Tips to safely watch the total solar eclipse

On April 8, North America will experience a total solar eclipse, stretching across parts of Mexico, the U.S. and Canada, with approximately 31.6 million people living in the path of totality. According to NASA, every contiguous ...

For perfect nano-crystals, just add water

A simplified technique to fabricate nano-crystals of cerium dioxide (CeO2), which have wide-ranging technological and industrial applications, has been "unexpectedly" demonstrated by a UNSW chemist.

No nanoparticle risks found in field tests of spray sunscreens

People can continue using mineral-based aerosol sunscreens without fear of exposure to dangerous levels of nanoparticles or other respirable particulates, according to Penn State research published in the journal Aerosol ...

Titanium dioxide nanoreactor

Tiny particles of titanium dioxide are found as key ingredients in wall paints, sunscreens, and toothpaste; they act as reflectors of light or as abrasives. However with decreasing particle size and a corresponding change ...

A beach lover's dream: A step toward long-lasting sunscreen

In a perfect world, people would diligently reapply suncreen every couple of hours to protect their delicate skin from damaging solar radiation. But in reality, few people actually adhere to reapplication guidelines, and ...

Sunscreens release metals and nutrients into seawater

Beachgoers are becoming increasingly aware of the potentially harmful effects UV filters from sunscreens can have on coral and other marine organisms when the protective lotions wash off their bodies into the ocean. Now, ...

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