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Characterization of Gelatin/Nano-Hydroxyapatite/Metformin scaffold (GHMS). Scanning electron microscopy (SEM) images of GHMS at different magnifications: (A) 100× and (B) 3500× (right). (C) X-ray diffractometry (XRD) patterns of natural bone tissue and GHMS. (D) Fourier transform infrared (FTIR) patterns of conventional hydroxyapatite (HAp), gelatin, metformin (MET), and GHMS (Table 1).
