Study on europium-doped hydroxyapatite nanoparticles by fourier transform infrared spectroscopy and their antimicrobial properties

Fourier transform infrared spectroscopy (ft-ir) analysis was conducted on europium-doped hydroxyapatite,c a 10 - x e u x (po4)6(oh) 2 nanocrystalline powders (eu:hap) with 0 ≤ x e u ≤ 0.2. antimicrobial studies were also performed for the first time on eu:hap. the antimicrobial properties of eu:hap nanoparticles with 0 ≤ x e u ≤ 0.2 on gram-negative (e. coli atcc 25922,pseudomonas aeruginosa 1397) and gram-positive (staphylococcus aureus 0364,enterococcus faecalis atcc 29212) bacteria systems and a species of fungus (candida albicans atcc 10231) were reported. our study demonstrates that the antimicrobial activity of eu:hap nanoparticles is dependent on the europium concentration. © 2013 simona-liliana iconaru et al.