| 초록 |
Chitosan/poly(ethylene glycol) (PEG) interpenetrating networks were prepared using solution casting technique. Natural and nontoxic cross-linking agent, genipin, was used to crosslink the chitosan. Morphology and crosslinking of chitosan/PEG blends were investigated depending on the composition with SEM and FTIR, respectively. Chitosan/PEG IPN with 80/20 blend ratio showed the most satisfactory mechanical properties for the antibacterial films. The surface properties of chitosan/PEG IPN films were also examined by contact angle. Chitosan/PEG IPN films became more hydrophilic with increasing the content of PEG. The antimicrobial properties of chitosan/PEG IPN films were evaluated against Escherichia coli. Chitosan contributed a large share to the antimicrobial properties of chitosan/PEG IPN films. |
