کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1659089 | 1008368 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Plasma pre-treatment and TiO2 coating of PMMA for the improvement of antibacterial properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The antibacterial properties of polymethyl methacrylate (PMMA) are enhanced by coating with TiO2 films. The transparent TiO2 films on plasma-treated PMMA are prepared by sol-gel dip coating. The modified surfaces are characterized by XRD, AFM, ATR-FTIR, SEM, UV-vis spectroscopy, and contact angle measurements. Finally, the antibacterial properties are evaluated using the method of plate-counting of Staphylococcus aureus (gram positive) and Escherichia coli (gram negative). It is found that the anatase-TiO2 film is well-conglutinated on PMMA surface with an average crystallite size of ca. 4Â nm. The as-prepared TiO2/PMMA exhibits excellent photoinduced antibacterial effect for the sterilization of bacteria under indoor natural light, and about 100% of both bacteria are inactivated within 2Â h illumation. Compared to PMMA without any treatment, the superior anti-adhesion capability of the TiO2/PMMA surface is also demonstrated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 205, Issue 2, 15 October 2010, Pages 465-469
Journal: Surface and Coatings Technology - Volume 205, Issue 2, 15 October 2010, Pages 465-469
نویسندگان
Wenyue Su, Shichao Wang, Xuxu Wang, Xianzhi Fu, Jingning Weng,