About the cover

April 2015 Volume 7 No 4

DNA nanotubes are attractive scaffolds for the assembly of complex arrays, and there is great interest in controlling their polydispersity and the sequence of rungs along their backbone. Now, Hanadi Sleiman, Gonzalo Cosa and co-workers have devised a solid-state synthesis to produce surface-grafted robust DNA nanotubes. Different rungs can be incorporated in a stepwise manner and each one is individually addressable. As shown on the cover, each rung is tagged with a fluorescent dye to enable visualization of nanotube growth at the single-molecule level.

Article p295

IMAGE: MELANIE BURGER

COVER DESIGN: KAREN MOORE