Article

Researchers at the Polish Academy of Sciences have developed a wireless control method for carbon microfibers using electric pulses, detailed in Nature Communications. This technique employs a closed bipolar electrochemical cell to generate movement without physical wiring or chemical changes.

A carbon fiber, approximately 10 micrometers in diameter, is suspended in an electrolyte solution. Applying voltage causes ions to intercalate unevenly, leading to differential expansion and bending of the fiber.

This approach allows precise motion control, relevant for synthetic muscles in miniature robotics and simplified MEMS manufacturing. The research, funded by the National Science Centre Poland, involved an international team from France, India, the Czech Republic, and South Korea.