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Cheap way to produce nanoparticles

28.08.2012

The unfortunate experience of students at the University of Central Florida led to an unexpected discovery that the pharmaceutical industry has long been waiting for. PhD students Soroush Shabakhang and Joshua Kaufman have found a way to mass-produce nanoparticles cheaply, which could revolutionize drug manufacturing.

The essence of the discovery is the use of heat to separate thin fibers into identical nanoparticles. Heat simply separates the molten fibers into spherical droplets - like water dripping from a faucet. The discovery was made by chance: scientists have been looking for a way to create ultra-pure glass fiber for optical cables for many years. The students melted and stretched fiberglass in the course of routine ruin experiments, but noticed that instead of a thin, perfect fiberglass cable, microscopic spheres were obtained.

This new non-chemical method allows you to create a large number of identical particles of any size. Thus, for the first time, nanotechnologies can be launched into mass production. In the near future, scientists are going to use the new technology to create nanoparticles capable of delivering drugs. In particular, one of the most promising areas is the creation of particles capable of delivering drugs that kill certain cancer cells.

At the same time, a group of scientists from the Massachusetts Institute of Technology is developing "blanks" for a new technology - special fibers, from which nanoparticles with desired characteristics will be obtained. It is already known that nanoparticles consisting of several materials, as well as hollow spherical nanoparticles, can be created using a new non-chemical method. In addition, additional materials can be attached to the nanospheres, resulting in the production of particles with a complex internal structure. Such particles can be used in various fields. In medicine, theoretically, they can be used to produce vaccines and "targeted" drugs that attack certain pathogens.

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The divine wind was helped by hack-workers-shipbuilders 09.10.2005

As you know, the Japanese word "kamikaze" means "divine wind".

In 1274-1281, a serious threat loomed over Japan: the Mongol Khan Kublai, who then owned China, twice sent a large fleet to the shores of Japan. But both times, a typhoon, not uncommon in these parts, wrecked most of his ships and the invasion attempts failed. These storms, which destroyed a large fleet, were called the "divine wind" by the Japanese.

Archaeologist Randall Sasaki found the remains of 4400 Kublai ships that died in 1281 at the bottom of the Sea of Japan off the island of Takashima. The study of the found ship hulls and their fragments showed that the fleet was unsuitable for sea navigation.

It consisted of flat-bottomed river junks, moreover, made from old boards that had already been in business. No boards are longer than three meters, and most pieces of wood are between 10 centimeters and one meter long. Often, nails to strengthen the boats that crumbled on the move were driven into almost one place, up to 5-6 nails nearby.

So the effect of the typhoon could be less if shipbuilders did not save on material.

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