NANOTUBES INSIDE BRAIN WILL CLEAR MECHANISM OF HEARING,SEEING AND COMMAND 

Prof Dr,DRAM,HIV /AIDS,HEPATITIS ,SEX DISEASES & WEAKNESS expert,New Delhi,India, +917838059592

Carbon nanotube electrodes are flexible like wet noodles, but researchers have developed a method to implant them in brain tissue. Implanted wires could help patients with neurological diseases and help scientists explore cognitive processes and develop implants to help people to see, to hear and to control artificial limbs.

              Rice University researchers have invented a device that uses fast-moving fluids to insert flexible, conductive carbon nanotube fibers into the brain, where they can help record the actions of neurons. Eventually, the researchers said, nanotube-based electrodes could help scientists discover the mechanisms behind cognitive processes and create direct interfaces to the brain that will allow patients to see, to hear or to control artificial limbs.The Rice team's microfluidics-based technique promises to improve therapies that rely on electrodes to sense neuronal signals and trigger actions in patients with epilepsy and other conditions.

     The device uses the force applied by fast-moving fluids that gently advance insulated flexible fibers into brain tissue without buckling. This delivery method could replace hard shuttles or stiff, biodegradable sheaths used now to deliver wires into the brain. Both can damage sensitive tissue along the way.The technology is the subject of a paper in the American Chemical Society journal Nano Letters.

 Lab and in vivo experiments showed how the microfluidic devices force a viscous fluid to flow around a thin fiber electrode. The fast-moving fluid slowly pulls the fiber forward through a small aperture that leads to the tissue. Once it crosses into the tissue, tests showed the wire, though highly flexible, stays straight."The electrode is like a cooked noodle that you're trying to put into a bowl of Jell-O," said Rice engineer Jacob Robinson, one of three project leaders. "By itself, it doesn't work. But if you put that noodle under running water, the water pulls the noodle straight."

     The wire moves slowly relative to the speed of the fluid. "The important thing is we're not pushing on the end of the wire or at an individual location," said co-author Caleb Kemere, a Rice electrical and computer engineer who specializes in neuroscience. "We're pulling along the whole cross-section of the electrode and the force is completely distributed.""It's easier to pull things that are flexible than it is to push them," Robinson said."That's why trains are pulled, not pushed," said chemist Matteo Pasquali, a co-author. "That's why you want to put the cart behind the horse."