Cellulose based nanofabrication; immobilization of silver nanoparticales and its size effect against Escherichia coli

被引：10

作者：

Kalwar, Kaleemullah ^{[1
]}

Bhutto, Muhammad Aqeel ^{[1
]}

Li Dali ^{[1
]}

Shan, Dan ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Environm & Biol Engn, Sinofrench Lab Biomat & Bioanalyt Chem, Nanjing 210094, Jiangsu, Peoples R China

来源：

MATERIALS RESEARCH EXPRESS | 2017年 / 4卷 / 10期

基金：

中国国家自然科学基金;

关键词：

cellulose acetate nanofibers; silver nanoparicales; immobilization; size effect; Escherichia Coli; ANTIBACTERIAL; NANOFIBERS;

D O I：

10.1088/2053-1591/aa925b

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Herein, cellulose acetate nanofibers were manufactured by electrospinning technique and hydrolyzed by alkaline hydrolysis. Size effect of AgNPs was observed against E. coli. The structure and composition of nanofibers were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM) and Fourier transform infrared spectroscopy (FTIR) and Thermal behavior was analyzed by thermogravimetric analyzer (TGA). Furthermore, AgNPs were incorporated on deacetylated nanofibers and then oxidized by KMnO4. AgNPs decorated cellulose nanofibers exhibiting strong bactericide activity against Escherichia coli BH5 alpha. Smaller in size 16.69 nm exhibited higher inhibition activity as compared to larger size 42.33 nm of AgNPs. It was shown that size of AgNPs has an effect on antimicrobial activity.

引用

页数：6

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