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Posts Tagged ‘nanoparticles’

You Think GMO Is Scary? Nano Tech is Here, In Your Store


Tuesday, 31 July 2012

‘Nanotechnology is measured in billionths of a meter, encompassing all aspects of life from food to medicine, clothing, to space. Imagine hundreds of microcomputers on the width of a strand of hair programmed for specific tasks….in your body. Sound good?

Engineering at a molecular level may be a future corporations’ dream come true, however, nano-particles inside your body have few long-term studies especially when linked to health issues. Despite this new huge income-generating field there is a growing body of toxicological information suggesting that nanotechnology when consumed can cause brain damage (as shown in largemouth bass), and therefore should undergo a full safety assessment.’

Read more: You Think GMO Is Scary? Nano Tech is Here, In Your Store

A Step Toward Minute Factories That Produce Medicine Inside the Body


ScienceDaily (June 27, 2012) — Scientists are reporting an advance toward treating disease with minute capsules containing not drugs — but the DNA and other biological machinery for making the drug. In an article in ACS’ journal Nano Letters, they describe engineering micro- and nano-sized capsules that contain the genetically coded instructions, plus the read-out gear and assembly line for protein synthesis that can be switched on with an external signal.

Scientists are reporting an advance toward treating disease with minute capsules containing not drugs — but the DNA and other biological machinery for making the drug. (Credit: © Benicce / Fotolia)
 
Daniel Anderson and colleagues explain that development of nanoscale production units for protein-based drugs in the human body may provide a new approach for treating disease. These production units could be turned on when needed, producing medicines that cannot be taken orally or are toxic and would harm other parts of the body. Until now, researchers have only done this with live bacteria that were designed to make proteins at disease sites. But unlike bacterial systems, artificial ones are modular, and it is easier to modify them. That’s why Anderson’s group developed an artificial, remotely activated nanoparticle system containing DNA and the other “parts” necessary to make proteins, which are the workhorses of the human cell and are often used as drugs.
 
 

Nanoparticle Coating Makes Paper Magnetic, Waterproof, and Antibacterial


By Rebecca Boyle Posted 04.18.2012 at 4:28 pm

http://www.popsci.com/technology/article/2012-04/nanoparticle-coating-makes-plain-paper-magnetic-and-waterproof

A nanoparticle spray can turn regular paper into superpaper, rendering it waterproof, antimicrobial, magnetic and probably very expensive. Who said paper was an old technology?

Scientists at the Istituto Italiano di Tecnologia in Genoa, Italy, developed a process to cover any cellulose fiber, like paper or fabric, with a reactive coating. It involves combining the fiber molecules with a nanoparticle solution, creating a polymer matrix.