کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7781785 | 1500561 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of isolation methods of chitin nanocrystals on the properties of chitin-silver hybrid nanoparticles
ترجمه فارسی عنوان
اثر روش های جداسازی نانوبلورهای کیتین بر خواص نانوذرات هیبرید کریستین نقره
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Chitin nanocrystal (ChNC) was isolated using sulfuric acid hydrolysis (ChNCH2SO4), TEMPO-oxidation (ChNCTEMPO), and ammonium persulfate (ChNCAPS) methods, and used for the preparation of hybrid nanoparticles of ChNC/silver nanoparticles (AgNP). The ChNC exhibited a needle-shaped structure with a sulfate group content of 135â¯Î¼mol/g for ChNCH2SO4 and carboxyl content of 0.71 and 1.42â¯mmol/g for ChNCTEMPO and ChNCAPS, respectively. ChNC worked as a reducing and stabilizing agent for the production of AgNP and reduced the size of AgNP from 23.9â¯nm to 6.3â¯nm in the ChNC/AgNP hybrid. The carboxyl content of ChNC played a significant role for the nucleation, size distribution, and antibacterial activity of ChNC/AgNP. ChNC/AgNP hybrid, especially ChNCAPS/AgNP, exhibited strong antibacterial activity against food-borne pathogenic Gram-negative (E. coli) and Gram-positive (L. monocytogenes) bacteria. The prepared ChNC/AgNP hybrid nanomaterials have a high potential for the application to be used as a nanofiller to improve the properties of food packaging materials to extend the shelf-life of packaged food.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 197, 1 October 2018, Pages 349-358
Journal: Carbohydrate Polymers - Volume 197, 1 October 2018, Pages 349-358
نویسندگان
Ahmed A. Oun, Jong-Whan Rhim,