Science Fiction Dictionary
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

 

Military Fabric Like A Smart Second Skin

Next-generation military uniforms may use a fabric that repels chemical and biological agents in one 'mode' and then reverts to a more breathable fabric that is more easily wearable.

The researchers say the fabric will be able to switch reversibly from a highly breathable state to a protective one in response to the presence of the environmental threat without the need for an external control system. In the protective state, the uniform material will block the chemical threat while maintaining a good breathability level. “The uniform will be like a smart second skin that responds to the environment,” says Fornasiero.

UMass Amherst polymer scientists bring expertise in additive-driven assembly processes that bring polymers and nanoparticles together to produce hybrid functional materials to the project. Membrane and layer fabrication will take place in part through the university’s Roll-to-Roll Nanofabrication Laboratory.

The new fabric’s reversibility is due to highly breathable membranes with pores made of a few-nanometer-wide, vertically-aligned carbon nanotubes modified with a functional surface layer designed to respond to the presence of a chemical warfare agent, says Watkins at UMass Amherst. The threat response would be triggered by direct chemical warfare agent attack. The fabric would switch to a protective state by closing the pore entrance or by shedding the contaminated surface layer.

For wearer comfort and safety, high breathability is a critical requirement for protective clothing to prevent heat stress when military personnel are engaged in missions in contaminated environments. To provide high breathability, the new composite material will take advantage of the unique transport properties of carbon nanotube pores, which offer gas transport rates two orders of magnitude faster than any other pore of similar size.

The polymer scientists point out that biological agents such as bacteria and viruses are close to 10 nanometers in size. Because the membrane pores on the uniform are only a few nanometers wide, these membranes will block such agents.

However, chemical agents such as mustard gas and nerve gas can be much smaller and require the membrane pores to be able to react to block that threat. To create a multifunctional membrane, the research team plans to modify the surface of the original prototype carbon nanotube membranes with chemical threat responsive functional groups. These functional groups sense and block the threat like gatekeepers on entrance.

The scientists also plan to develop a second, “shedding” response scheme in which the fabric exfoliates upon recation with a chemical agent. In this way, the fabric will be able to block chemical agents such as sulfur mustard (blister agent), GD and VX nerve agents, toxins such as staphylococcal enterotoxin and biological spores such as anthrax.

Carter at UMass Amherst says, “Mimicking the way real skin responds to threats by exfoliation and shedding of contaminated areas will allow for a dynamic responsive garment, all achieved through controlled chemical reactions in this new advanced fabric.”

Science fiction writers have helped us all dream about fabrics that are either protective - or transformable. In his 1951 novel Foundation, Isaac Asimov wrote about an unstainable plasto-textile, while readers of Neal Stephenson's 1995 novel The Diamond Age recall the fabricates that would actually eject dirt or other unwanted particles from garments.

JG Ballard fans will want me to remember clothing that was designed to transform, like the bio-fabrics from his 1970 short story Say Goodbye to the Wind.

Via UMass.

Scroll down for more stories in the same category. (Story submitted 11/29/2012)

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 ( 1 )

Related News Stories - (" Material ")

MIT Self-Assembling Reprogrammable Materials
'Faster the cubes moved; faster the circle revolved; the pyramids raised themselves, stood bolt upright on their square bases...' - Abraham Merritt, 1920.

Tiny Mining - Extract Precious Industrial Minerals From Your Own Body
'Jim, I saw them reduce four of my doctors and nurses into those little cubes!' - Gene Roddenberry, 1968.

Polyaramide Is Stronger Than Steel, Light As Plastic
'... harnessed by aludur straps' - Leo Zagat, 1943.

Trinitite, Pentagrams And Isaac Asimov
'...And there were horns.' - Isaac Asimov, 1956.

 

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.

 

 

 

 

Science Fiction Timeline
1600-1899
1900-1939
1940's   1950's
1960's   1970's
1980's   1990's
2000's   2010's

Current News

Megachurches Catch Up To Heinlein
'Mars,' the kid repeated, threw Boone a Scout salute and made a sixty-foot leap over the crowd.

Olympus 3D Printing Using Lunar And Martian Materials
The system may be used to create critical infrastructure on the Moon, including landing pads, blast shields, and roads.

Robot Builds Robots From Voxel Subunits
'I was patiently building the most dangerous thing in creation...'

Meltz Neurorehabilitation Robotic Hand
A new type of rehabilitation called "neuro-rehabilitation.

San Francisco Wants ED-209, Or Maybe Robocop
'The Enforcement Droid series 209 is a self-sufficient law enforcement robot...'

Seoul Self-Driving 42dot Bus Unveiled
'Buses without drivers moved close to the curb and stopped at intervals.'

T. Gondii And The Leaders Of The Pack
'... infected males were more than 46 times more likely to become pack leaders than uninfected males.'

'Parastronaut' First Astronaut With Disability From ESA (Updated!)
'He had left Earth to get away from its gravitational field...'

MIT Self-Assembling Reprogrammable Materials
'Faster the cubes moved; faster the circle revolved; the pyramids raised themselves, stood bolt upright on their square bases...'

Mem, The All-Your-Memories, Super Note-Taking App
'Life experience is linearly additive, but the correlation of memory impressions is an unlimited expansion.'

Porcine Fat Cells For 3D-Printed Whole Pork Products
'I grabbed two Syntho-Steaks out of the freezer...'

LANIUS Loitering Drone Munition Scouts And Maps
'... micro-missiles proceeding at walking pace.'

Copilot Software AI Training Sued By Involuntary Contributors
'...we've promised him a generous pension from the royalties.'

Thin Film Dome Protects Cities From Nuclear Blasts
'What fabric can take that kind of a load? Synthetic spider silk.'

Mars Space Weather Alert (MSWA) System
'On the three-dimensional map at weather headquarters... the storm was colored orange.'

Thermite's Robot Firefighter
Possibly worthy of Transformers!

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.