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Korean researchers create artificial “skin” like chameleons

Seoul — South Korean researchers say they have developed artificial skin-like materials inspired by natural biology. It allows you to quickly adjust the hue to suit your surroundings, like a chameleon.

A team led by Ko Sung-hwan, a professor of mechanical engineering at Seoul National University, created “skin” with a special changing ink. colour It is temperature based and controlled by a small and flexible heater.

“Wearing a forest camouflage uniform in the desert can easily be exposed,” Ko told Reuters. “The key to our camouflage technology is to actively change colors and patterns according to the surrounding conditions.”

Ko and his team demonstrated the technology of a multi-layer silver nanowire heater stacked vertically with thermochromic liquid crystal (TLC) ink using a toy with a color detection sensor. Whatever color the sensor “seen” around it, the skin tried to imitate.

In the video, the toy crawls on the red, blue, and green floors and instantly changes color to match the background.

“The color information detected by the sensor is transferred to the microprocessor and then to the silver nanowire heater. When the heater reaches a certain temperature, the color of the thermochromic liquid crystal layer changes,” Ko said. Stated.

The total thickness of soft multi-layered artificial skin is less than 100 micrometers, which is thinner than human hair. By adding layers of silver nanowires with simple shapes such as dots, lines and squares, the skin can create complex patterns.

“Soft skin has been developed as a wearable device and can be used in fashion. army For aesthetic purposes, and for future display technology, camouflage uniforms, the look of cars and buildings, “said Ko.

This study was published in Nature Communications in August.

Korean researchers create artificial “skin” like chameleons

Source link Korean researchers create artificial “skin” like chameleons

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