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Electrochemical deposition of conducting polymer coatings on magnesium surfaces in ionic liquid.

机译:导电聚合物涂层在离子液体中在镁表面上的电化学沉积。

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摘要

A conducting polymer-based smart coating for magnesium (Mg) implants that can both improve the corrosion resistance of Mg and release a drug in a controllable way is reported. As the ionic liquid is a highly conductive and stable solvent with a very wide electrochemical window, the conducting polymer coatings can be directly electrodeposited on the active metal Mg in ionic liquid under mild conditions, and Mg is highly stable during the electrodeposition. The electrodeposited poly(3,4-ethylenedioxythiophene) (PEDOT) coatings on Mg are uniform and can significantly improve the corrosion resistance of Mg. In addition, the PEDOT coatings can load the anti-inflammatory drug dexamethasone during the electrodeposition, which can be subsequently released upon electric stimulation.
机译:据报道,一种用于镁(Mg)植入物的导电聚合物基智能涂料既可以提高Mg的耐腐蚀性,又可以以可控的方式释放药物。由于离子液体是具有非常宽的电化学窗口的高导电性和稳定溶剂,因此可以在温和的条件下将导电聚合物涂层直接电沉积在离子液体中的活性金属Mg上,并且Mg在电沉积过程中非常稳定。镁上的电沉积聚(3,4-乙撑二氧噻吩)(PEDOT)涂层是均匀的,可以显着提高镁的耐腐蚀性。另外,PEDOT涂层可在电沉积过程中加载抗炎药地塞米松,随后在电刺激下释放。

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