Shape-Memory Polymers Temperature Morphing
Shape-memory polymers created by researchers from MIT and the Institute of Polymer Research in Germany can morph into three different structures - and then revert back to its original shape - in response to specific changes in temperature.
shape-shifting polymers do their thing in the video below; it shows a fastener which unfolds itself and then extends two arms to secure the structure to a plastic container. This item could be used on assembly lines to fasten small parts in difficult-to-reach places.
Shape-shifting polymer has three temperature-controlled shapes)
Another unique use for
shape-memory polymers is proposed in biodegradable sutures that shape themselves.
Shape-memory polymer biodegradable sutures)
To test this concept, researchers Dr Andreas Lendlein and Dr Robert Langer made sutures by heating fibers of their ‘shape shifting’ material to 50°C. They were then stretched to three times their length and cooled to room temperature. These extended fibers were then used to loosely stitch a wound on a rat. When the suture was heated to 41°C (just above body temperature), the thread tightened and closed the wound, applying just the right amount of pressure (0.1 N). Later, after the wound is healed, the material is designed to dissolve and is harmlessly absorbed by the body.
Like those shape-memory toys?
The first time I read about the idea of a shape memory alloy was in Samuel R. Delany's 1966 novel Update: 21-Oct-2016: Babel-17; see the entry for tensile memory polarized matter.
shape-memory polymers and shape-memory biodegradable sutures.
Scroll down for more stories in the same category. (Story submitted 11/25/2006) Follow this kind of news
| | Email | RSS | Blog It Stumble | del.icio.us | Digg | Reddit
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and . add
Comment/Join discussion ( 0 )
Related News Stories -
3D Printed Graphene Aerogel - So Light!
'... light as cork and stronger than steel...' - Edgar Rice Burroughs, 1929.
Vantablack Now IMMEASURABLY Black
'a black coating now that’s ninety-nine percent absorptive...' - Doc Smith, 1934.
New Paper - Write With Light Erase With Heat
Writing with light, erasing with heat.
Reconfigured Graphene 10X Strong, 5 Percent Dense, As Steel
'...It was made of Alohydrolium, which is the lightest of all metals.' - Hugo Gernsback, 1911.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Nifty New SDS Space Debris Sensor For ISS
'Their radars... could easily pinpoint the debris of the early Space Age.'
NanoRacks Space Station Module Concept Validated
Space junk into space architecture.
Nuclear Drones Could Fly For Years
'I sent my eyes on their rounds and tended my gallery of one hundred-thirty changing pictures...'
SciFiQ Science Fiction Writing Aid
'Books were just a commodity that had to be produced, like jam or bootlaces.'
Robot Only Faster, Not Better, At Recycling
'Whenever a robot finds something it can't identify straight off... it puts whatever it is in the hopper outside your window.'
Poland Starts With 1000 Warmate 'Suicide Drones'
'Royal Security had told the pods to electrocute you or blast you into chum.'
Dream Of Building Your Own Rocket?
Fiorello Bodoni, you inspire all of us.
Zero Mass 'Vaporators' Pull Drinking Water From The Air
Did you think of Star Wars?
Elon Musk Fears A 'Fleet-Wide Hack' Of Autonomous Vehicles
'Khan grinned. 'It's alive! Bu-wahhahahah!''
China Melts Tibetan Permafrost To Plant Forest
'Can you give us a microwave spotlight?'
iFlytek Doctor Robot First To Pass Medical Exams
Doctor shortage? No problem, we'll just use the autodoc.
Slaughterbot AI KIller Quadcopter Drones
'The real border was defended by... a swarm of quasi-independent aerostats.'
Do We Really Want Backflipping Robots?
Also includes wonderful blooper reel.
RNA-Based Biocomputing Device
Living things can sense and analyze complex signals in living cells.
Seasteading Floating Cities
'It was a remarkable island, circular, about half a kilometer in diameter.'
Tesla Semi 'Electrotruck' Unveiled
Elon Musk unveils yet another technological marvel.
More SF in the News Stories
More Beyond Technovelgy science news stories