Hong Kong researchers discover use of sea urchin spines for mechanoelectrical perception
In Hong Kong, a research team led by City University of Hong Kong (CityUHK) has discovered for the first time that the naturally occurring porous ceramic structure within sea urchin spines possesses an unexpected capability for mechanoelectrical perception.
The team revealed that when water droplets or flowing water passes over the spine’s surface, its gradient cellular structure instantaneously generates measurable voltage signals. The response speed is remarkably efficient — more than a thousand times faster than echinoderm visual perception. Inspired by this natural architecture, the team combined biomimetic structural design with advanced 3D printing technology to replicate and enhance this capability, opening new avenues for next-generation smart sensing and underwater monitoring materials.
Category: Research
