Microwave CO2 plasma-initiated vapour phase graft polymerization of acrylic acid onto polytetrafluoroethylene for immobilization of human thrombomodulin.
The functionalization of polytetrafluoroethylene (PTFE) for human thrombomodulin (hTM) binding has been achieved by CO2 plasma activation and subsequent vapour phase graft polymerization of acrylic acid (AA). The PTFE surfaces after CO2 plasma treatment, AA grafting and hTM immobilization were characterized by attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and electron spin resonance (ESR) spectroscopy, as well as by zeta potential and wetting measurements to quantitatively control each step of modification. The activity of immobilized hTM was estimated by the protein C activation test.
Vasilets
V N
VN
Institute for Energy Problems of Chemical Physics, Chernogolovka, Russia.
Hermel
G
G
König
U
U
Werner
C
C
Müller
M
M
Simon
F
F
Grundke
K
K
Ikada
Y
Y
Jacobasch
H J
HJ
D000179:Acrylates / Q000737:chemistry* / Q000528:radiation effects; D001672:Biocompatible Materials / Q000737:chemistry* / Q000378:metabolism; D002245:Carbon Dioxide / Q000737:chemistry; D004578:Electron Spin Resonance Spectroscopy; D006801:Humans; D008872:Microwaves; D011108:Polymers; D011138:Polytetrafluoroethylene / Q000737:chemistry* / Q000528:radiation effects; D011486:Protein C / Q000378:metabolism; D013052:Spectrometry, X-Ray Emission; D017550:Spectroscopy, Fourier Transform Infrared; D018180:Thrombomodulin / Q000378:metabolism*; D014014:Tissue Adhesives / Q000737:chemistry*
D000179:Acrylates; D001672:Biocompatible Materials; D011108:Polymers; D011486:Protein C; D018180:Thrombomodulin; D014014:Tissue Adhesives; D002245:Carbon Dioxide; D011138:Polytetrafluoroethylene; C036658:acrylic acid