Newly-developed nanotech sunscreen binds to your skin, but doesn't seep in

sticky sunscreen 10984970  sun lotion
Sunscreen is ideal for protecting your skin from the damaging UV rays of sunlight, but it is not perfect. The same chemicals that keep you safe from the sun also seep into your skin and enter your bloodstream. The risks of this exposure are unknown, but it is enough of concern that some people would rather burn their skin than coat their body with these chemicals. To address these concerns, Yale University dermatologist Michael Girardi is developing a new type of sunscreen that protects you from the sun while also staying on the surface of the skin, reports Scientific American.

The most commonly used sunscreen chemicals are organic molecules that pass through the skin and, according to select cell culture studies, may bind to internal hormone receptors. To prevent this absorption, Girardi used the common UV-absorbing chemical padimate 0 and coated it with a biodegradable nanoparticle polymer that sticks to the skin. The nanoparticle binds to proteins on skin cells and stays there. The resulting sunscreen isn’t absorbed, doesn’t wash off in the water, and is only removed when you wipe down with a towel.

In laboratory studies using mice, Girardi showed that the new nanoparticle sunscreen protected mice from the damaging UV light as well as padimate O by itself. Moving beyond mice, Girardi plans to test out the sunscreen on human subjects in a pilot study scheduled for this summer. The small scale study will establish the SPF of the nano-sunscreen by applying it to 25 test subjects at different concentrations.

Girardi hopes his product encourages more people to use sunscreen by minimizing their risk of chemical exposure, and his colleagues agree. “If you can minimize the risk of sunscreen entering the bloodstream, it’s probably a good thing,” said National Cancer Institute dermatologist Kenneth Kraemer to Scientific American. Kraemer isn’t involved directly in the study, but has been monitoring its progress.

Emerging Tech

Awesome Tech You Can’t Buy Yet: heat-powered watches, phone cases with reflexes

Check out our roundup of the best new crowdfunding projects and product announcements that hit the web this week. You may not be able to buy this stuff yet, but it sure is fun to gawk!
Gaming

You're never too broke to enjoy the best free-to-play games

Believe it or not, free-to-play games have evolved into engaging, enjoyable experiences. Here are a few of our favorites that you can play right now, including Warframe and the perennially-popular League of Legends.
Home Theater

The best movies on Netflix in December, from 'Buster Scruggs’ to 'Roma'

Save yourself from hours wasted scrolling through Netflix's massive library by checking out our picks for the streamer's best movies available right now, whether you're into explosive action, witty humor, or anything else.
Gaming

Still have holiday cash to blow? Grab one of these awesome Xbox One games

More than four years into its life span, Microsoft's latest console is finally coming into its own. From Cuphead to Halo 5, the best Xbox One games offer something for players of every type.
Emerging Tech

Watch China’s moon mission touch down on the planet’s far side

Video has been shared of a lander's-eye view of China's Chang'e 4 mission touching down in the Von Kármán Crater on the far side of the moon. The craft captured footage of the descent with a camera which was attached to the probe.
Emerging Tech

SpaceX nails its first launch and landing of 2019, but job cuts loom

SpaceX has nailed its first launch and landing of 2019 with a mission that deployed more satellites for Virginia-based Iridium Communications. But the success was soured somewhat by reports of upcoming job losses at the company.
Emerging Tech

The enormous ‘Flying Bum’ moves toward a commercial design

A prototype of the world's largest aircraft is being retired as the company behind it prepares to build a production model. The new Airlander 10, also known as the "Flying Bum," could be ready for commercial use by 2025.
Emerging Tech

Sick of walking everywhere? Here are the best electric skateboards you can buy

Thanks for Kickstarter and Indiegogo, electric skateboards are carving a bigger niche than you might think. Whether you're into speed, mileage, or something a bit more stylish, here are the best electric skateboards on the market.
Emerging Tech

The best 3D printers for 2019

On the hunt for a new 3D printer? We've got your back. Whether you're a beginner or a seasoned veteran, this list of the best 3D printers has what you're looking for.
Emerging Tech

Wish you could fly? You totally can with these top-of-the-line drones

In just the past few years, drones have transformed from a geeky hobbyist affair to a full-on cultural phenomenon. Here's a no-nonsense rundown of the best drones you can buy right now, no matter what kind of flying you plan to do.
Emerging Tech

Face-scanning A.I. can help doctors spot unusual genetic disorders

Facial recognition can unlock your phone. Could it also be used to identify whether a person has a rare genetic disorder, based on their facial features? New research suggests it can.
Emerging Tech

Lasers and bovine breathalyzer help determine how much methane cows produce

Cow farts and belches don't sound like catastrophic threats, but they contribute to the massive amounts of methane in the atmosphere. Recently, scientists set out to establish the numbers.
Emerging Tech

Researchers discover a way to make 3D printing 100 times faster using light

Researchers at the University of Michigan have invented a new method of 3D printing which is up to 100 times faster than conventional 3D-printing processes. Here's how it works and why it could prove a game-changer for 3D printing.
Emerging Tech

Why wait? Here are some CES 2019 gadgets you can buy right now

Companies come to CES to wow us with their cutting edge technology, but only a few products are slated to hit the market right away. Here is our list of the best CES 2019 tech you can buy right now.