SEARCH Articles Figures Tables Activities of both thrombin and FX adsorbed on the PEUN surface are higher than on the glass surface in the case of the bare material surfaces, as is shown in Table V. However, the relative specific activities of both thrombin and FX adsorbed on an albumin-precoated PEUN surface are significantly lower than on an albumin-precoated glass surface. That is, albumin molecules adsorbed on a PEUN surface may bind to thrombin and FX with higher affinity [Publishers Imprint]