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首页> 外文期刊>Journal of Materials Engineering and Performance >Electrochemical and Antibacterial Performance of CoCrMo Alloy Coated with Hydroxyapatite or Silver Nanoparticles
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Electrochemical and Antibacterial Performance of CoCrMo Alloy Coated with Hydroxyapatite or Silver Nanoparticles

机译：羟基磷灰石或银纳米颗粒包覆的CoCrMo合金的电化学和抗菌性能

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摘要

This paper presents a comparative study of antimicrobial and electrochemical performance of CoCrMo alloy surface treated with hydroxyapatite coating or silver nanoparticles (nAg) in the presence/absence of albumin addition. Nanoparticles dimension was quantified using dynamic light scattering. Antibacterial activity was evaluated by a spread plate method, while electrochemical characterization of CoCrMo samples coated and uncoated was studied by open circuit potential and cyclic polarization experiments. Furthermore, all surface coatings characterization was investigated by transmission electron microscopy, scanning electron spectroscopy, and energy-dispersive x-ray spectroscopy. The highest corrosion rate in simulated body solution (SBF) is for untreated CoCrMo alloy, and the lowest value is for CoCrMo alloy treated with nAg after addition in SBF of 80 g/L albumin. Only the surface treated with nAg has anti-bacterial effect.
机译：本文介绍了在存在/不存在白蛋白的情况下，用羟基磷灰石涂层或银纳米颗粒（nAg）处理的CoCrMo合金的抗菌和电化学性能的比较研究。使用动态光散射定量纳米颗粒的尺寸。通过展板法评估抗菌活性，同时通过开路电势和循环极化实验研究涂覆和未涂覆的CoCrMo样品的电化学特性。此外，通过透射电子显微镜，扫描电子光谱和能量色散X射线光谱研究了所有表面涂层的表征。在未经处理的CoCrMo合金中，模拟体溶液（SBF）的腐蚀速率最高，而在加入80 g / L白蛋白的nBF中，经nAg处理的CoCrMo合金的腐蚀速率最低。仅用nAg处理过的表面具有抗菌作用。

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