Anovelantibacterialmaterial(L-PET)waspreparedbyimmobilizingε-polylysineonpolyethyleneterephthalate(PET)nonwovenfabrics.SurfacemodificationsofthefabricwereperformedbyusingachemicalmodificationprocedurewherecarboxylgroupswerepreparedonthePETsurface,acouplingagentwasgrafted,andtheε-polylysinewasimmobilized.Scanningelectronmicroscopy(SEM)wasusedtoanalyzethesurfacemorphologyofthefabrics,whilethetoluidinebluemethodandX-rayphotoelectronspectroscopy(XPS)wereusedtoevaluatethegraftingdensities.TheantibacterialactivitiesoftheL-PETwereinvestigatedbyusingtheshaking-flaskmethod.TheelectronmicrographsshowedthatthesurfaceoftheblankPETandthemodifiedfabricsdidnotchange.TheresultsofXPSanalysisconfirmedthatε-polylysinewassuccessfullygraftedontothesurfaceofPET.TheresultsoftheantibacterialexperimentsshowedthatL-PETfabricshadexcellentantibacterialactivityagainstEscherichiacoliandStaphylococcusaureus,andthatL-PETfabricswerestableinstorageforatleasttwoyears.
