Evaluation of the mineralized matrix and comparison to bone samples: A) TGA decomposition profiles of PCL, PCL/Col, human bone, PCL/Col-hADSCs, rat bone, and PCL/Clol-rADSCs under N2 atmosphere; B) x-ray photoelectron spectroscopy (XPS) general survey spectra for PCL, PCL/Col, human bone, PCL/Col-hADSCs, rat bone, and PCL/Col-rADSCs (@ = Ca2p peak, * = P2p peak); C)XPS chemical mapping of Ca2p and P2p on human and rat bone (B) and PCL/Col-hADSCs and PCL/Col-rADSCs (Mapping area = 0.44 mm2).