Scientists at the University of Maryland have developed 3D printing fibers that provide cooling power, which can lead to the development of individual cooling devices without any external energy. Making clothes can cool us down even harder because such efforts have led to materials with bulky components that require a lot of energy.

Such materials are also expensive. However, new material can be invented for clothing as a personal cooling unit without the need for any external energy to power it. The study was published in the ACS Nano journal.

The air-conditioned buildings bring comfort to people from the hot outdoors, but creating such comfort increases the electricity bill and increases greenhouse gas emissions.

Functional clothes have become standard in recent years. Shoe suits and anti-odor hats, shirts and clothing are coated with UV-blocking chemicals. But clothing that helps cool the body is harder to study. Such efforts have led to large, bulky, or expensive materials.

Hu Liangbing Hu and colleagues at the University of Maryland Colledge Park want to see if they can make a more realistic choice.

The researchers combined Bo nitrate, a heat-transferring material - and Polyvinyl Alcohol to create nanocomposite fibers that can be printed 3D and woven into fabric. A test to simulate the material on the skin showed that the composite was 1.5-2 times more effective in removing the heat from the body when compared, in turn, to polyvinyl alcohol or cotton.

Making clothes from fear of nanocomposite can help the wearer feel comfortable and reduce the need for cooling the entire building.

According to Vinatex