Phagocyte accumulation on the surfaces of commonly used biomaterials, including PET, PVC, PE, PDMS, and PEU, after 16 hours of implantation in Swiss Webster mice.

Vertical lines denote ± 1 SD (n = 5 in all cases). Estimated numbers of Mφs (cells per square centimeter): 565 000 ± 159 000 on PET disks; 398 000 ± 108 000 on PVC disks; 221 000 ± 106 000 on PE disks; 39 000 ± 20 000 on PDMS disks; and 45 800 ± 14 300 on PEU disks. Estimated numbers of PMNs (cells per square centimeter): 44 800 ± 14 300 on PET disks; 61 700 ± 24 800 on PVC disks; 21 200 ± 14 400 on PE disks; 1700 ± 900 on PDMS disks; and 5500 ± 4100 on PEU disks.