Researchers from South Korea, based at Kyungpook National University and Dong-A University, have developed a breakthrough robotic handling technique, drawing inspiration from the unique adhesive properties of gecko feet. Published in the “Science and Technology of Advanced Materials,” an international science journal, their research could revolutionize robotic systems’ transfer of delicate objects.
Geckos’ ability to climb walls is attributed to their feet coated with tiny, protein-based hairs. These hairs create a van der Waals force, a subtle molecular attraction, strong enough to support the gecko’s weight. This biological mechanism has been adapted into a soft robotic device using a dry adhesive, mimicking the gecko’s foot structure.
The key innovation lies in overcoming the challenge of detaching the adhesive without damaging fragile materials. The team achieved this by introducing a vacuum-powered device made of soft silicon rubber, capable of a twisting and lifting motion. This motion significantly reduces the force required for detachment, ensuring the safe handling of sensitive materials like glass.
During tests, the robotic arm successfully lifted and relocated a delicate glass disc without any damage, demonstrating the practicality of this method. The researchers are optimistic about the industrial application of their findings, especially in robotics, where temporary attachment and movement of components are crucial. This research showcases the potential for bio-inspired technology in robotics and promises to bridge the gap between academic research and real-world industrial applications.
Please visit https://www.tandfonline.com/doi/full/10.1080/14686996.2023.2274818 for more details.
