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Current-driven molecular machine boosts conductance through rotation

So: researchers have built a tiny molecular machine whose rotor is driven by electric current. By applying a voltage to a helicene molecule suspended between two electrodes, they triggered cyclic motion with a strong preference for one direction, which reverses when the voltage polarity changes. Above a threshold voltage, the rotating molecule conducts significantly more current, and stretching or compressing it can tune when this boost begins. And here's the thing: the motion lets the molecule adopt highly conducting shapes that it cannot reach while still.
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