简介:Thesurfaceofpolypropylene(PP)membranewasmodifiedbylowtemperatureplasmawithammonia.Theeffectofexposuretimewasinvestigatedbymeansofcontactanglemeasurement.Theresultsshowthatlowtemperatureammoniaplcsmatreatmentcanenhanceitshydrophilicity.Chinesehamsterovary(CHO)cellsattachmentonthemodifiedmembranewasenhancedandthegrowthrateonthemembranewasfasterthanunmodifiedone.