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Multifunctional HA/Cu nano-coatings on titanium using PPy coordination and doping via pulse electrochemical polymerization†
Biomaterials Science ( IF 5.8 ) Pub Date : 2018-01-31 00:00:00 , DOI: 10.1039/c7bm01104k Yingbo Wang 1, 2, 3, 4 , Ling Yan 1, 2, 3, 4 , Ruoyu Cheng 5, 6, 7, 8, 9 , Mirigul Muhtar 1, 2, 3, 4 , Xinxin Shan 1, 2, 3, 4 , Yi Xiang 5, 6, 7, 8, 9 , Wenguo Cui 5, 6, 7, 8, 9
Biomaterials Science ( IF 5.8 ) Pub Date : 2018-01-31 00:00:00 , DOI: 10.1039/c7bm01104k Yingbo Wang 1, 2, 3, 4 , Ling Yan 1, 2, 3, 4 , Ruoyu Cheng 5, 6, 7, 8, 9 , Mirigul Muhtar 1, 2, 3, 4 , Xinxin Shan 1, 2, 3, 4 , Yi Xiang 5, 6, 7, 8, 9 , Wenguo Cui 5, 6, 7, 8, 9
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The incorporation of hydroxyapatite nanoparticles onto the surface of titanium is an effective method to improve its osteoinductive ability. However, there are still issues with the hydroxyapatite nanoparticle coatings fabricated using current methods, such as particle aggregation and unsatisfactory binding ability with the matrix, in addition to the difficulties in the multi-functionalization of antibacterial, anti-wear and bioinductive ability. In the present study, we propose a strategy to fabricate a refined hydroxyapatite nanoparticles/copper nanoparticles co-deposition titanium matrix by the mediation of pulse electrochemical polymerized pyrrole through its coordination and doping of cations and anions. During this process, PO43− in the electrolyte is doped into the corresponding anion structure in the polypyrrole chain and forms HA with Ca2+ and OH− because of electrostatic interaction. The bioactivity investigation indicates that the composite coatings are able to induce the formation of apatite in supersaturated calcium phosphate solution. Furthermore, the friction and wear tests show that the composite coatings improve the friction properties of the material to a certain extent. The composites also exhibit an antibacterial rate of 97% in the antibacterial test. Finally, in virtue of the dual regulation of polypyrrole by coordination and doping, we successfully fabricate multifunctional hydroxyapatite/copper nano-coatings on titanium surfaces.
中文翻译：
使用PPy配位并通过脉冲电化学聚合进行掺杂的钛上多功能HA / Cu纳米涂层†
将羟基磷灰石纳米粒子掺入钛表面是提高其骨诱导能力的有效方法。然而，除了在抗菌，抗磨和生物诱导能力的多功能化方面的困难之外，使用当前方法制造的羟基磷灰石纳米颗粒涂层仍然存在问题，例如颗粒聚集和与基质的不令人满意的结合能力。在本研究中，我们提出了一种通过脉冲电化学聚合吡咯通过其配位和阳离子和阴离子掺杂来制备精制的羟基磷灰石纳米颗粒/铜纳米颗粒共沉积钛基质的策略。在此过程中，PO 4 3−在电解质掺杂到在聚吡咯链和形式HA用Ca相应的阴离子结构2+和OH -因为静电相互作用。生物活性研究表明，复合涂层能够诱导过饱和磷酸钙溶液中磷灰石的形成。此外，摩擦和磨损测试表明，复合涂层在一定程度上改善了材料的摩擦性能。该复合材料在抗菌测试中还显示出97％的抗菌率。最后，凭借配位和掺杂对聚吡咯的双重调控，我们成功地在钛表面上制备了多功能羟基磷灰石/铜纳米涂层。
更新日期：2018-01-31
中文翻译：
使用PPy配位并通过脉冲电化学聚合进行掺杂的钛上多功能HA / Cu纳米涂层†
将羟基磷灰石纳米粒子掺入钛表面是提高其骨诱导能力的有效方法。然而，除了在抗菌，抗磨和生物诱导能力的多功能化方面的困难之外，使用当前方法制造的羟基磷灰石纳米颗粒涂层仍然存在问题，例如颗粒聚集和与基质的不令人满意的结合能力。在本研究中，我们提出了一种通过脉冲电化学聚合吡咯通过其配位和阳离子和阴离子掺杂来制备精制的羟基磷灰石纳米颗粒/铜纳米颗粒共沉积钛基质的策略。在此过程中，PO 4 3−在电解质掺杂到在聚吡咯链和形式HA用Ca相应的阴离子结构2+和OH -因为静电相互作用。生物活性研究表明，复合涂层能够诱导过饱和磷酸钙溶液中磷灰石的形成。此外，摩擦和磨损测试表明，复合涂层在一定程度上改善了材料的摩擦性能。该复合材料在抗菌测试中还显示出97％的抗菌率。最后，凭借配位和掺杂对聚吡咯的双重调控，我们成功地在钛表面上制备了多功能羟基磷灰石/铜纳米涂层。
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