Canadian researchers from the University of Waterloo have announced the development of an innovative smart fabric capable of converting sunlight into heat. This unique material can become the basis for creating clothes that will provide warmth and comfort in extremely low temperatures.

The basis of the development are photothermally active nanoparticles of polydopamine and polyaniline, which have a high efficiency of converting light into heat. A complex of dyes that change color when heated is also added to the fabric, which allows visual tracking of temperature changes.

During the tests, the fabric sample showed impressive results: when exposed to solar radiation with a power of 600 watts per square meter, it heated from room temperature to 53.5 degrees Celsius in just 10 minutes. At the same time, the color of the material changed from red to white, signaling an increase in temperature. After cooling, the fabric returned to its original color.

In addition, the developed material is characterized by high elasticity and durability, withstanding stretching up to 500% and retaining its thermal properties even after 25 cycles of washing. However, it is worth noting that the effectiveness of this “smart” depends on the presence of sunlight. During dark hours or in rooms without access to the sun, the material will not be able to fulfill its heating function.

The next step in research will be to optimize production, reduce the cost of the material and verify its safety for human health