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Train track looking structures are made of two double-strands of DNA

Mesh for Really Small Mosquitoes

<p class="MsoNormal">USING DNA'S NATURAL ABILITY to self-assemble, a team led by Thomas LaBean of Computer Science has been creating nanometer-scale lattices, an early step in developing ultra-tiny electronic devices. &quot;The train track looking structures are made of two double-strands of DNA held together by double-strand DNA bridges that are too thin to see, but we know they are there because the alignments of neighboring tracks are so perfect,&quot; LaBean says. In this picture, taken with an atomic force microscope, each square in the mesh is a little under 20 millionths of a millimeter. <a href="http://www.cs.duke.edu/~thl/">Thom LaBean's Faculty Page</a></p>