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New microsensor measures volatile organic compounds in water and air on-site
09-17-2007 · EurekAlert!Researchers at the Georgia Institute of Technology have developed a miniature sensor that uses polymer membranes deposited on a tiny silicon disk to measure pollutants present in aqueous or gaseous environments. An array of these sensors with different surface coatings could be used during field-testing to rapidly detect many different chemicals.
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Keywords: microsensor, measures, volatile, organic, compounds, water, air, on-site, measure, compound, site
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- Concentrations of certain toxins in breast milk are low, study finds
02-12-2007 · EurekAlert!
Nursing mothers worried about passing harmful chemicals to their infants through breast milk should be aware that the air inside their home may pose a greater health risk. Researchers from Ohio State and Johns Hopkins universities measured the levels of harmful gases called "volatile organic compounds" (VOCs) in human milk and in the air inside the homes of three lactating mothers in inner-city Baltimore.
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- For clean air
03-30-2007 · EurekAlert!
Japanese researchers headed by Anil K. Sinha at the Toyota Central R&D Labs have developed a new material that very effectively removes volatile organic compounds as well as nitrogen- and sulfur oxides from air at room temperature. As they report in the journal Angewandte Chemie, their system involves a highly porous manganese oxide with gold nanoparticles grown into it.
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- Researchers study role of natural organic matter in environment
12-11-2006 · EurekAlert!
The decomposition of plant, animal and microbial material in soil and water produces a variety of complex organic molecules, collectively called natural organic matter. These compounds play many important roles in the environment.
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- Airborne dust causes ripple effect on climate far away
01-29-2007 · EurekAlert!
When a small pebble drops into a serene pool of water, it causes a ripple in the water in every direction, even disturbing distant still waters. NASA researchers have found a similar process at work in the atmosphere: tiny particles in the air called aerosols can cause a rippling effect on the climate thousands of miles away from their source region.
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- University of Oregon researcher finds that on water's surface, nitric acid is not so tough
08-20-2007 · EurekAlert!
Nitric acid is a notoriously strong and chemically destructive compound found in water on earth and in our atmosphere. However, a team of researchers have found that its punch is much weaker when it sits on the top of a water surface.
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- The smell of iron
10-18-2006 · EurekAlert!
The typical "metallic" smell which occurs when we touch iron objects such as tools, utensils, railings or coins actually comes from a bouquet of organic compounds, writes D. Glindemann (U Leipzig, Germany) in a recent communication in the journal Angewandte Chemie.
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- Bacterium could treat PCBs without the need for dredging
03-07-2007 · EurekAlert!
Researchers at Rensselaer Polytechnic Institute have discovered a tiny bacterium that could one day transform the way we remove polychlorinated biphenyls (PCBs) from our environment. The organism could be the key to developing methods that help detoxify commercial PCB compounds on site -- without the need for dredging.
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- Archaeologists reconstruct life in the Bronze Age through the site of La Motilla
01-24-2008 · EurekAlert!
The researchers have excavated for the first time in a scientific and systematic way a site of these characteristics, where they have found the first water well of the Iberian Peninsula. From the 20th century, the "motillas" were erroneously considered to be burial mounds, a theory which was refuted by the experts of the UGR, who proved that it was a fortification surrounded by a small settlement and a necrópolis.
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- Synthetic adhesive mimics sticking powers of gecko and mussel
07-18-2007 · EurekAlert!
Northwestern University biomedical engineers have married the gecko’s adhesive ability with that of an animal well known for its sticking power underwater: the mussel. Combining the important elements of gecko and mussel adhesion, the new adhesive material, called "geckel," functions like a sticky note and exhibits strong yet reversible adhesion in both air and water. The findings could lead to applications in medical, industrial, consumer and military settings.
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- 100 percent of people carry at least 1 type of pesticide
01-04-2008 · EurekAlert!
A study carried out by the Department of Radiology and Physical Medicine at the University of Granada found that all subjects analyzed carried at least one kind of persistent organic compound, substances internationally classified as potentially harmful to one's health. More pesticides, fungicides and insecticides were detected in women than in men, and in adults rather than younger people.
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