Oct 282005
UC Riverside 9,10-dithioanthracene Walker

Credit: L. Bartels

Only last week we learned about a nanoscale car developed by researchers at Rice University. Today BoingBoing points us to this news release from the University of California at Riverside about a molecule that scientists there have developed that can move in a straight line in a manner that mimics human walking. The research team, led by Ludwig Bartels, believe this discovery will help clear a significant hurdle towards the development of molecular memory that could be 1000 times more compact than that found in current storage devices.

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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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