外文题目: Novel gallium-doped amorphous calcium phosphate nanoparticles: Preparation, application and structure study
作者: Yang, Mingshun; Ren, Jinjun; Zhang, Ruili
刊名: J. Non-Cryst. Solids
年: 2017 卷: 466 页： 15--20
英文关键词:
ACP; Gallium ions; Antibacterial effect; Solid state NMR
DQ-DRENAR; GLASSES; BIOMATERIALS; SILVER; METAL; IRON; NMR
英文摘要:
Novel gallium-doped amorphous calcium phosphate (ACP) nanoparticles with different (Ga + Ca)/P molar ratio (1.8-3.0) were synthesized using sol-gel method. The antibacterial effects of the gallium-doped ACP samples were tested using disk diffusion assays, against Pseudomonas aeruginosa. The results showed that the gallium doped ACP samples have obvious effect of inhibiting the growth of Pseudomonas aeruginosa and could have a long term antibacterial properties. The local structures of these amorphous calcium phosphate nanoparticles were studied by P-31, Ga-71 single pulse, double-resonance and P-31 homonuclear dipolar recoupling solid state NMR techniques. The solid state NMR studies indicate that gallium-doped ACP nanoparticles are consisted of Gax(OH)yOz and calcium phosphate clusters. Gallium-doped ACP nanoparticles could be promising complex materials with the properties of antibacterial and biological mineralization.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1016/j.jnoncrysol.2017.03.034


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