Eli nqaku linika ingxelo yokusetyenziswa koxinzelelo lwe-atmospheric ye-plasma processing ukukhuthaza ukufakwa kweekhemikhali ze-poly(ethylene glycol) i-methyl ether methacrylate (PEGMA) kwi-polystyrene (PS) kunye ne-poly(methyl methacrylate) (PMMA) kwindawo ngeenjongo zokufumana ukuhambelana kwe-adlayer ethi iyaxhathisa kwiprotein adsorption.Unyango lwe-plasma lwenziwa kusetyenziswa i-dielectric barrier discharge (DBD) i-reactor kunye ne-PEGMA yobunzima be-molecular (MW) 1000 kunye ne-2000, i-PEGMA (1000) kunye ne-PEGMA (2000), ixhunyelelwa kwinkqubo yamanyathelo amabini: (1) amaqela asebenzayo. ziveliswa kumphezulu wepolymer zilandelwa (2) ziimpendulo zokongezwa okukhulu kunye ne-PEGMA.Ikhemistri engaphezulu, ukuhambelana, kunye netopography yeziphumo ze-PEGMA ezihlonyelweyo ziphawulwe nge-X-ray photoelectron spectroscopy (XPS), ixesha lokubhabha i-ion mass spectrometry (ToF-SIMS), kunye ne-atomic force microscopy (AFM), ngokulandelelanayo. .Awona maleko ahlonyelweyo we-PEGMA ahlonyelwe kwi-2000 MW ye-PEGMA macromolecule, i-DBD esetyenzisiweyo kwidosi yamandla eyi-105.0 J/cm(2) njengoko kubonisiwe yimifanekiso ye-ToF-SIMS.Isiphumo se-chemisorbed PEGMA umaleko kwi-protein adsorption yavavanywa ngokuvavanya impendulo yomphezulu kwi-albumin ye-bovine serum (BSA) kusetyenziswa i-XPS.I-BSA isetyenziswe njengeprotheyini yomzekelo ukumisela i-macromolecular conformation efakwe kwi-PEGMA layer.Ngelixa umphezulu we-PEGMA(1000) ubonise iprotein adsorption, imiphezulu ye-PEGMA(2000) ibonakale ingafunxa isixa esinokulinganiswa seprotheyini, iqinisekisa owona mphezulu ulungelelwaniso lwendawo engangcoliswanga.
