Tag: "salt" at biology news
Researchers create nanotubes that change colors, form 'nanocarpet' and kill bacteria
...ingle-step synthesis of a hydrocarbon and a simple salt
compound produced these unique nanotube structures...a chemical structure called a quarternary ammonium salt
group, known for its ability to disrupt cell membranes and cause cell death, with a hydrocarbon diac...
Pollutant causes delayed flowering in plants
.... And, it was known that stimuli, such as drought, salt
stress and pathogen infection, induced internal nitric oxide production. But it was not expected that external nitric oxide affected the flowering pathway." To explore how the molecular machinery of the plant was affected by nitric oxide, the researc...
Green, leafy spinach may soon power cellphones and laptops
...s in the past. Biological materials need water and salt
to survive-both are deadly for electronics. FROM WET TO DRY A new twist in the current work is a membrane of peptide surfactants-similar to the main ingredient in soap-that helped the photosynthetic complexes self-assemble and stabilize while t...
Students build submarine to track Octopuses
...take the dome off and expose the computer parts to salt
air, but, of course, we immediately blew some fuse... the electronics inside the sub to protect it from salt
air when Shadow inevitably has to be adjusted on-site. Repackaging the computer parts will be the la...
APS awards more than $140,000 to minority students of physiology
... is investigating the effects of increased dietary salt
intake on microcirculation. Her research will give insight on the mechanism of hypertension due to high levels of salt. Jessica Clark University of Arizona The focus of Ms. Clark's research is epidermal growth factor (EGF) and its role in protect...
OneWorld Health compiles comprehensive state of infectious diarrhea treatments, potential solutions
...ORT involves giving a dilute solution of sugar and salt
orally to children to replace both the water and vital nutrients (electrolytes) lost in diarrhea; it does not treat the diarrhea itself. Parents, out of frustration that ORT does not reduce stool output, purchase antibiotics for their children, whic...
No longer just for biology, RNA can now be built into 3-D arrays
... of environmental conditions, such as temperature, salt
concentration, and pH." Peixuan Guo From experts at NSF: "The discovery of this viral RNA machine is quite remarkable and provides yet another example of the flexibility and versatility of RNA. Dr. Guo is exploiting the properties of RNA in a new a...
Pollination find could lead to cordgrass control
... sperm. It has a very short life." Working in the salt
marsh of Willapa Bay, Wash., Davis and colleagues studied wind pollination at two stages of a Spartina invasion: early, when plants are spread apart, and late, when plants form a solid meadow. Wind pollination worked well for late-invasion meadow pl...
JCI table of contents, 16 August, 2004
...ed Na excretion, which indicates that ET-1 affects salt
retention under Na-loading conditions. Treatment of normal- or high-Nadiet mice with the natriuretic agents amiloride or furosemide reduced blood pressure and alleviated Na retention, which suggests that CD-derived ET-1 regulates Na reabsorption thro...
Revealing bizarre deep-sea secrets
...ast of New Orleans known as the Brine Pool. There, salt
deposits in the seafloor dissolve to create water so dense that it forms a shallow lake 2,100 feet below the ocean's surface. The expedition's main mission will be to discover new animals and new behaviors at these locations. To do that, the team wi...
UCSD researchers are first to demonstrate molecular link between inflammation and cancer
...nflammatory irritant called dextran sulfate sodium salt
(DSS), that eroded the intestinal-tract epithelial cells, allowing the entrance of enteric bacteria, with resulting inflammation generated by the body to fight the infection. In normal mice, these two compounds trigger both inflammation and, a few m...
Environment influences learning: U of T study
...s first placed worms on agar plates treated with a salt
medium, exposed them to the smell of benzaldehyde ...ell with starvation. If a worm was returned to the salt
medium where it had been trained, it showed a distaste for the benzaldehyde odour, but it did not de...
Newly designed nanoparticle quantum dots simultaneously target and image prostate tumors in mice
...ie. "They are stable over a broad range of pH and salt
conditions and maintain their stability even after treatment with hydrochloric acid." Quantum dots are more brightly fluorescent than traditional dyes and fluorescent proteins often used for imaging, and because they emit different wavelengths over a...
Nature mimics industry
...y of which contain halogen due to the ocean's high salt
content." Sponges and other marine organisms produce a variety of bromine-based organohalogens, which repel predatory fish and prevent bacterial overgrowth, he says. These compounds are being studied to someday prevent barnacle growth on the undersid...
UCSD team determines cellular stress within body is critical
...ic stress. The kidney controls how much water and salt
is in our blood using a mechanism that results in very high levels of osmotic stress within certain areas of the kidney. "As immunologists, we were at first rather puzzled when we found that a protein that was thought to help cells of the kidney ada...
Chemical Society announces EPA awards for environmentally friendly technology
... or acid catalysts and thus avoided the pounds of salt
waste normally left over from such reactions. Jeneil Biosurfactant Company (Saukville, Wis.) This small business developed a commercial process to cost-effectively produce rhamnolipid biosurfactants, which have applications in agriculture, cleanin...
$6 million appropriation to focus Sandia research on drinking water desalination, removal of arsenic
...s been in developing new technologies for removing salt
from brackish water," Hightower says. "But equally important is what to do with the salt
once it is removed." Removing the teaspoon of salt
that makes a glass of seawater-like brine undrink...
A fly's taste experience is much like our own
...t flies, like mammals, probably also have sour and salt
taste receptors, but these have yet to be characte...neurons remain a mystery - they may be specific to salt
or sour. Once the researchers had killed a taste neuron, they tested whether the altered flies could...
ESA and EADS-CASA sign contract to build instrument for the SMOS mission
...drological cycle." The moisture in soil and the salt
in the oceans are intrinsically linked to the Earth's water cycle and climate. Currently, in-situ measurements for soil moisture are sparse, but if we are to better understand the water cycle so that the forecasting of climate, weather and extreme ev...
Tracking climate change
.... The cores give information on water temperature, salt
content and ocean currents and, in addition, will show how and when the Arctic sea ice was formed. This information will be highly significant to our understanding of global climate changes. The drillings will be carried out very close to the pole, o...
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