Abstract
This paper presents the performance of the modified nanoporous polyethersulfone (PES) membrane for dialysis system in terms of long term diffusion capability of low molecule ions and blood compatibility (platelets adhesion). Surface modification on PES membrane by parylene film has significantly reduced the number of platelet adhered to the membrane surface after long term diffusion test (0-28 days), without degrading the diffusivity performance of the membranes. After 28 days, the diffusivity PES membrane was decreasing, whilst, the PES membranes coated by parylene have shown the consistent diffusion coefficient value. In addition, the membrane coated by parylene has less platelet adhered on its surfaces, showing the improvement of bio compatibility and blood compatibility of the coated membrane. The results indicated that our modified PES membrane has a potential use for application in hemodialysis system.
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