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Latest ACS Nano Stories

Frank Kjeldsen
2014-02-28 08:17:46

University of Southern Denmark Endocrine disrupters are not the only worrying chemicals that ordinary consumers are exposed to in everyday life. Also nanoparticles of silver, found in e.g. dietary supplements, cosmetics and food packaging, now worry scientists. A new study from the University of Southern Denmark shows that nano-silver can penetrate our cells and cause damage. Silver has an antibacterial effect and therefore the food and cosmetic industry often coat their products with...

2013-03-18 12:21:10

Nonvolatile memory that can store data even when not powered is currently used for portable electronics such as smart phones, tablets, and laptop computers. Flash memory is a dominant technology in this field, but its slow writing and erasing speed has led to extensive research into a next-generation nonvolatile memory called Phase-Change Random Access Memory (PRAM), as PRAM's operating speed is 1,000 times faster than that of flash memory. PRAM uses reversible phase changes between the...

Image 1 - New Paint Captures Sun Light, Turns It To Energy
2011-12-22 13:07:39

[ Watch the Video ] Researchers from the University of Notre Dame have created a paint that is capable of generating electricity from sunlight. The team said that it is well on its way to developing an inexpensive paint product they have named "Sun-Believable". "By incorporating power-producing nanoparticles, called quantum dots, into a spreadable compound, we've made a one-coat solar paint that can be applied to any conductive surface without special equipment," Prashant Kamat,...

"Smart" Window Detects Changing Seasons
2011-09-28 11:20:02

South Korean scientists have developed a new "smart" window that switches from summer to winter mode. The window darkens when the outside temperature is hot and becomes transparent when it gets cold in order to help capture heat from the Sun. The researchers said their method allows for an instantaneous switch from opaque to a transparent window. "This type of light control system may provide a new option for saving on heating, cooling and lighting costs through managing the light...

2011-09-21 20:01:52

A new "smart" window system has the unprecedented ability to inexpensively change from summer to winter modes, darkening to save air conditioning costs on scorching days and returning to crystal clarity in the winter to capture free heat from the sun, scientists are reporting. Their study appears in the journal ACS Nano. Ho Sun Lim, Jeong Ho Cho, Jooyong Kim and Chang Hwan Lee point out that the drive for energy conservation has fostered efforts to develop new types of window glass for...

2010-09-14 22:21:07

A new genre of construction materials, made with particles barely 1/50,000th the width of a human hair, is about to play a big role in the building of homes, offices, bridges, and other structures, according to the latest episode in the American Chemical Society's (ACS) award-winning podcast series, "Global Challenges/Chemistry Solutions." A new Global Challenges podcast and website is highlighting both the potential benefits of these nanomaterials in improving construction materials and the...

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2010-08-25 20:17:52

TAU develops an organic LED light source for home electronics, medicine and clean energyElectronic products pollute our environment with a number of heavy metals before, during and after they're used. In the U.S. alone, an estimated 70% of heavy metals in landfill come from discarded electronics. With flat screen TVs getting bigger and cheaper every year, environmental costs continue to mount.To counter this, a new Tel Aviv University solution applies a discovery in nano-technology, based on...


Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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