell adhesion. The positive effect of RIE treatments remained persistent until 14 days after the treatment.