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| Titel: |
Biocompatibility of Polysulfone I. Surface Modifications and Characterizations |
| Auteur: |
Khang, Gilson Lee, Hai Bang Park, Joon B. |
| Verschenen in: |
Bio-medical materials and engineering |
| Paginering: | Jaargang 5 (2012) nr. 4 pagina's 245-258 |
| Jaar: |
2012-02-08 |
| Inhoud: |
Surface treatments by nonionic surfactant (Brij®) coating and air-plasma glow discharge treatment onto polysulfone have been investigated to improve its surface properties. Surface treated samples were characterized by measurement of contact angle by a goniometer, Fourier transform infrared spectroscopy in the attenuated total reflectance mode (FTIR-ATR), and electron spectroscopy for chemical analysis (ESCA). The contact angles of the nonionic surfactant coated films decreased from 66.6 ± 2.1° to nearly 0° due to hydrophilic polyethylene oxide (PEO) chain segment of the nonionic surfactant, and those of air-plasma treated films also decreased from 66.6° to about 22° with a treatment time of less than 5 s. ESCA analysis of air-plasma treated films indicates the incorporation of oxygen molecules onto polysulfone surface lowers the water contact angle. These modified techniques can be used to prevent platelet adhesion onto polysulfone surfaces. |
| Uitgever: |
IOS Press |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 1 van 1 gevonden artikelen