Tsab ntawv xov xwm no qhia txog kev siv cov txheej txheem atmospheric siab plasma ua rau induce chemical grafting ntawm poly (ethylene glycol) methyl ether methacrylate (PEGMA) mus rau polystyrene (PS) thiab poly (methyl methacrylate) (PMMA) nto nrog lub hom phiaj ntawm kev ua tiav cov txheej txheem uas yog resistant rau protein adsorption.Kev kho ntshav plasma yog ua los ntawm kev siv lub dielectric barrier discharge (DBD) reactor nrog PEGMA ntawm molecular luj (MW) 1000 thiab 2000, PEGMA (1000) thiab PEGMA (2000), raug grafted nyob rau hauv ob kauj ruam txheej txheem: (1) reactive pawg. yog tsim nyob rau hauv lub polymer nto ua raws li los ntawm (2) radical ntxiv tshuaj tiv thaiv nrog lub PEGMA.Qhov chaw chemistry, coherency, thiab topography ntawm qhov tshwm sim ntawm PEGMA grafted nto yog tus cwj pwm los ntawm X-ray photoelectron spectroscopy (XPS), lub sij hawm-ntawm-flight secondary ion mass spectrometry (ToF-SIMS), thiab atomic force microscopy (AFM), feem. .Qhov feem ntau coherently grafted PEGMA cov khaubncaws sab nraud povtseg tau pom rau 2000 MW PEGMA macromolecule, DBD ua tiav ntawm lub zog koob ntawm 105.0 J / cm (2) raws li qhia los ntawm ToF-SIMS cov duab.Cov nyhuv ntawm chemisorbed PEGMA txheej ntawm cov protein adsorption tau soj ntsuam los ntawm kev ntsuam xyuas cov lus teb rau bovine serum albumin (BSA) siv XPS.BSA tau siv los ua cov qauv protein los txiav txim siab grafted macromolecular conformation ntawm PEGMA txheej.Thaum PEGMA (1000) qhov chaw pom tau tias muaj qee cov protein adsorption, PEGMA (2000) qhov chaw tau tshwm sim kom nqus tsis tau cov protein ntau, lees paub qhov zoo tshaj plaws ntawm qhov sib haum xeeb rau qhov chaw tsis muaj fouling.
