کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8004608 | 1516658 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Durability of AZ31 magnesium biodegradable alloys polydopamine aided: Part 1
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The use of magnesium alloys, as a biodegradable medical device, is an interesting challenge for the biomaterials field. Its rapid degradation and the release of hydrogen, when exposed to biological fluids, are the main drawbacks for clinical applications. In this work, a coating made of polydopamine (PDOPA), is used as an intermediate layer to decrease the degradation rate of AZ31 magnesium alloy/polymeric coating system, when exposed to Hank's solution. Experimental results highlighted: (i) the formation of a thin PDOPA layer, (ii) an increased adhesion in the organic coating/metallic substrate system, (iii) a decrease of two orders of magnitude of the corrosion rate when the PDOPA film is used together with an external organic coating, (iv) the efficacy in the use of PDODA due to the synergistic effect of both, physical and chemical, interactions between the PDOPA layer and the organic coating.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnesium and Alloys - Volume 5, Issue 4, December 2017, Pages 412-422
Journal: Journal of Magnesium and Alloys - Volume 5, Issue 4, December 2017, Pages 412-422
نویسندگان
Tullio Monetta, Annalisa Acquesta, Anna Carangelo, Nicola Donato, Francesco Bellucci,