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| Chemistry articles |
Chemists forge a new form of iron
An international team of chemists has discovered a new and unexpected form of iron, a finding that adds to the fundamental understanding of an element that is among the most abundant on Earth and that, in nature, is an essential catalyst for life
Corn waste potentially more than ethanol
After the corn harvest, whether for cattle feed or corn on the cob, farmers usually leave the stalks and stems in the field, but now, a team of Penn State researchers think corn stover can be used not only to manufacture ethanol, but to generate electricity directly
Hard data resolves decades-old mystery of how certain zeolites from
The porous, sieve-like minerals known as zeolites have been used for decades in purifiers, filters and other devices. Yet creating and refining a new type of zeolite is still a matter of sophisticated trial and error: no one has been able to figure out exactly how the crystals form, even in the laboratory.
Purdue creates simpler alternative for chemical-analysis method
Purdue University researchers have developed a relatively simple alternative to sophisticated techniques now used to ionize materials, a critical step needed for chemical analyses involving instruments called mass spectrometers.
What Can Mold Training Do For You?
If you are interested in a career in indoor air quality (IAQ) or if you are already involved in the indoor air quality field, but you would like to further your education, you are advised to consider mold training
Atomic-resolution structure of a Ribozome yields insights into RNA calatysis and the origins of life
Which came first, nucleic acids or proteins? This question is molecular biology's version of the "chicken-or-the-egg" riddle. Genes made of nucleic acids (DNA or RNA) contain the instructions for making proteins, but enzymes made of proteins are needed to replicate genes. For those who try to understand how life originated, this once seemed an intractable paradox.
Atomic-resolution structure of a Ribozome yields insights into RNA calatysis and the origins of life
Which came first, nucleic acids or proteins? This question is molecular biology's version of the "chicken-or-the-egg" riddle. Genes made of nucleic acids (DNA or RNA) contain the instructions for making proteins, but enzymes made of proteins are needed to replicate genes. For those who try to understand how life originated, this once seemed an intractable paradox.
Nickel mining
As an exceptionally versatile metal, nickel enjoys a special place in the industrial world.With its lustrous, silvery-white appearance, low thermal and electrical conductivities, high resistance to corrosion and oxidation
Research paves way for new composite materials
Northwestern University researchers have developed a process that promises to lead to the creation of a new class of composite materials -- "graphene-based materials."
Sensors could detect traces of chemicals on passengers
While it might be very difficult to detect benign chemicals that could make an explosive when mixed together, it is not nearly as difficult to detect traces of potentially dangerous chemicals on the fingers of individuals who recently have been in contact with them.
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Sugar metabolism tracked in living plant tissues, in real time
Scientists at Carnegie's Department of Plant Biology have made the first real-time observations of sugars in the cells of intact and living plant tissues. With the help of groundbreaking imaging techniques, the group has determined that plants maintain extremely low levels of sugar in their roots—as much as 100,000 times lower than previous estimates. The new technology will enable new studies of sugar metabolism in plants, which will inform the effort to engineer higher crop yields for food and biofuel production.
Uranium 'pearls' before slime
Since the discovery a little more than a decade ago of bacteria that chemically modify and neutralize toxic metals without apparent harm to themselves, scientists have wondered how on earth these microbes do it.
How proteins fold into their critical shapes
Experimental evidence provided by a Cornell researcher and colleagues at the Scripps Research Institute in La Jolla, Calif., support a long-held theory of how and where proteins fold to create their characteristic shapes and biological functions.
Fuel cell membrane materials offer solution for removing salt from water
The problem of separating salt from water has long been solved by forcing the water through a polyamide membrane in a process called reverse osmosis (RO). However, the water can't be disinfected with chlorine because it degrades polyamid material. Now, researchers at Virginia Tech have created a new polymer membrane for RO that will not be degraded by chlorine.
Study reveals nanoscale properties of explosives
Using nanometer scale analysis techniques and quantities too small to explode, researchers have mapped the temperature and length-sale factors that make energetic materials – otherwise known as explosives – behave the way they do.
New catalyst removes harmful perchlorate from groundwater
Scientists at the University of Illinois at Urbana-Champaign have developed a new chemical catalyst that uses hydrogen gas to efficiently remove and destroy harmful perchlorate in contaminated groundwater.
Scientist find key to copper absorption, essential to life
Humans, animals and plants require copper to live, and scientists have now discovered how cells absorb this mineral that fuels the brain, heart and other vital organs.
An artificial cornea is in sight, thanks to biomimetic hydrogels
If eyes are "the windows of the soul," corneas are the panes in those windows. They shield the eye from dust and germs. They also act as the eye's outermost lens, contributing up to 75 percent of the eye's focusing power. On Sept. 11 in San Francisco at the annual meeting of the American Chemical Society, chemical engineer Curtis W. Frank presented a novel biomimetic material that's finding its way into artificial corneas.
Electric jolt triggers release of biomolecules, nanoparticles
Johns Hopkins researchers have devised a way to use a brief burst of electricity to release biomolecules and nanoparticles from a tiny gold launch pad. The technique could someday be used to dispense small amounts of medicine on command from a chip implanted in the body. The method also may be useful in chemical reactions that require the controlled release of extremely small quantities of a material.
Animal study suggests two amino acids may modulate addictive behaviour
For some, living without alcohol, cigarettes or even coffee is a daily struggle. Others can give up their vices without ever looking back. From a biological standpoint, the difference may be as slight as a single amino acid, suggests new research from the Rockefeller University laboratories of Mary Jeanne Kreek and Paul Greengard.
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| Quotes | By convention!
cussed Tom airily.
Cmon Scully... Itll be a nice trip through the woods-Fox Mulder
But what ... is it good for?
Engineer at IBM, 1968, commenting on the microchip.
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