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Tag: "elasticity" at biology news

Breakthrough isolating embryo-quality stem cells from blood

...l characteristic of each cell ?its stretchiness or elasticity ?instead of its biological make-up, to decide whether or not it's a stem cell. Stem cells don't need a rigid "cytoskeleton" to hold them in shape, which makes them stretchier than normal cells. Käs and Guck's machine uses a powerful beam of infrared...

Protein 'nanosprings' most resilient found in nature

...archers said. The team speculates that the linear elasticity of 24 ankyrin repeats may play an important biolog...e a wonderful material anytime you need to provide elasticity or force," Marszalek said. "They could open gates, for example, or could perhaps act as shock absorb...

Proteins as parents

...ur tissues the necessary strength and take care of elasticity and tensibility. Such proteins are also interesting as building blocks for novel high-tech materials because the natural materials often outperform the artificial: One only has to think about the highly elastic and extremely tear-proof spider draglin...

Elasticity imaging identifies cancers and reduces breast biopsies

...nguish benign from malignant breast lesions. Using elasticity imaging, researchers correctly identified both can...al Society of North America (RSNA). “In our work, elasticity imaging has been found to have high specificity,?said Richard G. Barr, M.D., Ph.D., professor of rad...

Environmental toxins may cause body's defenses to worsen lung disease

...chers says, it can cause irreparable damage to the elasticity of the lung and lead to additional health problems. Using an animal model, Borchers will expose surface cells in the lung to two environmental toxins--the bacteria pseudomonas aeruginosa, a major cause of in-hospital infections, and acrolein, an ai...

Stretching DNA to the limit

... cancers. However, not much is known about how the elasticity of DNA strands is altered upon exposure to UV ligh...nable the accurate determination of changes in the elasticity of the DNA strands. Upon exposure to UV light, the force profile of the viral DNA changes dramatical...

Exploring the molecular origin of blood clot flexibility

...ing the mechanics of the relationship between clot elasticity and disease. Recent research by other scientists showed that a fibrin fiber could stretch four to five times its original length before snapping. "This is among the most extensible, or stretchy, of polymers that anyone has ever found," says Weisel...

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