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Scanning electron microscopy (SEM) images and Energy Dispersive Spectroscopy (EDS) spectra of Cur_WPI25_HAp (a) and Cur_WPI35_HAp (b) biomaterials after incubation in simulated body fluid (SBF). The experiment was performed for 7, 14, and 28 days according to ISO 23317:2007 standard: Implants for surgery—In vitro evaluation for apatite-forming ability of implant materials [35]. Magnification of SEM images = 10,000×; scale bar = 20 μm.
