Title of article :
The hydrodynamic permeability and surface property of polyethersulfone ultrafiltration membranes with mussel-inspired polydopamine coatings
Author/Authors :
Chong Cheng، نويسنده , , Shuang Li، نويسنده , , Weifeng Zhao، نويسنده , , Qiang Wei، نويسنده , , Shengqiang Nie، نويسنده , , Shudong Sun a، نويسنده , , Changsheng Zhao، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
9
From page :
228
To page :
236
Abstract :
In this paper, the characters of hydrodynamic permeability, surface property, and blood compatibility of polydopamine (PDA) coated polyethersulfone (PES) ultrafiltration (UF) membranes were investigated in detail. We presented a general protocol to improve the hydrodynamic permeability and blood compatibility of PES UF membranes by a simple biomimetic strategy. The chemical structure and surface morphology of the PDA coated membranes were studied in detail; meanwhile, the influence of the coated PDA nano-layer on water contact angle and water flux of the modified membranes was investigated. It was found that the water flux of the pure PES membrane decreased dramatically, approach to 0 ml/(m2 h mmHg), after a few hours of PDA coating. To avoid the dramatic decline of water flux, the method of pre-adding pore-forming reagent was taken to fabricate the PDA coated PES membranes with tunable water flux. Moreover, the anti-fouling property, platelet adhesion, and blood coagulation time of the PDA modified PES membranes were studied, and the results indicated that the PDA modified PES UF membranes showed enhanced blood compatibility.
Keywords :
Polydopamine coating , PES ultrafiltration membrane , Surface property , Water flux , Blood compatibility
Journal title :
Journal of Membrane Science
Serial Year :
2012
Journal title :
Journal of Membrane Science
Record number :
1359203
Link To Document :
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