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Monday, April 7, 2014

ScienceDaily: Strange Science News

ScienceDaily: Strange Science News


Self-assembled silver superlattices create molecular machines with hydrogen-bond 'hinges' and moving 'gears'

Posted: 06 Apr 2014 01:22 PM PDT

A combined computational and experimental study of self-assembled silver-based structures known as superlattices has revealed an unusual and unexpected behavior: arrays of gear-like molecular-scale machines that rotate in unison when pressure is applied to them.

Zombie cancer cells eat themselves to live

Posted: 05 Apr 2014 08:38 PM PDT

A new study shows that the cellular process of autophagy in which cells 'eat' parts of themselves in times of stress may allow cancer cells to recover and divide rather than die when faced with chemotherapies.

The long and the short of telomeres: Loneliness impacts DNA repair, parrot study shows

Posted: 04 Apr 2014 07:17 PM PDT

Scientists examined the telomere length of captive African grey parrots. They found that the telomere lengths of single parrots were shorter than those housed with a companion parrot, which supports the hypothesis that social stress can interfere with cellular aging and a particular type of DNA repair. It suggests that telomeres may provide a biomarker for assessing exposure to social stress.

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