Direct observation of <italic>λ</italic>-DNA molecule reversal movement within microfluidic channels under electric field with single molecule imaging technique

Direct observation of λ-DNA molecule reversal movement within microfluidic channels under electric field with single molecule imaging technique

Yang Fengyun¹, Wang Kaige^{1, †,}, Sun Dan¹, Zhao Wei^{1, 2}, Wang Hai-qing¹, He Xin¹, Wang Gui-ren², Bai Jin-tao¹

Reversal removing of DNA molecule in 5 μm diameter microchannel under applied electric field 5.3×10³ V/m. (a) Snap images, and (b) schematic diagram for analysis. The interval period between two adjacent pictures is 10.05 s. The red arrows stand for the moving direction of DNA molecule in the microchannel.