Researchers at the Technical University of Denmark (DTU) have created a new electronic material that acts like human skin. This material is flexible, tough, and can heal itself, making it useful for soft robotics, which are robots with bendable parts, and healthcare devices. Unlike current electronic materials that are hard and break easily, this new material can repair itself, offering a better option for advanced technology.
The research is described in a paper published in Advanced Science. The researchers combined graphene with a see-through polymer called PEDOT:PSS, a flexible material used in electronics like solar cell electrodes. By mixing these, they turned a weak, jelly-like substance into a solid, stretchy material that conducts electricity and heals itself. This material can stretch up to six times its original length and still return to its shape, making it ideal for wearable devices, which are electronics worn on the body, and soft robots that need to bend without breaking.
Self-healing and versatile uses
A key feature of this material is its ability to self-heal, meaning it can fix itself in seconds after being damaged, similar to how skin heals a cut. It can also sense pressure, temperature, and pH levels, which measure acidity or alkalinity, making it useful for health monitoring devices that track heart rate or body temperature. The material can control heat, ensuring it stays at the right temperature for devices like bandages that monitor wound healing or prosthetics, which are artificial limbs. Its flexibility makes it suitable for minimally invasive surgery, where small tools are used inside the body, or implants that stay in the body long-term.
The material’s ability to adapt to its environment and recover from damage mimics biological systems, like human skin. Researchers believe it could be used in space suits or healthcare devices, such as stretchable bandages or heart monitors, to improve comfort and performance. Currently, the scientists are working on producing the material on a larger scale to make it ready for real-world use. This breakthrough could lead to more advanced, body-friendly technologies that blend seamlessly with human needs and environments, opening doors to innovative healthcare and robotic solutions.