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
Self-Cleaning Wool And Silk Fabrics
Self-cleaning fabrics made from wool and silk have been achieved, in the laboratory, using nanoparticle coatings. In tests, coated fabrics were greatly resistant to common stains.
(Self-cleaning fabrics [pdf])
FESEM (Field Emission Scanning Electron Microscopy) images of (a) pristine wool fiber, (b) modified wool fiber, (c) T60-coated wool fiber, (d) T60-coated modified wool fiber.
The nanoparticle coating was more effective than plain wool as well as wool coated with a conventional stain-fighting coating.
(Comparison of nanotech coating for stain protection [pdf])
"wool treated with a new nanoparticle coating (bottom row) removed red wine stains more effectively than plain wool (top row) and wool coated with another stain-fighting chemical (middle row), scientists say. (Credit: Monash University and American Chemical Society) It shows "the degradation of red wine stains on pristine PO, T60-coated TO, and T60-coated modified TS samples after 0, 8, and 20 h of light irradiation by a solar light simulator."
The study concludes:
This study shows that self-cleaning fibrous proteins such
as wool can be produced by a simple coating process with
anatase TiO2 under mild conditions. A modification of these
fibrous proteins with succinic anhydride introduces additional
carboxylic groups by acylation which allows for enhanced
bonding between TiO2 and the fibers that in turn results in
more effective self-cleaning properties. The chemical modi-
fication and anatase coating processes do not employ toxic
reagents or solvents and the procedures are carried out under
mild conditions favorable for keratinous materials.
Science fiction fans are ready to order their self-cleaing clothing; Neal Stephenson serves up the vision from his 1995 book The Diamond Age:
...with a quick brush, John and Gwendolyn were able to transfer most of the dirt onto their white gloves. From there it went straight into the air. Most gentlemen's and ladies' gloves nowadays were constructed of infinitesimal fabricules that knew how to eject dirt; you could thrust your gloved hand into mud, and it would be white a few seconds later.
(Read more about fabricules)
If you're into the subject, take a look at Self-Cleaning Sportswear and Polymer Film Sprinkled With Silver Nanoparticles.
From Self-Cleaning Fabrics via Roland.
Scroll down for more stories in the same category. (Story submitted 2/18/2008)
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 ( 0 )
Related News Stories -
Fabrican Dress Sprayed Directly Onto Model On Coperni Runway
'...that might appeal to women, because by discharging from a few or a few dozen bottles a liquid that immediately set into fabrics... they could have a new creation every time.' - Stanislaw Lem, 1961.
Hip'Safe Airbag For Seniors, From Helite
'Other airbags go off around her torso and pelvis...' - Neal Stephenson, 1992.
iSphere Plastique Fantastique Face Mask Alternative
'Among these were some clad in the insulated space-suits, with their transparent glassite helmets.' - Edmond Hamilton, 1931.
Inkjet-Printed Wearable Solar Cells
Ultra-thin wearable organic photovoltaic material.
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.
Prophetic Offers Lucid Dreaming Halo With Morpheus-1 AI
''Leads trail away from insertion points on her face and wrist... to a lucid dreamer...'
More Like A Tumblebug Than A Motorcycle
'It is about the size and shape of a kitchen stool, gyro-stabilized on a single wheel...'
Tesla Camera-Only Vision Predicted In 1930's SF
'By its means, the machine can see.'
First Ever Proof Of Water On Asteroids
'Yes, strangely enough there was still sufficient water beneath the surface of Vesta.'
Aptera Solar EV More Stylish Than Heinlein Steel Tortoise
'When confronted by hills, or rough terrain, it did not stop, but simply slowed until the task demanded equaled its steady power output.'
Gigantic Space Sunshade Would Fight Global Warming
'...the light of the sun had been polarized by two crossed fields so that no radiation could pass.'
Untethered Spacewalk's 50th Anniversary
'But that space walk of mine wasn't so very amazing.'
ESA Designs Huge Inflatable Moonbase
'It was like being inside a balloon; indeed, that was exactly where he was.'
AlphaGarden Robot Cares For Gardens Better Than Humans
'...a simple clock-set servok with pipe and hose arms.'
Let's Make Slaver Sunflowers! Engineering Plants To Reflect Light
'The mirror-blossom was a terrible weapon.'
TeslaBot Uber Driver (2024) And The Automatic Motorist (1911)
'Robots have worse problems than anybody'
DiffuseBot Uses Generative AI To Invent New Soft Robots
'It embodies several small-scale multiple stampers, apparently for dealing with sheet metal.'
Philips Smart Palm Recognition Smart Deadbolt
'A palm lock must be keyed to one individual's hand shape...'
BMind Smart Mirror from Baracoda
Mirror, mirror, on the wall, who has the greatest wellness of all?
Ballie Your AI Robot Companion From Samsung
Projects your content anywhere you like.
Holobox? Who Doesn't Want A Home Hologram?
'...there appeared standing upon the disk, the image of a man...'
More SF in the News Stories
More Beyond Technovelgy science news stories