Tag: "bubbles" at biology news

Batten down the hatches against HIV

...ecause they can trigger allergies. Liposomes, tiny bubbles of fat, are safe but have proven to be ineffective for use in T-cells. Dai and his co-workers have tested a new transport system: carbon nanotubes are known for their abilities to be absorbed by cells and to smuggle other molecules in at the same tim...

Brain works more chaotically than previously thought

...lectrical impulse runs through an axon cable, tiny bubbles containing glutamate travel to the axon membrane a...have already been developed that prevent glutamate bubbles from discharging their load into the brain. Indeed, Bonn's neuroscientists now know precisely which ...

Siberian lakes burp 'time-bomb' greenhouse gas

Frozen bubbles in Siberian lakes are releasing methane, a greenho...d important component of lake emissions - in these bubbles were the dominant source of methane from lakes," said Walter, an International Polar Year post-docto...

Contrary to common wisdom, scientist discovers some mammals can smell objects under water

...observed that a mole he was studying blew a lot of bubbles while swimming. "This came as a total surprise ... it. After observing that the moles were blowing bubbles out of their nostrils and then sucking them right back in, he determined they were exhaling and inha...

Bubbles go high-tech to fight tumors

...a more sophisticated application to the list---gas bubbles used like corks to block oxygen flow to tumors, or...w to a tumor is called embolization, and using gas bubbles is a new technique in embolotherapy. What makes it so promising is that the technique allows doctors...

Asleep in the deep: Model helps assess ocean-injection strategy for combating greenhouse effect

...dioxide can rise toward the surface, turn into gas bubbles and vent to the atmosphere, defeating the purpose of the whole grand scheme. Even worse, if the liquid-to-gas conversion happens suddenly, the gas can bubble up in a plume and erupt---a potential hazard. Small-scale ocean experiments have been done...

Discovering the first steps in transcription-coupled repair

... The researchers created artificial transcription bubbles of DNA in various sizes, in vitro. In this way the... that XPG shows a strong preference for binding to bubbles of just the size typical of transcription -- that is, the size of the bubble opened by RNAPII. Ident...

After the yeast is gone bacteria continue to develop flavor of sparkling wine

...de which dissolves in the wine and is perceived as bubbles when the bottle is opened, hence the term "sparkling". After the fermentation is completed the Cava wine is aged in the bottles with the yeast for at least nine months, or longer for premium quality wines. During aging, substantial chemical changes t...

Genome Sequence for Haemophilus Influenzae Completed

...ologists have observed otters actively blowing air bubbles into their fur while grooming, and their energetic rolling catches air in their fur. "The air insulates like a down jacket," explains Weisel. A common otter behavior, next to their playfulness, is their constant grooming. This behavior is another im...

Otter adaptations: How do otters remain sleek and warm

...ologists have observed otters actively blowing air bubbles into their fur while grooming, and their energetic rolling catches air in their fur. "The air insulates like a down jacket," explains Weisel. A common otter behavior, next to their playfulness, is their constant grooming. This behavior is another im...

Shutting down the HIV assembly line

...s roll off the cellular assembly lines, burst like bubbles out of the cell, and float off to invade other cellular factories. Vanderbilt University Medical Center investigators have now identified an early step in HIV particle assembly. The findings, published March 11 in Cell, could lead to new drugs that c...

New lab technique identifies high levels of pathogens in therapy pool

...nd that pathogens thrived inside hydrogen peroxide bubbles produced at the pool surface and were dispersed as the bubbles became airborne and burst. The hydrogen peroxide also eliminated microbes competing with "Mycobacter...

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