کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8329583 | 1540212 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Self-assembled AuNPs for ingrain pigmentation of silk fabrics with antibacterial potency
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Nanogold was self-assembled for ingrain pigmentation of silk fabric with antibacterial properties. The functional groups of silk macromolecular polymeric chains were exploited for generation and stabilization of nanogold. Hydrogen peroxide was used for activation of silk molecular chains through increasing their reactivity and accessibility to be functionalized as manufacturer of nanogold without using any external agents. Effect of procedure sequencing was studied through addition of peroxide firstly (group A) and with Au salt (group B). Self-assembly of nanogold inside fabric was confirmed by electron microscope, X-ray diffraction and absorbance spectra. The particle size of the nanogold within fabric was estimated to be in range of 22-66Â nm (group A) and 18-49Â nm (group B). Due to LSPR of nanogold, silk fabrics were acquired violet color with good fastness properties. In distilled water and artificial sweat, 33.5-41.0% and 46.2-50.4% of Au was leached out from silk fabric, respectively after 24Â h. Very good antibacterial properties were estimated for ingrain colored fabric against E. coli and S. aureus via using the optical density measurements. Quite simplicity, timelessness and energy saving are advantages which were realized in the current work for silk functionalization.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 105, Part 1, December 2017, Pages 720-729
Journal: International Journal of Biological Macromolecules - Volume 105, Part 1, December 2017, Pages 720-729
نویسندگان
Hanan B. Ahmed, Nancy S. El-Hawary, Hossam E. Emam,