Researchers from the University of Science and Technology of China have developed a method using femtosecond lasers to create tiny “dancing” humanoid microrobots with movable joints. Inspired by the flexibility of human joints, the scientists proposed a two-in-one multi-material laser writing strategy that utilizes temperature-sensitive hydrogels and metal nanoparticles.
Femtosecond lasers are pulsed lasers that have the shortest pulse width, just one quadrillionth of a second. These lasers use short, intermittent irradiation, and unlike continuous wave lasers, the material affected by the pulses is instantly removed.
The team of researchers believes that their technique has numerous potential applications. These include the development of micro sensors, artificial muscles, wearable devices, and many others. The ability to create micromachined joints using femtosecond lasers opens up possibilities for advanced robotics and miniaturized technology.
This innovative approach allows for the creation of highly flexible and precise joints in the microrobots. The hydrogels and metal nanoparticles used in the process can be controlled and manipulated using laser pulses, enabling the robots to mimic human movements. The “dancing” microrobots provide a visual representation of the incredible capabilities of this technique.
The researchers hope that their work will contribute to the advancement of micro robotics and lead to the development of more sophisticated and versatile machines. By harnessing the power of femtosecond lasers, scientists are able to create micromachined joints that bring us one step closer to achieving lifelike robotic movements.
Sources:
– University of Science and Technology of China
– Chinese Academy of Science