Electropolymerization of pyrrole on titanium substrates for the future development of new biocompatible surfaces

被引：95

作者：

De Giglio, E

Guascito, MR

Sabbatini, L

Zambonin, G

机构：

[1] Univ Bari, Dipartimento Chim, I-70126 Bari, Italy

[2] Univ Basilicata, Dipartimento Chim, I-85100 Potenza, Italy

[3] Univ Bari Policlin, Ist Anat Umana Normale, I-70124 Bari, Italy

来源：

BIOMATERIALS | 2001年 / 22卷 / 19期

关键词：

polypyrrole; electropolymerization; biocompatible polymers; titanium; X-ray photoelectron spectroscopy;

D O I：

10.1016/S0142-9612(00)00449-X

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

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.

引用

页码：2609 / 2616

页数：8

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