کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7787360 | 1500624 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Gelling process for sodium alginate: New technical approach by using calcium rich micro-spheres
ترجمه فارسی عنوان
فرآیند زنگ زدگی برای آلژینات سدیم: روش جدید تکنیکی با استفاده از میکرو حوزه های غنی از کلسیم
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Alginate based materials have become an important class of products in many fields from the pharmaceutical industry to tissue engineering, because of their ability to create stimuli responsive hydrogels. We present a new technical approach for obtaining a controlled gelling process, based on the quantities of Ca2+ rich alginate micro-beads added as crosslinkers. The gels have been evaluated in light of the amount of Ca2+ added to the alginate solution, and in light of the different dimensions of the micro-beads, using rheological measurements to assess the variation in the storage modulus (Gâ²), loss modulus (Gâ²â²) and complex viscosity (η*) as well as swelling and deswelling tests. The methodology was developed to obtain a material with specific characteristics for application in the field of conservation. The material had to be able to create a stable gel after being applied on the artwork surface and to confine the solvent action at the interface during cleaning operations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 134, 10 December 2015, Pages 767-774
Journal: Carbohydrate Polymers - Volume 134, 10 December 2015, Pages 767-774
نویسندگان
Silvia Vicini, Maila Castellano, Marco Mauri, Enrico Marsano,