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Table 3 Amount of immobilised heparin on different polymer substrates *(dependent on PEO spacer length)

From: Influence of spacer length on heparin coupling efficiency and fibrinogen adsorption of modified titanium surfaces

Substrate Polyurethane-CO2H Polyurethane-NH2 Polyurethane-PEO Polyethylene
Heparin [μg/cm2] 1.40 ± 0.08 2.00 ± 0.13 0.24 ± 0.04–0.47 ± 0.08* 4.4 ± 0.1–4.7 ± 0.1