![]() ![]() This design allows the direction of rotation of the turbine in our nanopores to be controlled through the handedness of the blades and allows straightforward integration of the turbine to other nanomachines.Ī new step towards active transmembrane nanomachines The "DNA origami" technique uses the specific interactions between complementary DNA base pairs to build dynamic 3D nano-objects. ![]() ![]() This unique feature, exclusive to the nanoscale realm, results from the intricate interplay between ions, water, and DNA.Ĭees Dekker, who supervised the research, sheds light on their methodology saying, "Together with our collaborators at Hendrik Dietz's lab from the Technical University of Munich, we used insights from our previous work on DNA rotary motors to now create a turbine with full control over its design and operation." Its behavior is influenced by ion concentration, allowing the same turbine to spin either clockwise or anticlockwise, depending on the concentration of Na + ions in the solution. One of the most intriguing discoveries of this research is the unique nature of the DNA origami nano-turbine's rotation. We used our turbine to drive a rigid rod up to 10 revolutions per second," says Xin Shi, lead author of the article. To operate, this structure is docked in a strong water flow, controlled by an electric field or salt concentration difference, from a nanopore, a tiny opening, in a thin membrane. "Our nanoturbine has a 25-nanometer diameter rotor made from DNA material with blades configured in a right-handed or left-handed sense to control the direction of rotation. DNA Origami nanoturbine sets new horizon for nanomotors. ![]()
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