کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11011549 | 1802865 | 2019 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural, mechanical and swelling characteristics of 3D scaffolds from chitosan-agarose blends
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This study aimed to explore the correlation between mechanical and structural properties of chitosan-agarose blend (Ch-Agrs) scaffolds. Porosity of Ch-Agrs scaffolds was constant at 93%, whilst pore sizes varied between 150 and 550âμm. Pore sizes of the blend scaffolds (150-300âμm) were significantly smaller than for either agarose or chitosan scaffolds alone (ca. 500âμm). Ch50-Agrs50 blend scaffold showed the highest compressive modulus and strength values (4.5â±â0.4 and 0.35â±â0.03âMPa) due to reduction in the pore size. The presence of agarose improved the stability of the blends in aqueous media. The increase in compressive properties and residual weight after the TGA test, combined with the reduction in the swelling percentage of the blend scaffolds suggested an interaction between chitosan and agarose via hydrogen bonding which was confirmed using FTIR analysis. All wet blend scaffolds exhibited instant recovery after full compression. This study shows the potential of Ch-Agrs scaffolds for repairing soft tissue.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 204, 15 January 2019, Pages 59-67
Journal: Carbohydrate Polymers - Volume 204, 15 January 2019, Pages 59-67
نویسندگان
Reda M. Felfel, Mark J. Gideon-Adeniyi, Kazi M. Zakir Hossain, George A.F. Roberts, David M. Grant,