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XRD patterns of hydroxyapatite nanopowders (N-HAp) nanopowders and ICDD-PDF (International Center for Diffraction Data- Powder Diffraction File) 9-432 (a); TEM image of N-HAp nanopowders (b); SEM micrograph of N-HAp (c); EDX spectra of N-HAp nanopowders (d); elemental mapping of N-HAp nanopowders (e).
