DNA "linker" strands coax nano-sized rods to line up in way unlike any other spontaneous arrangement of rod-shaped objects. The arrangement—with the rods forming "rungs" on ladder-like ribbons could result in the fabrication of new nanostructured materials with desired properties.
At Brookhaven's Center for Functional Nanomaterials, technician Kim Kisslinger uses a variety of polishing techniques, including diamond-encrusted "sandpaper" and focused ion-beam milling, to prepare picture-perfect nanosamples for imaging under transmission electron microscopes.
In the 474th Brookhaven Lecture Oleg Gang discusses how Brookhaven scientists have devised a way of using strands of synthetic DNA attached to the surface of nanoparticles to instruct them to self-assemble into nanoscale structures, clusters, and three-dimensional organizations. Read More