کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8032583 | 1517955 | 2018 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Silver doped diamond-like carbon antibacterial and corrosion resistance coatings on titanium
ترجمه فارسی عنوان
ضد تیتانیوم کربن الماسی مانند کربن مقاوم در برابر خوردگی بر روی تیتانیوم
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کلمات کلیدی
الماس مانند پوشش کربن، نقره، اثر ضد باکتریایی، پایداری الکتروشیمیایی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
The present work is focused on the micro-structural, antibacterial potential and corrosion resistance of silver (Ag) doped diamond-like carbon (DLC) coatings deposited by Thermionic Vacuum Arc on titanium substrates. The Ag-DLC coatings have spherical nanoparticulates in the film, with a size of either â50â¯nm or â20â¯nm, depending on the deposition time. The incorporation of Ag in the DLC coatings was clearly evident, as observed in both energy dispersive X-ray spectroscopy and in structural analysis (X-ray diffraction), while X-ray photoelectron spectroscopy confirmed their composition as well as the presence of Ag and diamond-like carbon. Such coatings show an increase in the wettability, which can be related to the increase in the surface free energy. Comparing their corrosion resistance to bare (uncoated) titanium, an increased electrochemical stability is observed. Subsequently, the silver release profiles in phosphate buffer saline, for a 10â¯days period, were investigated; the release is initially fast in the first 12â¯h followed by saturation at 66â¯h. These coatings were further investigated for antibacterial efficacy against Staphylococcus aureus (model Gram positive bacteria) which confirms that the silver doped DLC coatings exhibit an excellent antibacterial activity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 657, 1 July 2018, Pages 16-23
Journal: Thin Solid Films - Volume 657, 1 July 2018, Pages 16-23
نویسندگان
Anca Mazare, Alexandru Anghel, Cristina Surdu-Bob, Georgeta Totea, Ioana Demetrescu, Daniela Ionita,