Engineering of bone fixation metal implants biointerface¡ªApplication of parylene C as versatile protective coating

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• 作者：Monika Cie?lik ; S?awomir Zimowski ; Monika Go?da ; Klas Engvall ; Jinshan Pan ; Wies?aw Rakowski ; Andrzej Kotarba
• 关键词：Parylene C ; Stainless steel ; Implant ; Coating ; Wear resistance ; Coefficient of friction
• 刊名：Materials Science and Engineering: C
• 出版年：2012
• 出版时间：1 December, 2012
• 年：2012
• 卷：32
• 期：8
• 页码：2431-2435
• 全文大小：647 K

文摘

The tribological and protective properties of parylene C coatings (2-20 ¦Ìm) on stainless steel 316L implant materials were investigated by means of electrochemical measurements and wear tests. The thickness and morphology of the CVD prepared coatings were characterized by scanning electron and laser confocal microscopy. The stability of the coatings was examined in contact with Hanks' solution and H₂O₂ (simulating the inflammatory response). It was concluded that silane-parylene C coating with the optimum thickness of 8 ¦Ìm exhibits excellent wear resistance properties and limits the wear formation. The engineered versatile coating demonstrates sufficient elastomer properties, essential to sustain the implantation surgery strains and micromotions during long-term usage in the body.