Wearing sunscreen is important to protect your skin from the harmful effects of UV radiation but doesn't cool people off.
American Chemical SocietyDec 19 2024 Wearing sunscreen is important to protect your skin from the harmful effects of UV radiation but doesn't cool people off. However, a new formula, described in ACS' Nano Letters, protects against both UV light and heat from the sun using radiative cooling. The prototype sunblock kept human skin up to 11 degrees Fahrenheit cooler than bare skin, or around 6 F cooler than existing sunscreens.
Radiative cooling involves either reflecting or radiating heat away from something, cooling whatever's underneath. It is already used to create cooling fabrics and coatings that could both cool and heat homes, among other applications. Some passive radiative cooling technologies rely on an ingredient called titanium dioxide because the whitish substance reflects heat.
The team created their sunblock by combining six ingredients: TiO2 nanoparticles, water, ethanol, moisturizing cream, pigments, and a common silicone polymer used in cosmetics called polydimethylsiloxane. By carefully adjusting the sizes of the TiO2 nanoparticles, they produced a material that reflects both UV light and solar heat, imparting the cooling ability.
Related StoriesIn tests on people in a hot and humid outdoor environment, the new radiative cooling sunscreen was found to keep the participants' skin up to 10.8 F cooler than bare skin, and up to 11.0 F cooler than commercially available sunscreens. The formulation is inexpensive, costing only $0.92 for 10 grams of the mixture -; on par with sunblocks already on the market.
United Kingdom Latest News, United Kingdom Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Below Deck Down Under Star Jason Chambers Diagnosed With MelanomaReality TV star and ship captain Jason Chambers revealed on Instagram that he has been diagnosed with melanoma, a type of skin cancer. Chambers, 52, admitted to years of forgoing sunscreen, despite spending much of his life in the sun. He encourages his followers to practice sun safety measures, including wearing sunscreen, seeking shade, and covering up.
Read more »
Santa Claus Fined £150 for Wearing Beard in RussiaA Russian court fined a local activist £150 for wearing a Santa Claus costume, claiming it obscured his identity. The activist, Leonid Larichev, was campaigning for mayor when he was stopped by police.
Read more »
Shoppers rush for safety as Rangers fans wearing balaclavas and Santa hats charge police cordon with...Rangers fans disguising their identity wearing blue balaclavas and Santa hats ran riot through the streets of Glasgow on Sunday afternoon ahead of the Old Firm derby in the League Cup final.
Read more »
Shoppers rush for safety as Rangers fans wearing balaclavas and Santa hats charge police cordon with...Rangers fans disguising their identity wearing blue balaclavas and Santa hats ran riot through the streets of Glasgow on Sunday afternoon ahead of the Old Firm derby in the League Cup final.
Read more »
Shoppers rush for safety as Rangers fans wearing balaclavas and Santa hats charge police cordon with...Scotland's First Minister John Swinney brands Old Firm disorder 'completely and utterly unacceptable' as yet more violence tarnished the clash between Glasgow sides Celtic and Rangers.
Read more »
Uniqlo's 'lightweight' coat shoppers say is like 'wearing a warm cloud'Uniqlo's Ultra Light Down Long Coat has been designed to keep you warm and stylish all winter long. Here's what you need to know about the popular winter coat
Read more »