Archive: https://archive.today/SGbUG From the post: >>The proposed metamaterial-based tactile sensing technology is expected to revolutionize the design of wearable devices and health monitoring. Credit: Dr. Soonjae Pyo / SeoulTech Tactile sensors are widely used in robotics, prosthetics, wearable devices, and health care monitoring. These devices detect and convert external stimuli such as pressure and force into electrical signals, facilitating effective environmental detection. Scientists have made extensive efforts to improve the performance of tactile sensors in terms of sensing range and sensitivity. In this context, mechanical metamaterials are highly promising. Specifically, auxetic mechanical metamaterials (AMMs)—possessing a negative Poisson's ratio—enable inward contraction and localized strain concentration upon compression. These counterintuitive behaviors render them lucrative options for designing sensors and actuators with excellent properties.