کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5210160 | 1382877 | 2013 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dual-network hydrogels based on chemically and physically crosslinked chitosan/chondroitin sulfate
ترجمه فارسی عنوان
هیدروژل های دوگانه شبکه بر اساس کیتوزان / کاندرویتین سولفات شیمیایی و فیزیکی
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کلمات کلیدی
مواد نرم، هیدروژل، دوگانه شبکه، کیتوزان، کندرویتین سولفات،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
The formation of a novel type of hydrogel that combines chemically and physically crosslinked networks in a dual-network approach is presented here. Chitosan (CHT) and chondroitin sulfate (CS) were chemically modified with glycidyl methacrylate (GMA) and then crosslinked. The chemical hydrogels (CHT- and CS-gel) were deposited in different vials filled with CS or CHT stock solutions to form the dual-network hydrogels. FTIR, TGA and XRD analyses were used to characterize the chemical and the dual-network hydrogels. The percentages of CS or CHT complexed to the CHT- and CS-gel networks were calculated from the HPLC data. SEM images and swelling assays indicated that the formation of a secondary network by polyelectrolyte complexation changes the morphologies and liquid uptake capacities of the chemical hydrogels. Hence, the data and discussion presented here enable the formation of dual-network hydrogels with very interesting properties, such as the ability to interact with charged specimens (i.e., drugs, proteins or metal ions), a desirable feature for a wide range of applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 73, Issue 12, December 2013, Pages 1662-1671
Journal: Reactive and Functional Polymers - Volume 73, Issue 12, December 2013, Pages 1662-1671
نویسندگان
André R. Fajardo, Silvia L. Fávaro, Adley F. Rubira, Edvani C. Muniz,