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

In this work, nanocomposites comprising copper nanoparticle in cellulose acetate (ca) matrices have been prepared. in this manner, copper nanoparticles prepared by its salt reduced by sodium borohydride at various concentration. then this nanoparticle solution was mixed with polymer solution and electrospun by electrospinning device. the above nanocomposite has been successfully detected by sem, edax, ft-ir and uv-vis spectroscopy and indicated that not only nanocopper and cellulose nanofiberhave created good chemical interaction but also a relatively suitable size and distribution has been yielded in the fibers. the resulted nanocomposite conductivity by four-probe method showed a remarkable conductivity produced by nanocopper distribution in the tissue of nanocomposites increasing as concentration rises. in addition, it has been realized that the above nanocomposites have good antibacterial properties against staphylococcus aureus (grampositive) and also escherichia coli and klebsiellapneumonia (gram-negative) bacteria.