Radiation synthesis of silver nanostructures in cotton matrix
- 作者：Dagmara Chmielewska ; d.chmielewska@ichtj.waw.pl ; Bo偶ena Sartowska
- 关键词：Silver nanoparticles ; Electron beam irradiation ; Antimicrobial activity ; Cotton
- 刊名：Radiation Physics and Chemistry
- 出版年：2012
- 期刊代码：68_0969806x
- 类别：ph
- 出版时间：August, 2012
- 卷：81
- 期：8
- 页码：1244-1248
- 文件大小：532 K
摘要
Cotton is one of the most popular natural fibres, composed mainly of cellulose, which finds a wide range of applications in paper, textile and health care products industry. Researchers have focused their interest on the synthesis of cotton nanocomposites, which enhances its mechanical, thermal and antimicrobial properties by the incorporation of various nanoparticles into the cotton matrix. Silver is one of the most popular antimicrobial agents with a wide spectrum of antibacterial and antifungal activity that results from a complex mechanism of its interactions with the cells of harmful microorganism. In this work, electron beam radiation was applied to synthesise silver nanostructures in cotton fibres. Investigations of the influence of the initial silver salt concentration on the size and distribution of the obtained silver nanostructures were carried out. A detailed characterisation of these nanocomposites with SEM-BSE and EDS methods was performed. TGA and DSC analyses were performed to assess the influence of different size silver nanoparticles and the effect of electron beam irradiation on the thermal properties of cotton fibres. A microbiological investigation to determine the antibacterial activity of Ag-cotton nanocomposites was carried out.