German chemists collected DNA nanoscale "tower crane" from chains of DNA, the "arrow" of which can quickly rotate and move small loads.
From DNA, you can do many different things: scientists have already learned to fold it in the form of a donut, make bear figures from a double helix, and even a copy of the "Mona Lisa" - all less than 100 nanometers in size.
The movement of a short direct DNA fragment is controlled by a microcontroller, a system of electrodes that generates an electric field. Controlling the mechanism of DNA from electricity is a fundamentally new solution; earlier for this, chemical energy sources and regulators were used. It turned out that the electric drive works hundreds of thousands of times faster.
A DNA molecule is a polymer whose monomers are nucleotides. In a double helix, in the form of which DNA usually exists, parts of nucleotides are nitrogenous bases of parallel chains linked in pairs, and sugar-deoxyribose and phosphoric acid residues are linked together in one chain.
Electrons in the DNA molecule are distributed unevenly; this allowed scientists to assemble a nanoscale detachment in which a sleeve from a DNA molecule anchored on a movable base, rotated clockwise and counterclockwise, depending on the configuration of the external electric field.
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