Mar 142006
 

A team of neuroscientists and bioengineers from MIT’s Department of Brain and Cognitive Sciences and Center for Biomedical Engineering have been able to partially restore the vision of rodents whose visual neural pathways had been severed by injecting them with a tiny, biodegradable substrate on which brain cells were able to regrow and reconnect. The research marks the first time that nanotechnology has been used to heal a damaged brain region and restore lost functionality. The results could lead to major advancements in the treatment of traumatic brain and spinal cord injuries and strokes.

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Oct 032005
 

LiveScience.com has published an article regarding the research work done by Joseph Jacobson of the Molecular Machines group at MIT in developing minature robots that mimic the way living cells replicate DNA.

In order for a cell to replicate it’s DNA, enzymes known as polymerases in the nucleus read the structure of the DNA and assemble nucleotides, the basic building block of DNA floating in the nucleoplasm, in the correct order to match the original. In addition to being self-assembling, many DNA polymerases are self-correcting: able to excise incorrect sequences of nucleotides and continue building the chain in the correct order.

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