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Tagged : american-chemical-society

‘Dry water’ may be a useful tool in the global warming fight

August 25th, 2010

The possible next big thing in the battle against climate change sounds like something straight out of science fiction. “Dry water” may be an effective new way to absorb and store carbon dioxide, the major greenhouse gas that contributes to global warming. That was the finding of a group of scientists at the 240th National Meeting of the American Chemical Society, who added that the substance might also be a greener way to produce hundreds of consumer products and even store and transport potentially harmful industrial materials.

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Self-cleaning panels may help maximize solar potential

August 25th, 2010

Solar power may be emerging as a legitimate source of energy, but as always, the devil is in the details. Sure, it’s great to have an area the size of 50 football fields gathering up the sun’s rays…but who’s going to keep all those panels dirt and dust-free and optimizing their potential? In a report at the 240th National Meeting of the American Chemical Society, a group of scientists presented a possible solution: Self-dusting solar panels, based on technology developed for missions to Mars.

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Studies show nanoparticles used in sunscreens and makeup can harm the environment

March 26th, 2009

By Barbara Kessler
Green Right Now

Nanoparticles used in sunscreens and cosmetics may be harmful to the environment, according to U.S. scientists who have been studying the effects of nanos on living organisms.

Two separate studies, by researchers at the University of Toledo and at Utah State University and the University of Utah, found that the nanoparticles had powerful harmful effects on bacteria and a certain type of beneficial soil microbes.

The findings, released this week, were reported at the national meeting of the American Chemical Society in Salt Lake City. They are likely to fuel debate over the safe use of nanoparticles and concerns that consumers lack important information about the nano-engineering behind hundreds of personal care products already on the market.

“We have no assurance that they’re effective and we have no assurance that they’re safe either,” said Ian Illuminato, an advocate with Friends of the Earth, which wants the U.S. to require disclosure on products using nanoparticles.

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Bleached blondes may soon have a gentler, greener option

March 26th, 2009

By Harriet Blake

The world’s first “green” hair bleach may sound like a product for the Wicked Witch, but in reality it’s an environmentally friendly way to lighten hair, not just on the head but other parts of the body as well.

In search of a better and milder bleaching agent, Kenzo Koike, Ph.D., and other scientists, have come up with a “green” hair bleach based on an enzyme from a fungus called Basidiomycete ceriporiopsis that has been used to clean up pollutants in soil. It naturally degrades melanin and has the added benefit of fighting the effects of free radicals (responsible for making hair brittle and dull).

Koike made the announcement about the discovery Tuesday at the National Meeting of the American Chemical Society in Salt Lake City. The Japanese scientist, who is with the Kao Corporation’s Beauty Research center in Tokyo, says his studies have focused on bleaching, not dyeing, hair.

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Stella Veterans Memorial

The village of Stella, Missouri, has constructed a veterans’ memorial of attractive design in the center of the village. Read more

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