کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7790953 | 1500645 | 2014 | 34 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrospinning of chitosan/sericin/PVA nanofibers incorporated with in situ synthesis of nano silver
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Here, chitosan/sericin/poly(vinyl alcohol) as a biodegradable nanofibrous membrane was prepared through electrospinning with and without silver nitrate. The influences of spinning conditions including volume ratio of chitosan and sericin, voltage and spinning distance at constant feed rate on the fiber morphology and size distribution were examined by SEM and Image J software. The FT-IR spectrum and EDAX were used to indicate the chemical structure of nanofibrous membrane. In addition, the effect of AgNO3 on the nanofibers diameter and its antibacterial activity was investigated. The optimum conditions obtained with chitosan:sericin (50:50, v/v), 22Â kV voltage, 10Â cm spinning distance at 0.25Â mL/h feed rate to prepare nanofibers with small diameter and narrow size distribution without beads. The mean diameter of nanofibers was about 180Â nm while introducing AgNO3 led to smaller nanofibers diameter about 95Â nm. Moreover, the presence of AgNO3 produced an excellent antibacterial activity against Escherchia coli.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 113, 26 November 2014, Pages 231-239
Journal: Carbohydrate Polymers - Volume 113, 26 November 2014, Pages 231-239
نویسندگان
Elmira Hadipour-Goudarzi, Majid Montazer, Masoud Latifi, Ali Akbar Ghare Aghaji,