Spray-On Polymer Mats Heal Wounds Fast

Researchers have discovered that they can spray polymer nanofibers directly onto living tissues using an airbrush purchasable at any hardware store. These biodegradable mats of sticky fibers can seal surgical incisions and help them to heal.


(From PLGA nanofibers sprayed onto gloved hand)

Current methods for making the mats—such as electrospinning, which involves electric current—would damage living cells if the mats were made in situ. To devise a way to create the mats directly on the tissue, Kofinas and colleagues adapted a commercial airbrush, a tool more commonly used to apply paint.

They tinkered with different formulations of a biodegradable polymer, poly(lactic-co-glycolic acid), or PLGA, to find one that would work in the airbrush. By choosing a particular molecular weight of PLGA and concentration of acetone as the solvent, they could control the diameter of the resulting fibers. They ended up producing mats with fiber diameters of about 370 nm.

The researchers showed that the mats could seal diaphragm hernias and cuts to the lung, intestine, and liver in a pig. The acetone appears to evaporate before the nanofibers get deposited, suggesting that the solvent won’t pose toxicity problems, according to the paper. Cells sprayed with the PLGA nanofibers show no change in health after 24 hours. In lab tests, the nanofiber mats degraded completely over a 42-day period.

The polymer nanofiber mats are currently being improved and studied for upcoming surgical trials in laboratory animals.

Science fiction fans have been nursing their cuts and scrapes ever since the 1960 novel Dr. Futurity, in which Philip K. Dick wrote about art-derm - spray-on skin that could be directly applied to wounds.

Over her lacerated right shoulder he sprayed art-derm; it sealed off the open wound, halted bleeding, and prohibited infection.
(Read more about art-derm)

From In Situ Deposition of PLGA Nanofibers via Solution Blow Spinning via Chemical & Engineering News.

Scroll down for more stories in the same category. (Story submitted 3/27/2014)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Medical ")

Moran Cerf, When Will We Get Neuro Tech For Ourselves?
If brainwave-sensing consumer products tickle your fancy, try real science!

Performance Enhancing Drugs - In Gaming?
'A faint smell of rachag stimulant wafted down the table.'- Frank Herbert, 1965.

MC10 Electronics Skin Stickers
'Every diaper... a fine copper wire…' - David H. Keller, 1928.

EDSAP Wearable Stroke Detection
'His Altec cephalochromoscope, around which he had built the pleasure part of his schedule...'- Philip K. Dick, 1977.

 

Google
  Web TechNovelgy.com   

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.

 

 

 

 

 

Current News

Zap Space Debris With Telescope Laser On ISS
'... their lasers vaporized the smaller satellites...'

Moran Cerf, When Will We Get Neuro Tech For Ourselves?
If brainwave-sensing consumer products tickle your fancy...

Velkess Energy Storage System (It's A Flexible Flywheel!)
'The kinetic man unjacked Lalji’s kink-springs from the winding treadmills...'

Performance Enhancing Drugs - In Gaming?
'A faint smell of rachag stimulant wafted down the table.'

Automated Treadmill Adjusts To Your Pace
'The auto-treadmill's bumps and gullies matched...'

Mr. Anderton, Beware This Long-Range Iris Scanner
Try keeping your eyes shut, Mr. Anderton.

Mini Statues Of You From 3D Images
'...A three-dimensional simulacrum of himself six inches high took form.'

'Forever' Camera Powered By Its Own Images
'What I have in this camera is not a record of what you did just now but what will go on here in the next half hour...'

Robot Chef Makes Thousands Of Dinners
'I got one of those new electronic cameras... and I could construct this one to do it exactly right down to the thousandth of a second.'

Revault Wearable Private Cloud Is Too Vaporous
'A man or woman could carry AIs or complete planetary dataspheres...'

Spacex Sticks Landing! But Neglects Lateral Forces
So close!

Lumo Projector Turns Kids Rooms Into Bradbury's Veldt
'The walls began to purr and recede... and presently an African veldt appeared...'

Ground Control Space Beer
Ninkasi Brewing Co. has its own space program.

Google Wants To Give Orders To Robot Armies
Or maybe they aren't bent on world domination.

Gestures Control Spider Robot Army
'What do you think - four spiders, one per floor?'

Hologram Protest World's First
'Their bodies were in their dwelling cells, but their telucid images filled the hall.'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.