초록 |
Ar+ ions with an energy level of 100 keV were implanted on the surface of a poly(ethylene terephthalate) (PET) film under O2 atmosphere. The surface chemical characteristic, wettability, and cell adhesion were observed by using attenuated total reflectance Fourier transform infrared spectroscopy, water contact angle measurement, and cell culture test. The results revealed that functional groups such as hydroxyl and carboxylic acid were generated by ion implantation and the contact angle was reduced at an ion fluence of 1 x 1014 ions/cm2 above which it was increased up to 1 x 1016 ions/cm2. The cells were adhered well to the ion-implanted regions of the PET film surface. |