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Tag: "pure" at biology news

Record air pollution above the Arctic

...arge-scale weather situation. Usually the air is pure and clear above the French-German AWIPEV-Research base in Ny-Ålesund at the western coast of Svalbard. However, at the beginning of May it turned to a deep orange-brown. Confirming the observations of the German team, Swedish scientists of the Depart...

Pure novelty spurs the brain

...ball images to distinguish the brain's reaction to pure novelty itself from the other possible sources of brain activation, such as emotional arousal. In a second set of oddball experiments, the researchers sought to determine whether the SN/VTA encodes the magnitude of novelty. In those experiments, th...

A single sugar found responsible for an antibody's ability to treat inflammation

...m of IVIG that will work 100 times better and be a pure molecule--to build a much better class of therapeutics based on a property that already exists in nature." ...

Finding paves way for better treatment of autoimmune disease

...to grow and, in one week, you get about 90 percent pure regulatory cells." The approach worked with laboratory-grade alcohol, called butanol, as well as beverage-grade ethanol. Normally, regulatory T cells constitute about 5 percent of the T cell compartment, Dr. Iwashima says. Isolating them is doa...

Buckyballs boost antibody's chemotherapy payload

...ls. Buckyballs are soccer ball-shaped molecules of pure carbon that can each be loaded with several molecules of anticancer drugs like Taxol®. In the new research, the scientists found they could load as many as 40 buckyballs into a single skin-cancer antibody called ZME-018. Antibodies are large protein...

Secrets of the sea yield stronger artificial bone

...d to the ocean. When seawater freezes, crystals of pure ice form layers, while impurities such as salt and microorganisms are expelled from the forming ice and entrapped in channels between the ice crystals. The result is a layered structure that roughly resembles nacre's wafer-like construction. The Ber...

Terahertz imaging may reduce breast cancer surgeries

...vasive ductal and lobular carcinomas, two cases of pure ductal carcinoma in situ and one dense radial scar. In breast cancer excision surgery, the aim is to remove the entire tumor with an adequate margin of normal tissue, while minimizing the amount of healthy tissue being removed. If a histopathologist...

UF scientists reveal ancient origin of vertebrate skeleton

... the exclusion of lampreys and hagfishes, is bone, pure and simple," Caldwell said. "It is the lack of bone in these animals and the supposed uniqueness of their cartilage, that has for so long plagued scientists in their attempts to place them in the evolutionary scheme. An entire taxonomy was created fo...

UF scientists reveal ancient origin of vertebrate skeleton

... the exclusion of lampreys and hagfishes, is bone, pure and simple," Caldwell said. "It is the lack of bone in these animals and the supposed uniqueness of their cartilage, that has for so long plagued scientists in their attempts to place them in the evolutionary scheme. An entire taxonomy was created fo...

GROWing the next generation of water recycling plants

...be of drinkable quality yet it comes from the same pure source as our kitchen taps. Using GROW, much of the water that enters a building can be used twice before being placed into the national wastewater management system. "We had to carefully choose which semi-aquatic plants to use. One of the most succ...

Sperm stem cells closer to being like embryonic stem cells

... key is to start with a sample that is 100 percent pure germ cells, which we achieved using the fluorescent marker and other purification methods that are different from those used by other research groups." Other UT Southwestern researchers involved with the work were Dr. Robert Hammer, professor of bio...

Anthrax stops body from fighting back, study shows

...s. Unlike an intact inhalation anthrax spore, the pure toxin is not dangerous for researchers to use and allows them to isolate specifically how the toxin is affecting cells, Southwick said. Low doses of the lethal toxin stopped the protein actin from building filaments to steer the neutrophils, stoppin...

Modifications render carbon nanotubes nontoxic

...gnostics. Nanotubes are long, hollow molecules of pure carbon with walls just one atom thick. They are related to buckyballs, tiny spheres of pure carbon that are about the same diameter. In previous studies with buckyballs, CBEN found that even ...

The right drug at the right time

...jected. They chemically decompose and recombine as pure CdSe nanoparticles. Once these nanocrystals form, scientists can adjust their optical properties by growing them to precisely the size they want by adjusting the cooking time. The solvent originally used for this process was trioctylphosphine oxide,...

Method slashes quantum dot costs by 80 percent

...jected. They chemically decompose and recombine as pure CdSe nanoparticles. Once these nanocrystals form, scientists can adjust their optical properties by growing them to precisely the size they want by adjusting the cooking time. The solvent originally used for this process was trioctylphosphine oxide,...

Color perception is not in the eye of the beholder: It's in the brain

... to tune the color of a disk of light to produce a pure yellow light that was neither reddish yellow nor g...t wearing the contacts, they all began to select a pure yellow that was a different wavelength than they had before wearing the contacts. "Over time, we w...

U-M scientists discover identifying markers for primitive blood-forming stem cells

...lex and it takes a high level of skill to obtain a pure sample of HSCs," Kiel says. "We showed that using just two SLAM markers gives you similar or better purity than 10 to 12 of the best classical markers combined. It reduces the skill and time required to pick out a hematopoietic stem cell and makes th...

Cells direct membrane traffic by channel width

... properly, as do water molecules to pass through a pure water channel (as documented by researchers in the...m. "Both were from the same bug, E-coli. One was a pure water channel. The other is a glycerol channel," Tajkhorshid said. "Structurally they are similar. R...

'Gadonanotubes' greatly outperform existing MRI contrast agents

...he metal atoms are encased inside a hollow tube of pure carbon called a nanotube. Shrouding the toxic meta...use short segments of nanotubes, tiny cylinders of pure carbon about one billionth of a meter, or one nanometer, in diameter. That's about as wide as a stra...

Bacteria are key to 'green' plastics, drugs

... coli that metabolizes glucose and produces almost pure succinate. Finding "green" methods to make key chemical intermediates like succinate is a high priority for the chemical industry. Green technologies use renewable resources like agricultural crops rather than non-renewable fossil fuels, and they pr...

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