Microfish to deliver nutrients to the body

There are hundreds and thousands of diseases found in humans. Everyday new diseases strike on humans. We can say that we are developing but this development is also destroying humans long life. In ancients ages the age limit was high and people even lived more than hundred years but now a day the average human life is sixty three years. Although back then there were very few cures of diseases were available but still they had pure water, air, vegetables, food etc. But now a days our air is so much polluted, our rivers and streams are filled with dirt.

But as we are decreasing humans age life limit we are also improving in reducing the death rate. In early ages the death rate was too high as there were no medicines or treatments of disease. In early ages more than fifty percent of the children die in their childhood because there were no cures for childhood disease but now a days this problem has been minimized.

There are still many diseases with no cures likes AIDS. There are some diseases like blood clotting in which blood doesn’t circulate in your body and nutrients cannot reach your necessary organs. To overcome this problem and many other problems scientists have discovered an amazing cure.

A team of scientist or nanoengineers has created a microfish that will deliver drugs and nutrients to the organs. It has not been yet implemented in the marked but the scientist are hoping that this microfish can even neutralize toxins in fluid if we use it or load it properly.

When asked about microfish the nanoengineers replied

“We have developed an entirely new method to engineer nature-inspired microscopic swimmers that have complex geometric structures and are smaller than the width of a human hair,” explained Wei Zhu, who co-led the study published in Advanced Materials. “With this method, we can easily integrate different functions inside these tiny robotic swimmers for a broad spectrum of applications.”

To develop a microfish scientist use 3D printer. A high resolution 3D printer allows developers to print hundreds of microfish at once. Microfishs are very small in size. They are 120 microns long and 30 microns thick. As we can develop them with the help of printer so it is easy to change the design of the microfish.

Late the researchers of UC SAN Diego tried to install nanoparticles into certain areas of a bot. They succeeded. But that was not the end of microparticles in microfish. By mixing toxin nanoparticles into microfish the nanoengineers were able to detoxify a fluid. To prove this theory they added polydiacetylene nanoparticles which bind to toxins found in bee venom. When added to a solution containing the toxins, the microfish became fluorescent and turned an increasingly intense red as they bound more and more of the toxin molecules.

When questioned about it they replied

“The neat thing about this experiment is that it shows how the microfish can doubly serve as detoxification systems and as toxin sensors,” said Zhu. But that’s not where the applications of the tiny robofish stop. The researchers envision that they could be used as directed drug delivery systems or in personal therapeutics. “It's my personal hope to further this research to eventually develop surgical microrobots that operate safer and with more precision,” said Jinxing Li, another of the study's authors. 

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Abandoned Mir Diamond Mine, No plan or helcaptor can fly on it

Mir Mine also called Mirny Mine is a former open pit diamond mine located in Mirny, Eastern Siberia, Russia. At the time of its closing in 2004, the mine was 525 meters deep and 1,200 meters across making it the second largest excavated hole in the world, after Bingham Canyon Mine. The hole is so big that airspace above the mine is closed for helicopters because of incidents in which they were sucked in by the downward air flow.

Mining began on 1957, in extremely harsh climate conditions. The Siberian winter lasted seven months which froze the ground, making it hard to mine. During the brief summer months, permafrost would become mud turning the entire mining operation into a land of sludge. Buildings had to be raised on piles, so that they would not sink. The main processing plant had to be built on better ground, found 20 km away from the mine. The winter temperatures were so low that car tires and steel would shatter and oil would freeze. During the winter, workers used jet engines to burn through the layer of permafrost or blasted it with dynamite to get access to the underlying kimberlite. The entire mine had to be covered at night to prevent the machinery from freezing.

During its peak years of operation, the mine produced 10 million carats of diamond per year, of which a relatively high fraction (20%) were of gem quality. This worried De Beers company, which at that time was distributing most of the world's diamonds. The company was forced to buy larger and larger shipments of high-quality Russian diamonds in order to control the market price. For De Beers, Mir was a puzzling mystery. The mine’s enormous output was not consistent with the relatively small size of the mine. By the 1970s, when the Mir should have been producing smaller and smaller quantities of diamonds, the Soviets were producing an increasing quantity of gem diamonds. Finally, in 1976, De Beers requested a tour of the Mir mine to satisfy their curiosity. Permission was granted, but the Russians kept delaying the visit and by the time the team of delegates reached the Mir mine, their visas were about to expire, so that they could only have 20 minutes at the Mir mine. The visit did little to shed light on the mystery of the Mir’s diamond production.

After the collapse of the USSR, in the 1990s, the mine was operated by a few local companies until 2004 when the mine was permanently closed.

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