This is progress achieved via advanced chemistry towards more complex molecular machinery.
A pair of light activated molecular pliers has been joined to a pair molecular flippersThe result is the first example of one molecular machine controllably driving the action of another, say the researchers. “The next step is to integrate multiple molecular machines" into much bigger devices, says Kazushi Kinbara, who developed the tiny contraption with colleagues at the University of Tokyo, Japan. “That project is now in progress.”
A related advance was already highlighted on this site. Molecular motor rotates object 10000 times its size