Fig. 1From: Direct electrophoretic microRNA preparation from clinical samples using nanofilter membraneDirect electrophoretic nucleic acid preparation schematics. a A model image of the electrophoretic nucleic acid preparation system. This image is not in scale. b A photograph of the assembled direct preparation cell, with serum and TE buffer inserted in the reservoir chamber (left chamber) and the collection chamber (right chamber) eachBack to article page