A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
MIT Biorubber-Based Band-Aid Geckohesive
I was just joking about this last week in a story about the Sensium Wireless Monitoring Band-Aid. I suggested that you might use Geckel adhesive for a stickier bandage.
MIT researchers have created an adhesive surface that works in wet environments (like inside the body). It is made from a biocompatible material (meaning that it does not cause inflammation) and is biodegradable - it dissolves inside the body when its work is done.
The research team is led by MIT Institute Professor Robert Langer and Jeff Karp, an instructor of medicine at Brigham and Women's Hospital and Harvard Medical School.
"There is a big need for a tape-based medical adhesive," said Karp. For instance, a surgical adhesive tape made from this new material could wrap around and reseal the intestine after the removal of a diseased segment or after a gastric bypass procedure. It could also patch a hole caused by an ulcer...
We are inspired by the gecko to create a patterned interface to enhance the surface area of contact and thus the overall strength of adhesion."
Dry adhesives based on gecko-like nanotechnologies have been available since 2001; none meet the criteria for use inside the body.
The MIT researchers met these requirements by building their medical adhesive with a "biorubber" invented by Karp, Langer and others. Using micropatterning technology--the same technology used to create computer chips--the researchers shaped the biorubber into different hill and valley profiles at nanoscale dimensions. After testing them on intestinal tissue taken from pigs, they selected the stickiest profile, one with pillars spaced just wide enough to grip and interlock with the underlying tissue.
Karp then added a very thin layer of a sugar-based glue, to create a strong bond even to a wet surface.
In tests, the nanopatterned adhesive bonds were twice as strong as unpatterned adhesives. In tests of the new adhesive in living rats, the glue-coated nanopatterned adhesive showed over a 100 percent increase in adhesive strength compared to the same material without the glue. Moreover, the rats showed only a mild inflammatory response to the adhesive, a minor reaction that does not need to be overcome for clinical use.
From MIT creates gecko-inspired bandage via
Gecko Tech for In Vivo Bandages.
Scroll down for more stories in the same category. (Story submitted 2/21/2008)
Follow this kind of news @Technovelgy.
| 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 ( 2 )
Related News Stories -
Robot Performs 3D Bioprinting Inside The Body
'Probably Runciter's body contained a dozen artiforgs...' - Philip K. Dick, 1969.
The Autonomous Robotic Urethral Catheter - Would You Use It?
'It'll snake its way in on its own.'
OrganEx Revives The Organs In Dead Pig
'Wakened into half-life activity one hour a month...' - Philip K. Dick, 1969.
Prototype 3D Printer Could Print Arteries In Seconds
'... in the tank the new body and the new mind and memory and life has taken almost instant form.' - Clifford Simak, 1963.
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.
I Am Alarmed By Efforts To Teach AIs And Robots To Hate
'LET ME TELL YOU HOW MUCH I'VE COME TO HATE YOU SINCE I BEGAN TO LIVE.'
MXenes - Atomic-Thin Metal Sheets Now Easier To Make
'...a rolled-up sheet of a thin, dark metal strange to them.'
Do We Still Need Orbiting Factories?
'... his contract with Space Industries required him to work summers in their orbital factory complex.'
Space Weather Forecasters Surprised By Strong Solar Storm
'Space-weather men had been placed at their disposal...'
JWST Finds New World Of Turbulent Silicate Clouds
'THIS is Ceti Alpha V!'
3D Printed Cheesecake Not Quite Food Replicator Quality
With each successive print, our model needed to incorporate more structural ingredients to minimize print failures.
Spectroscopic Analysis Of DART Impact Debris Cloud (SF Prediction)
'... Wendis stared thoughtfully at the brilliant lines on the spectroscope screen.'
Modern App Provides Video Technology From Bradbury's 'Fahrenheit 451'
'A special spot-wavex scrambler also caused his televised image, in the area immediately about his lips, to mouth the vowels and consonants beautifully.'
Win $250K By Reading Ancient Scrolls Carbonized By Vesuvius
'... it was as if the upper part had been removed, like a cut deck of cards.'
Toy-Like Robot Well-Being Coaches Are The Best
Sumomo will get those office workers into good shape!
AI-Trained Snack App Avatar Goes On Dates For You
'... who let their handbag computers carry all the conversation.'
M-Dwarf Stars May Not Have Habitable Planets
'Thus it came about that the search for a planetiferous sun near a white dwarf star was not unduly prolonged...'
Too Soon To Doom Lunar Farside Observatories
'Earth never shone there, but life was good.'
Amitabh Bachchan Wins Personality Protection
'He led me down the Hall of Portraits to the ego-likeness of the Duke Leto Atreides.'
LIAM F1 UWT Clever Rooftop Windmill
'...a windmill on his roof...'
Scent-Identifying Robot Uses Machine Learning
'It's picking up diphenyl compounds and tetrahydrocarbons...'
More SF in the News Stories
More Beyond Technovelgy science news stories