کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5210021 | 1382870 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Studies on physico-chemical and antibacterial properties of grafted pullulans solutions
ترجمه فارسی عنوان
مطالعات در مورد خواص فیزیکی، شیمیایی و ضد باکتری راه حل های پالکلان مجزا
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
The physico-chemical properties of three grafted pullulans (P) having linked poly(3-acrylamidopropyl)trimethylammonium chloride (pAPTAC) as side chains (P-g-pAPTAC1, P-g-pAPTAC2 and P-g-pAPTAC3 with 22.53, 29.05, and 34.51 (wt.%) of pAPTAC content in polymer, respectively) and possessing polyelectrolyte character were determined by light scattering analysis. All grafted pullulan aqueous solutions were tested in the presence of 0.5Â M NaCl, KCl, NaNO3 or KNO3. The biggest associations were recorded in 0.5Â M NaCl aqueous solutions for P-g-pAPTAC1, P-g-pAPTAC2 and P-g-pAPTAC3 according to the maximum values for Rg extracted from MALLS (multiangle laser light scattering) measurements. Also, the dominant conformation in salted solution of these polyelectrolytes was random coil as Debye plot analysis revealed. Antibacterial activity was tested by Kirby-Bauer diffusion method and all grafted pullulans dissolved in aqueous solutions of 0.5Â M NaCl have developed inhibition zone against Staphylococcus aureus (ATCC 25923).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 73, Issue 9, September 2013, Pages 1249-1254
Journal: Reactive and Functional Polymers - Volume 73, Issue 9, September 2013, Pages 1249-1254
نویسندگان
Anca Giorgiana Grigoras, Marieta Constantin, Vasile Cristian Grigoras, Simona Isabela Dunca, Lacramioara Ochiuz,