Abstract
The dynamic electromechanical control of spatial structures of biomolecules in aqueous solutions was demonstrated using a nano virtual cathode display. By generating a focused electric field around the biomolecules using an electron beam (EB), the molecules' spatiotemporal responses to the electrical stimuli, such as globule transition of DNA random coils and deformation of planar lipid bilayers and vesicles, were successfully observed. The proposed system may be applied to high resolution and high degree-of-freedom manipulations to measure the mechanical and structural properties of bio-nanomaterials.
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