کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5511635 1540214 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of dextrin-stabilized colloidal silver nanoparticles and their application as modifiers of cement mortar
ترجمه فارسی عنوان
سنتز نانوذرات نقره کلوئیدی تثبیت شده با دکسترین و کاربرد آنها به عنوان اصلاح کننده های ملات سیمان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
چکیده انگلیسی
Various commercial dextrins were used as reducing and stabilizing agents for a novel one-step synthesis of silver nanoparticles from ammonia complexes of silver ions. As a result, stable colloids of silver were formed during the reaction with the particle size being the function of the dextrin type. The obtained colloids were characterized by UV-vis spectrophotometry, size distribution (using Non-Invasive Backscatter optics) and transmission electron microscopy (TEM). The achieved results clearly indicate the possibility of low-cost production of large quantities of colloidal silver nanoparticles using materials derived from renewable sources. The resulting silver colloids can be used for different purposes, e.g. as bactericidal agents. Combination of the aforementioned properties of nanosilver particles with plasticizing properties of dextrin enables to obtain cement mortars with increased workability and enhanced compressive strength. Moreover, the obtained material is also characterized by increased immunity to adverse impact of microorganisms.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 104, Part A, November 2017, Pages 165-172
نویسندگان
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