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. 2016 Apr 12;6:24186. doi: 10.1038/srep24186

Figure 2. Matrix characterization.

Figure 2

(A) Water content of the electrospun matrix with vacuum drying. Water content before vacuum drying is 9.69 ± 0.65%. Drying for 24 hours reduced water content to 5.59 ± 0.43%, while water content after 72 hours of drying is 5.30 ± 0.01% (P = 0.5; 24 and 72 hours). (B) The corresponding change in the glass transition temperature (Tg) of the electrospun matrix with vacuum drying. Matrix Tg before drying is 75 ± 16 °C. Drying for 24 hours increased Tg to 105 ± 12 °C, while 72 hours of drying resulted to a Tg of 122 °C ± 12 °C (P = 0.46; 24 and 72 hours) (C) Tg of the human serum adsorbed into the matrix and vacuum dried. Sample Tg after 2 hours of drying is −14 ± 10 °C. Drying for 3 hours significantly increased Tg to 15 ± 0 °C (P = 0.0037; 2 and 3 hours). Sample Tg further increased to 23 °C ± 5 °C after 4 hours of drying (P = 0.025; 3 and 4 hours). Error bars represent standard deviations from at least 3 independent experiments.