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Colloidal particle based electrodeposition coatings on NiTi alloy: Reduced releasing of nickel ions and improved biocompatibility

机译:NiTi合金上的基于胶体颗粒的电沉积涂层:减少镍离子的释放并提高生物相容性

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摘要

Photo-cross linking copolymer Poly (2-Hydroxyethyl methacrylate-co-2-(Dimethylamino) ethyl methacrylate-co-7-hydroxy-4-methylcoumarin methacrylate) (PHDC)) was first synthesized by free radical polymerization of 7-hydroxy-4-methylcoumarin methacrylate (CA), 2-Hydroxyethyl methacrylate (HEMA) and 2-(Dimethylamino)ethyl methacrylate (DMA). Then, the copolymers were self-assembled into colloidal particles and immobilized on the NiTi alloy by a simple one-step electrophoretic deposition. After irradiation, a photo-crosslinked coating was obtained. The structure and morphology were characterized by OCA and SEM. The copolymer coatings could significantly decrease the release of nickel ions into the environment and reduce cytotoxicity inducing by nickel ions according to immersion experiment. Meanwhile, the coatings have good cytocompatibility. This work provides a simpler polymer coating method to inhibit the release of toxic ions by inducing ion adsorption with certain molecular structures, which have potential for biomedical applications such as artificial bone and bone fixation device. (C) 2018 Elsevier B.V. All rights reserved.
机译:光交联共聚物首先通过7-羟基-4的自由基聚合反应合成聚(甲基丙烯酸2-羟乙酯-甲基-2-丙烯酸(2-二甲氨基)乙基甲基酯-甲基-7-羟基-4-甲基香豆素)(PHDC))。甲基丙烯酸2-甲基香豆素(CA),甲基丙烯酸2-羟乙酯(HEMA)和甲基丙烯酸2-(二甲基氨基)乙酯(DMA)。然后,将共聚物自组装成胶体颗粒,并通过简单的一步电泳沉积将其固定在NiTi合金上。照射后,获得光交联的涂层。通过OCA和SEM对结构和形态进行表征。根据浸没实验,该共聚物涂层可以显着减少镍离子向环境中的释放,并减少镍离子诱导的细胞毒性。同时,涂层具有良好的细胞相容性。这项工作提供了一种更简单的聚合物涂覆方法,通过诱导具有某些分子结构的离子吸附来抑制有毒离子的释放,这对于生物医学应用(如人造骨和骨固定装置)具有潜力。 (C)2018 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《Materials Letters》 |2018年第1期|228-231|共4页
  • 作者单位

    Jiangnan Univ, Sch Chem & Mat Engn, Key Lab Synthet & Biol Colloids, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China;

    Jiangnan Univ, Sch Chem & Mat Engn, Key Lab Synthet & Biol Colloids, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China;

    Jiangnan Univ, Sch Chem & Mat Engn, Key Lab Synthet & Biol Colloids, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China;

    Jiangnan Univ, Sch Chem & Mat Engn, Key Lab Synthet & Biol Colloids, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China;

    Jiangnan Univ, Sch Chem & Mat Engn, Key Lab Synthet & Biol Colloids, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China;

    Jiangnan Univ, Sch Chem & Mat Engn, Key Lab Synthet & Biol Colloids, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China;

    Jiangnan Univ, Sch Chem & Mat Engn, Key Lab Synthet & Biol Colloids, Minist Educ, Wuxi 214122, Jiangsu, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Polymers; Metals and alloys; Biomaterials; Electrodeposition; Coating; Nickel ions;

    机译:聚合物;金属和合金;生物材料;电沉积;涂层;镍离子;

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