Researchers have devised a treatment that mechanically repairs burst cell membranes in the brain, somewhat like puncture sealants used in bicycle tyres, and could therefore help to avert brain damage after serious head injuries.
Brain-injured rats that are injected with a polymer called polyethylene glycol (PEG) soon after their injuries recover certain behavioural abilities better than untreated rats, report researchers in this week’s Journal of Biological Engineering. Continue reading
Mice with specific light-sensing cells removed from their retinas can see perfectly well but can’t tune their body clock, scientists have shown. The discovery provides more evidence that light detection by the retina is crucial for mammals to stay on a 24-hour circadian cycle. Continue reading
Robots inspired by moths, locusts, flies and swifts will take to the sky this week in an international competition for micro aerial vehicles in Agra, India. Teams will vie for the title — as well as up to US$600,000 in funding — for their tiny flying machines. Continue reading