Fig. 6
From: Enhanced antimicrobial efficacy of hydroxyapatite-based composites for healthcare applications

(a) XPS survey spectra, and high resolution XPS survey spectra of (b) 10% Cu/HAp, (c) 10% Zn/HAp, and (d) 10% Ag/HAp composites.
From: Enhanced antimicrobial efficacy of hydroxyapatite-based composites for healthcare applications

(a) XPS survey spectra, and high resolution XPS survey spectra of (b) 10% Cu/HAp, (c) 10% Zn/HAp, and (d) 10% Ag/HAp composites.