Zebras inspired scientists to create an electric generator to power mini-tools

It turns out that zebra stripes are not as simple as they seem. They not only hide from predators, but also perform the function of thermoregulation.

More recently, it has been found that zebras can lift their fur over black thermoregulatory strips to remove excess heat. Such a surprising feature of artiodactyls inspired scientists to create an unusual electric generator, writes New Atlas.

Researchers at the Gwangju Institute of Science and Technology in South Korea decided to use these contrasting hues as heat conductors to generate electricity. Scientists have developed a flexible, biodegradable fiber-type thermoelectric generator (TEG) that can generate electricity when exposed to sunlight due to the temperature difference between the shades.

This effect is called the thermoelectric effect. However, most of the materials available for this have low efficiency or require high temperatures. That’s why scientists decided to replicate a zebra’s skin and use special materials to replicate its structure and abilities. They took one from carbon nanotubes (CNT) and the other from a CNT-doped polymer. The layers are connected by metal electrodes. When the material is applied to human or animal skin, it adapts to its shape and movement.

Scientists have found that the material can generate 4 microwatts per square centimeter at a temperature difference of 5°C between the black and white stripes. This is enough to power some low energy devices such as sensors or LEDs.

Most importantly, if such an improvement is brought to clothes, then due to its own movement a person will be able to charge mini-gadgets. When the material is stretched or compressed, it changes its resistance and induction, causing an alternating voltage between the electrodes.

The scientists hope their material could be used to create new types of clothing or accessories that would generate energy from the environment or the wearer himself.

Previously Focus He wrote that scientists have created a “red substance”: it will change the whole working principle of batteries.

Source: Focus

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