Figure 2.

Examination of biological properties of sFDM in vitro. (A) Quantitative assessment of angiogenic factors profile of both FDM and sFDM. (B) Human umbilical vein endothelial cells (HUVEC) morphology and cell adhesion when treated with three different types of media on day 1 and 3. Red boxes show the enlarged images of cell morphology at 3 days. (C) Quantitative analysis of cell proliferation after three different treatments for up to 3 days as compared to that of serum-free group. (D) Cultivation of THP-1 cells on the TCP, PH, and PH/sFDM. (E) Determination of VEGF released from each group at specific time points (day 1 and 3). Statistically significant difference (* p < 0.05, ** p < 0.01, **** p < 0.0001).