کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1430020 | 987193 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Chitosan/poly (vinyl alcohol) films containing ZnO nanoparticles and plasticizers Chitosan/poly (vinyl alcohol) films containing ZnO nanoparticles and plasticizers](/preview/png/1430020.png)
In this study ZnO nanoparticles were prepared by the Pechini method from a polyester by reacting citric acid with ethylene glycol in which the metal ions are dissolved, and incorporated into blend films of chitosan (CS) and poly (vinyl alcohol) (PVA) with different concentrations of polyoxyethylene sorbitan monooleate, Tween 80 (T80). These films were characterized by infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), swelling degree, degradation of films in Hank's solution and the mechanical properties. Besides these characterizations, the antibacterial activity of the films was tested, and the films containing ZnO nanoparticles showed antibacterial activity toward the bacterial species Staphylococcus aureus. The observed antibacterial activity in the composite films prepared in this work suggests that they may be used as hydrophilic wound and burn dressings.
Journal: Materials Science and Engineering: C - Volume 30, Issue 4, 10 May 2010, Pages 503–508