کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1386909 982540 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of sonication and aging on the templating attribute of starch for “green” silver nanoparticles and their interactions at bio-interface
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Effect of sonication and aging on the templating attribute of starch for “green” silver nanoparticles and their interactions at bio-interface
چکیده انگلیسی

The present work reports the exploitation of starch as a macromolecular matrix in the domain of ‘green’ bio-nanotechnology. The differential templating attributes of starch under ambient aging and sonication for biomimetically generated silver nanoparticles were investigated. Morphology-directing action of the starch-bioreductant (i.e., Mesua ferrea Linn. leaf aqueous extract, adjusted to basic pH) complex resulted in a branched silver structure (∼440 nm, along the long axis with branch average diameter of 11.5 nm) upon aging for 24 days. Starch assisted spherical silver nanoparticles (average diameter, 5.4 nm) were obtained under sonication parameters of 3 min, 0.5 cycles at 60% amplitude, optimized through response surface methodology. Evaluation of phytotoxicity on Cucumis sativus, compromise on amplification of a 263 base pair mammalian DNA sequence in polymerase chain reaction (PCR) and anti-microbial potency demonstrated differential action of the carbohydrate templated aged and sonicated silver nanoparticles at the bio-interface.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 83, Issue 3, 30 January 2011, Pages 1245–1252
نویسندگان
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