“…Recent studies also showed retardant effects of HAp nanoparticles on cancer cells [8]. Currently, HAp is commonly the material of choice for various biomedical applications, e.g., as a replacement of bony and periodontal defects [9], alveolar ridge [10], middle ear implants [11], tissue engineering systems [12], drug delivery agent [13], and bioactive coating onto metallic osseous implants [14]. The general importance of HAp and its derivatives has also led to its numerous other non-medical industrial and technological applications [15,16].…”