N. Uddin Ahamad, F. Sanjida
Shahjalal University of Science and Technology, Sylhet-3114, Bangladesh,
Bangladesh
Keywords: nano-cellulose, silver nanoparticles, cellulose-silver nanocomposite, nano-cellulose matrix, antibacterial property, hygienic textiles
Summary:
In this research work, we designed different parameters for effective deposition of silver nanoparticles in nanocellulose and prepared cellulose-silver nanocomposite by impregnating silver nanoparticles into nano-cellulose fiber. Prior to deposition, cellulose was extracted from rice straw, the most available, inexpensive, and biocompatible raw material of our country, by pre-treating it with alkaline and acid solutions successively, which was further characterized by FT-IR spectroscopy. The silver nanoparticles (Ag-NPs) are distributed and stabilized due to the larger surface area provided by nano-cellulose matrix allowing for sustained release of sliver ions (Ag+), which affects long-term antibacterial activity. A colloidal solution of silver nanoparticles was synthesized by the chemical reduction method where the homogenous distribution of monodispersed silver nanoparticles in the nano-cellulose matrix is controlled by redox reaction method. Relevant properties of synthesized cellulose-silver nanocomposite