Traditional mechanical grippers, which operate based on mechanical forces, often encounter difficulties when attempting to safely grasp objects that are fragile, irregularly shaped, or have small contact areas. Liquid metal, with its unique fluidity and reversible phase transition properties, presents a novel approach for achieving low-damage, adaptive grasping. By conforming to the target surface and undergoing liquid-solid phase transitions, it enables reversible adhesion and release. Nevertheless, current liquid metal grippers are hindered by several challenges, including unstable phase transition control, limited wetting capabilities on complex surfaces, and difficulties in precisely controlling droplet motion. These issues impede their widespread adoption in automated robotic end-effectors.
