کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1429420 | 987174 | 2013 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Functionalization of biodegradable magnesium alloy implants with alkylphosphonate self-assembled films Functionalization of biodegradable magnesium alloy implants with alkylphosphonate self-assembled films](/preview/png/1429420.png)
Mg and Mg-alloys are promising materials for biodegradable implants. In order to slowdown the Mg-alloy (AZ91D) degradation and enhance its biocompatibility, the alloy surface was modified with alkylphosphonate self-assembling films. The binding configuration and the structural organization of alkylphosphonate monolayers on the Mg-alloy surface were investigated using contact angle measurements, FTIR, and XPS. Combination of FTIR and XPS data indicated the presence of several different bonding modes (mono-, di-, and tri dentate) of phosphonate head groups with the alloy surface. The existence of well organized and ordered self-assembled alkylphosphonate monolayers with good barrier protecting properties in a physiological solution is a key step in the development of biocompatible Mg-alloy implants.
► Development of novel of biocompatible coatings for Mg-Alloy implants.
► Functionalization of biodegradable implant surface by alkylphosphonate SAMs.
► The binding mode and structural organization of SAMs are reviewed.
► Designed SAMs enhance the chemical stability of implants in physiological solutions.
Journal: Materials Science and Engineering: C - Volume 33, Issue 4, 1 May 2013, Pages 2152–2158