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. Author manuscript; available in PMC: 2013 Mar 19.
Published in final edited form as: Biomaterials. 2011 Jul 23;32(30):7432–7443. doi: 10.1016/j.biomaterials.2011.06.027

Figure 3.

Figure 3

Particle binding characterization. (A) Release profiles of heparin coated polystyrene particles in free heparin wash shows stability of VEGF covalent binding to particle. (B) Generation of high density and low density conditions for both particles with and without covalent binding indicates 1000 VEGF molecules/particle for high density condition, and 200 VEGF molecules/particle for low density condition. (C) VEGF is stably bound to heparin nanoparticles with different binding densities. Each successive wash has less VEGF until leveling (n = 3).