Differentiation of Bone Marrow Mesenchymal Stem Cells into Neural Lineage Cells Induced by bFGF-Chitosan Controlled Release System

Figure 1

FTIR-ATR characterization and thermogravimetric analysis. (a) FTIR transmission spectra of soluble bFGF (sbFGF), the bFGF-chitosan controlled release scaffold (bFGF-chitosan), and chitosan alone (chitosan) to reveal the combined effect of bFGF and chitosan; (b) amplification of image (a) at 1500 cm⁻¹; and (c-d) TGA and DTG of soluble bFGF, the bFGF-chitosan controlled release scaffold, and chitosan alone to reveal their thermal stability. The arrow refers to the difference between the three groups.

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