کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8330501 | 1540240 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of collagen addition on the thermal and morphological properties of chitosan/xanthan hydrogels
ترجمه فارسی عنوان
تاثیر افزودن کلاژن بر خصوصیات حرارتی و مورفولوژیکی هیدروژل های کیتوزان / زانتان
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کلمات کلیدی
کیتوزان، کسانتان، کلاژن،
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
چکیده انگلیسی
This study investigates the collagen influence on thermal and morphological characteristics of chitosan/xanthan hydrogels for potential tissue engineering applications. Anionic collagen was prepared by selective hydrolysis of type I collagen found in bovine tendons. Chitosan was obtained from the partial deacetylation of squid pen β-chitin and xanthan was acquired from Fluka. The hydrogels were obtained in different ratios and were characterized by thermal and morphological analysis. FT-IR suggested only electrostatic interactions between NH3+ groups of chitosan and COOâ groups of xanthan and collagen. Thermogravimetric curves showed that hydrogels contain a great amount of water (above 98%) and the presence of collagen does not change this characteristic. Freezing-bound water transition in DSC curves was shifted to higher values due to the increase of water/polymer interaction, mainly when different ratios of chitosan and xanthan were used. SEM images showed sheet-form structures with the presence of collagen promoting an increase in pore size.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 80, September 2015, Pages 225-230
Journal: International Journal of Biological Macromolecules - Volume 80, September 2015, Pages 225-230
نویسندگان
Marilia M. Horn, Virginia C.A. Martins, Ana Maria de Guzzi Plepis,