m Seddigh - Department of medical engineering Amirkabir university, Tehran
n Abolfathi - Department of medical engineering Amirkabir university, Tehran.

Separation of nano-particles from the fluid in microchannels has a wide application in industry and is the subject of a plenty of researches today. In the present paper, the flow of bloodplasma which contains ions and is considered as nano-particles in a micro-channel has been studied. The channel inside wall is of aporous material which consists of amino functionalized group-type one that causes the ions to separate from the blood and absorb tothe channel wall because of electrostatic interaction between blood ions and micro-channel wall material. Based on this study at firsttime, an optimum dimensions have been represented to decrease the process time and channel length

Separation, Blood ions, Micro-channel, Porous channel