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In their experiments, the researchers first cut into a brain structure that conveys signals for vision, causing the small lab animals to be blinded in one eye. They then injected a clear fluid containing chains of amino acids into the damaged area. Once in the environment of the brain, these chains, called peptides, bind to one another, assembling into nano-scale fibers that bridge the gap left by the damage. The mesh of fibers prevents scar tissue from forming and may also encourage cell growth (the researchers are still investigating the mechanisms involved).As a result, nerve cells restored severed connections, allowing 75 percent of the animals to see well enough to detect and turn toward food. The treatment restored around 30,000 nerve connections, compared with 25-30 connections made possible in other experimental treatments, Ellis-Behnke says.
"The principles of physics, as far as I can see, do not speak against the possibility of maneuvering things atom by atom. It is not an attempt to violate any laws; it is something, in principle, that can be done; but in practice, it has not been done because we are too big."
Nanotechnology Di Amerika sendiri, 5 juta orang menderita spinal cord injuries, stroke dan traumatic brain injuries dan total cost yang dikeluarkan adalah $65 milyar setiap tahunnya
salam,kalo dari ilmu tissue engineering yang saya ketahui, para periset sudah berhasil menumbuhkan saraf (ingat: axon-dendrit-neuron), tetapi masih ex-vivo (diluar tubuh ato di bioreaktor). Tahap selanjutnya adalah melakukannya secara in-vivo. Ini yang sampai sekarang masih menjadi tujuan besar bagi para periset di seluruh dunia.