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. Author manuscript; available in PMC: 2015 Apr 1.
Published in final edited form as: Biomaterials. 2014 Jan 27;35(11):3678–3687. doi: 10.1016/j.biomaterials.2013.12.065

Fig. 3. Ability of silk to stabilize growth factors.

Fig. 3

(A) rVEGF stability in silk solution overtime. rVEGF was resuspended in PBS or in 2% silk solution and the concentration was assessed by Elisa overtime (16 days). (B) PG-Silk samples, upon gelation, were re-suspended in PBS or silk solution and TGFbeta1 release was measured after 7 days. (C) Growth factors in plasma, obtained from PG, were diluted 1:1 in PBS or 1:1 in 1% silk solution and maintained at 37°C, or room temperature, or 4°C. After 2 weeks the concentration of TGFbeta1 was assessed by Elisa.