Researchers at Tufts University have developed a biomimetic coating that changes color when struck, revealing both the location and approximate strength of an impact without needing embedded electronics. Built using silk-protein shells, the material points to a practical new class of low-cost sensing surfaces for helmets, footwear, ropes, cables, vehicles, packaging, and other equipment.
What makes this especially interesting is how immediate the use case is: instead of adding sensors, power, and wiring, the coating itself becomes the recorder of mechanical stress. That gives it plausible applications in logistics, safety gear, medical analysis, and industrial monitoring, where simple impact detection can be more useful than a more complex electronic system.
https://techxplore.com/news/2026-04-revealing-strength-impact.html
