Table 3: Cell population doubling time (hours) of rat aortic smooth muscle cells from day 1 to 2, day 2 to 5, and day 5 to 7 after seeding on nonmodified LDPE (pristine), LDPE irradiated with plasma (plasma), LDPE irradiated with plasma and grafted with glycine (Gly), polyethyleneglycol (PEG), bovine serum albumin (BSA), colloidal carbon particles (C), bovine serum albumin and C (BSA+C), and polystyrene dishes (PS dish).

Material/time intervalPristinePlasmaGlyPEGBSACBSA+CPS dish

Days 1-214.132.025.022.533.817.746.159.0
Days 2–525.513.611.39.411.015.710.811.2
Days 5–7−21.8*60.3−33.6*−45.5*−32.1*−66.9*−21.9*33.0

Nonproliferating cells.