Science
Tech
In a groundbreaking leap that could redefine the future of robotics, scientists have successfully created biohybrid robots by combining electronic components with living fungi. This innovative approach marks a significant departure from traditional biohybrid robots, which typically rely on animal cells that are challenging to maintain. The new robots harness the remarkable resilience and capabilities of fungi, specifically the king oyster mushroom (Pleurotus eryngii), to create machines that are both sustainable and robust.
The Power of Fungi
Fungi, with their extensive networks of mycelia, offer a unique advantage. These branching structures not only allow mushrooms to communicate and sense their environment but also generate electrical signals similar to those produced by neurons in the human brain. By leveraging this natural ability, researchers have been able to integrate fungal mycelia into electronic systems, creating a new generation of biohybrid robots.
Crafting the Biohybrid Robots
To build these living machines, scientists cultured mycelia from the king oyster mushroom onto electrodes within a 3D-printed scaffold. This setup was then connected to a computer interface, enabling the conversion of electrical impulses from the fungi into digital commands. The result was two distinct robots: a soft, starfish-shaped walking robot and a hard robot equipped with wheels.
Light-Activated Movement
Both robots were controlled using ultraviolet light, which stimulated the mycelium to produce electrical signals. These signals directed the robots to move at varying speeds, demonstrating the potential for precise control over their movements. This technology, as reported in Science Robotics, paves the way for developing sturdy, sustainable robots capable of operating in harsh environments.
Future Implications
Experts believe that these biohybrid robots could be deployed not only in challenging terrestrial environments but also on extraterrestrial missions. The use of fungi offers a sustainable alternative to traditional robotics, as it reduces reliance on synthetic materials and energy-intensive manufacturing processes. This breakthrough could usher in an era where robots are not just efficient but also environmentally friendly, opening new possibilities for exploration and innovation.
Source:
Phie Jacobs, Science Magazine https://www.science.org/content/article/robot-part-fungus-part-machine
Image Credit: Robert Shepherd