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The effect of zinc doping on the cytocompatibility and antibacterial efficacy of hydroxyapatite nanoparticles for treatment of bone infection
被引:3
|作者:
Cuypers, L. A. B.
[1
]
Bertsch, P.
[1
]
Wang, R.
[1
]
Harhangi, H. R.
[2
]
Joziasse, L. S.
[1
]
Walboomers, X. F.
[1
]
van Niftrik, L.
[2
]
Yang, F.
[1
]
Leeuwenburgh, S. C. G.
[1
]
机构:
[1] Radboud Univ Nijmegen, Med Ctr, Dept Dent Regenerat Biomat, Philips van Leydenlaan 25, NL-6525 EX Nijmegen, Netherlands
[2] Radboud Univ Nijmegen, Fac Sci, Dept Microbiol, Heyendaalseweg 135, NL-6525 AJ Nijmegen, Netherlands
来源:
基金:
荷兰研究理事会;
关键词:
Staphylococcus aureus;
Hydroxyapatite;
Metal ions;
Zinc;
Cytocompatibility;
Antibacterial properties;
NANO-HYDROXYAPATITE;
DOPED HYDROXYAPATITE;
DELIVERY;
IONS;
ANTIBIOTICS;
EFFICIENT;
TOXICITY;
SYSTEM;
COPPER;
SHAPE;
D O I:
10.1016/j.oceram.2023.100488
中图分类号:
TQ174 [陶瓷工业];
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
In the face of antibiotic resistance, new antibacterial methods are urgently needed for bone infections. Local delivery of therapeutic metal ions via osteogenic nanoparticles (NPs) is a viable alternative, but high concentrations risk toxicity to mammalian cells. In this study first four ions (Mg2+, Sr2+, Cu2+, Zn2+) were assessed for cytocompatibility and antibacterial properties. Only zinc ions showed antibacterial effects at non-toxic levels. Subsequently, zinc-doped hydroxyapatite nanoparticles (ZnHA NPs) were synthesized with varying zinc content (0-20 mol%). ZnHA NPs were characterized on size, morphology, composition, and antibacterial activity, with 15 mol% ZnHA NPs exhibiting the optimal balance between cytocompatibility and antibacterial efficacy. These NPs show promise as deliverable biomaterials for bone infection treatment.
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页数:10
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