INVENT DNA NANOROBOTS.

U.S scientists create two spiders who work at the molecular level.
u.s scientists have createt robots capable of performing complex functions at the molecular level indenpendently through the insertion of DNA into ist components.
the journal nature published an article explainig the two types of robots of DNA or molecular machines that can move from a biological point of contact to another on a surface  of the genetic code.
the first type is a molecular spider key as you pivide the enviroment where you are, be able to perform  actions independently. its three legs are DNA enzymes that can split a given sequence in a substrate also covered with this source of life.
according to the mewspaper el pais, the machine came to 100 nanometers, a nanometers is a billonth of a meter.

http://librosdelqfb.blogspot.com/2010/05/inventan-nanorobots-de-adn.html