Electropolymerization of pyrrole on titanium substrates for the future development of new biocompatible surfaces
Electropolymerization of pyrrole on titanium substrates for the future development of new biocompatible surfaces
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DOI：
10.1016/s0142-9612(00)00449-x
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发表时间：
2001-10-01
期刊：
影响因子：
14
通讯作者：
Zambonin, G
中科院分区：
文献类型：
--
作者：
De Giglio, E;Guascito, MR;Zambonin, G
钛及其合金以其优异的力学性能和耐腐蚀性被广泛应用于承重植入物。为了改善其在骨结合方面的性能，建议使用生物活性涂层。聚吡咯(PPy)被选为涂层聚合物，因为它能够直接电化学生长到任何形状和尺寸的金属衬底上，从而获得显著附着力的覆盖层。这种聚合物除了保护金属植入物免受腐蚀外，还可以用生物活性分子进行表面修饰，从而刺激与骨组织的正向相互作用。在这项工作中，我们研究了聚吡咯在钛和钛铝钒两种衬底上的电合成。用X射线光电子能谱(XPS)和扫描电子显微镜(SEM)对不同条件下制备的聚合物薄膜的化学成分和表面形貌进行了分析。(C)2001爱思唯尔科学有限公司。保留所有权利。
Titanium and its alloys are widely used in load-bearing implants as a result of their excellent mechanical properties and corrosion resistance. In order to improve their performances with respect to osseointegration, the use of bioactive coatings has been suggested. Polypyrrole (PPy) has been chosen as coating polymer because of its ability to be electrochemically grown directly onto metallic substrates, of any shape and dimension, leading to remarkably adherent overlayers. This polymer, in addition to protecting the metal implant against corrosion, could be surface modified with biologically active molecules able to stimulate positive interactions with bone tissue. In this work, PPy electrosynthesis on both titanium and Ti-Al-V substrates has been investigated. The chemical composition and the morphology of the polymeric films, deposited under different conditions, were evaluated by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM), respectively. (C) 2001 Elsevier Science Ltd. All rights reserved.