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Biotech

Submission + - Nanoparticle Infused Gauze Hits the Market (wired.com)

jackieduvall writes: Cotton gauze has received its first upgrade since World War I. Chemists have infused it with nanoparticles derived from kaolin clay, which somehow give it an amazing ability to stop severe bleeding. It was developed when the Navy approached a team of inorganic chemists at UCSB to solve a problem with QuikClot, a zeolite-based hemostatic agent that got way too hot and caused burns when it came in contact with water or blood. While performing blood clotting tests, they realized that kaolin clay, which has been used as a control for clotting experiments since the 1950's, could also be used as a first aid product.
Toys

Submission + - Polyethylene Bulletproof Vests better than Kevlar

teflonscout writes: When I think of bulletproof vests, the first word that comes to mind is Kevlar. Wired is running a story on Dynema SB61, a bulletproof material that is made of polyethylene. It is a higher grade of the plastic found in Tupperware. The story also mentions the recall of Second Chance bulletproof vests that were made from Zylon, a material that degraded slowly when exposed to moisture. At least one police officer was injured when a bullet penetrated his Zylon vest. Polyethylene is impervious to moisture. The first vests made from this new material are 5mm thick and can stop at 9mm bullet traveling at 1777 feet per second, which is slightly better than other top of the line vests.

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