Antibacterial Activity and Conductivity Properties of Nanocomposites based on Cellulose Acetate Nanofibers and Copper Nanoparticles

Abstract

in this work, nanocomposites comprising copper nanoparticle in cellulose acetate (CA)<br />matrices have been prepared. In this manner, Copper nanoparticles prepared by its salt<br />reduced by sodium borohydride at various concentration. Then this nanoparticle solution was<br />mixed with polymer solution and electrospun by electrospinning device. The above<br />nanocomposite has been successfully detected by SEM, EDAX, FT-IR and UV-Vis<br />Spectroscopy and indicated that not only nanocopper and cellulose nanofiberhave created<br />good chemical interaction but also a relatively suitable size and distribution has been yielded<br />in the fibers. The resulted nanocomposite conductivity by four-probe method showed a<br />remarkable conductivity produced by nanocopper distribution in the tissue of nanocomposites<br />increasing as concentration rises. In addition, it has been realized that the above<br />nanocomposites have good antibacterial properties against Staphylococcus aureus (grampositive)<br />and also Escherichia Coli and Klebsiellapneumonia (gram-negative) bacteria.<br /><br />