News tagged with light

Optogenetic toolkit goes multicolor

Optogenetics is a technique that allows scientists to control neurons' electrical activity with light by engineering them to express light-sensitive proteins. Within the past decade, it has become a very powerful tool for ...

Feb 09, 2014
popularity 5 / 5 (4) | comments 0 | with audio podcast

Blue light may fight fatigue around the clock

Researchers from Brigham and Women's Hospital (BWH) have found that exposure to short wavelength, or blue light, during the biological day directly and immediately improves alertness and performance. These ...

Feb 03, 2014
popularity 3.5 / 5 (4) | comments 0 | with audio podcast

Distribution of photoreceptors in the retina of mice

Guppies, hyenas and mice share one particular retinal specialization in their eye: Photoreceptors ("cones") sensitive to 'green' light are largely located in the top half of the eye, whereas cones sensitive to 'blue' light ...

Dec 05, 2013
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Study highlights need for better sunscreens

A low level of daily exposure to a common component of sunlight can cause skin damage at the molecular level after just a few days, new University of Michigan Medical School research shows.

Dec 04, 2013
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