Massachusetts Institute of Technology
In considering materials that could become the fabrics of the future, scientists have largely dismissed one widely available option: polyethylene.
The stuff of plastic wrap and grocery bags, polyethylene is thin and lightweight, and could keep you cooler than most textiles because it lets heat through rather than trapping it in. But polyethylene would also lock in water and sweat, as it’s unable to draw away and evaporate moisture. This antiwicking property has been a major deterrent to polyethylene’s adoption as a wearable textile.
Now, MIT engineers have spun polyethylene into fibers and yarns designed to wick away moisture. They wove the yarns into silky, lightweight fabrics that absorb and evaporate water more quickly than common textiles such as cotton, nylon, and polyester.
Study: Graphene nanoparticles interfere with the development of anxiety-related behaviors in vertebrates
New research shows that the nanomaterial acts on the excitatory synapses, interfering with the development of anxiety related behaviors in vertebrates.
Effective, specific, with a reversible and non-harmful action: the identikit of the perfect biomaterial seems to correspond to graphene flakes, the subject of a new study carried out by SISSA - International School for Advanced Studies of Trieste, Catalan Institute of Nanoscience and Nanotechnology (ICN2) of Barcelona and the National Graphene Institute of the University of Manchester, in the framework of the European Graphene Flagship project.
This nanomaterial has demonstrated the ability to interact with the functions of the nervous system in vertebrates in a very specific manner, interrupting the building up of a pathological process that leads to anxiety related behavior.
ভবন ভাঙা বন্ধের দাবি ইউএসটিসি কর্তৃপক্ষের bdnews24.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from bdnews24.com Daily Mail and Mail on Sunday newspapers.
Monday, March 8, 2021
On March 5, 2021, the European Commission’s (EC) Scientific Committee on Consumer Safety (SCCS) published its final opinion on copper (nano) and colloidal copper (nano). According to the final opinion, nine manufacturers notified the EC about 36 different products containing nanosized copper. After initial evaluation and a request for additional information, two manufacturers withdrew their products from the notification, and these seven products were excluded from evaluation, resulting in the final evaluation of 29 nanosized copper products produced by seven manufacturers. For three different copper nanomaterials, notification files were provided. The final opinion states that for all three copper nanomaterials, “the notified files were insufficient regarding their characterisation and for conducting a safety evaluation.” All copper nanomaterials claimed to have antimicrobial activity. Most files contained declarations of safety wi