Fig. 1.

Protein resistance of POEGMA brushes. (A) Exposure of coatings to sera, monitored by SPR; dextran (red line), triethylene glycol 4 SAM (blue line) and a POEGMA brush (30 nm, black line) were exposed to whole horse serum for 5 min; a POEGMA brush (30 nm, black dashed line) was exposed to foetal bovine serum for 5 min. (B) Stability of POEGMA brushes upon storage: brushes were stored in ambient conditions (bench drawer) and their protein resistance to foetal bovine (blue, 10%, green, 100%) and bovine (orange 10%, red, 100%) sera was measured by SPR (exposure for 5 min, followed by 10 min washing with PBS, at a flow rate of 10 μl/min). Measurements were carried out in triplicates.