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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: Biomaterials. 2010 Dec 13;32(8):2059–2069. doi: 10.1016/j.biomaterials.2010.11.038

Figure 2.

Figure 2

Heparin cross-linked on PCL scaffold for 0, 1 and 15 hours of reaction duration. Toluidine blue assay (A, D, G), fluoresceine-conjugated heparin (B, E, H) and TEM (C, F, I) displays increase in heparin content with reaction time. Arrows in F, I indicate thickness of heparin layer. “P” in C, F, I represent the strut of PCL scaffold. Scale bar A, D, E= 3 mm; scale bar B, E, H =925 nm; scale bar C, F, I=250 μm.