Honestmed
Wednesday, April 12, 2006
  How to print a beating heart
NewScientist.com
This week's top stories from the web's No.1 science and technology news service
12 April 2006
Welcome to the New Scientist newsletter, which this week reveals a technique to "print" bespoke living tissues, the cocaine hidden in clear view, and the aerodynamic insights from an eagle in flight...
Edinburgh Science Triangle
Will Knight
Will Knight, Senior Online Reporter
Artery Prints

Sitting in a culture dish, a layer of chicken heart cells beats in synchrony. But this muscle layer was not sliced from an intact heart, nor even grown laboriously in the lab. Instead, it was "printed", using a technology that could be the future of tissue engineering. Droplets of "bio-ink" - clumps of living cells a few hundred micrometres in diameter - flow together and fuse when squirted close to each other. They can be made to form layers, rings and tubes - which could serve as blood vessels - depending on how they are deposited. Bioprinting could develop into a fast and cheap way to engineer a variety of tissue types...MORE

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Gangs turn cocaine into clear plastic products Premium
Smugglers may be trying to incorporate cocaine into host of innocent-looking plastic consumer products, such as fish tanks and DVD cases

All the pleasures of alcohol, with no downsides
There is no reason why a cocktail of drugs to mimic the good effects of a few drinks cannot be made right now - it's an idea worth toasting

Are prions the real cause of BSE and vCJD? Premium
Abnormal prions - misshapen versions of normal brain proteins - may not be infectious agents, but a consequence of "prion diseases"

Tenth planet as bright as fresh snow
It is only slightly larger than Pluto, new images prove - but this means the distant world must be incredibly reflective, suggesting it is constantly being resurfaced

Mamma mia! Eurovision voting scandal uncovered
Mathematical analysis has revealed what everyone watching it already knew - conspiracies are afoot in the Eurovision song contest

Eagle-cam provides aerodynamic insights Video available
Cameras and sensors mounted on a free-flying eagle may help the shape-shifting aircraft of the future to perform dare-devil aerobatics

LAST WORD
 
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Ever wanted to grow an ice spike? Then find out how in this week's Last Word column...MORE

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Fast language learners boast more white matter
The research is part of a growing understanding of how scans of brain shape and structure can give information about people's abilities

Invention: Wing-sprouting drone
This week's patents feature the drone that saves launch-fuel by being fired from a gun before inflating its wings, and transistors made of pure diamond

Genome-in-a-day promised as DNA is put through hoops Premium
It took a decade of hard slog to produce the first, momentous, human genome readout - but a new device may soon do the job in just 24 hours

Europe's Venus Express pulls into orbit
The first European spacecraft to visit Venus settles safely into orbit around Earth's "evil twin", poised to peel away its hothouse mysteries

Will replanting coasts protect against tsunamis? Premium
Some experts say fewer lives would have been lost in the 2004 tsunami, had the coasts been protected by dense coastal forests - but is it true?

Hybrid comet-asteroid in mysterious break-up
New images reveal something substantial has broken off an icy 50-kilometre object beyond the orbit of Saturn - it could have blown up or been hit

AND FINALLY ...
This week's Feedback column considers the radio-blocking power of tin hats, the perils of letting environmentalists make SUV commercials, and the mystery of "Lubricated Fair-Clips"...MORE

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Electrify your mind - literally Premium
Amazing things can happen when you pass a weak current through your head, as New Scientist discovers

The myth of 'mood stabilising' drugs Premium
There's a huge gap between claims made for these drugs and evidence for their safety and effectiveness - yet they are now being dished out even to young children

Climate change: The great Atlantic shutdown Premium
Shock findings suggest vital Atlantic currents are slowing dramatically. Will this soon plunge Europe into winter, turn the Amazon into grassland and cause famine in Asia?

Quantum computing: When photons go AWOL Premium
When photons go missing in action, is should be curtains for your quantum computer, so how come it works better without them?

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