Antibacterial properties of silver nanoparticles depositions on cellulose nanofibers surfaces using reducing agents

Abstract

Polymer cellulose nanofibers have been heavely utilized in the biomedical industry in order to create and produce artificial tissue, bio-sensing devices and biocompatible wearable materials. Because cellulose itself presents important characteristics for medical applications along the lines of biodegradability and biocompatibility (i.e. it makes an ideal component for temporary anchorage devices and mini-implants fixed to bones) and due to the fact that the cellulose does not natively presents antibacterial properties, an antibacterial cellulose based nanocomposite was conceived by depositions of silver nanoparticles (AgNPs) on cellulose nanofibers. In order to examine the properties of the newly created nanomaterial a scanning electron microscope and a X-ray diffraction detector were used. The examinations have been conducted in regards to confirm that the spectra of the resultant nanocomposite presents strong broad similarities to silver compounds being known to have strong antibacterial characteristics. The antibacterial test of the composite was confirmed using tests against the Gram-negative bacteria (E.Coli) and as well Gram-positive bacteria (S. aureus). The samples have shown bactericidal activities and bacterial inhibition efficiencies. Silver nanoparticles on cellulose nanofibers display distinguished antibacterial features for the purpose of medical applications among others utilizations. In this study we present the bacterial growth inhibition properties of cellulose nanofibers silver nanoparticles nanocomposite.