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In this paper, a novel large size (50x50 mm2) anodic porous alumina membrane specially used in hemodialysis process is developed. By using a two-step anodization fabrication method, a semi-permeable membrane with nano-sized pores is produced. Comparing with spongy style pores located on polymer membranes, this membrane has straight channel pores. And these pores are uniform in size. Experimental results...
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