Abstract
A self assembling DNA nanostructure is proposed that will permit expansion and contraction in only one dimension. This actuator restricts two rigid platforms, each in the shape of a hexagonal disk of radius 9 nanometers and of depth 14 nanometers, to move apart from one another with separations between 4 and 18 nanometers. Designed to resist bending, shearing, or torsional stresses, the actuator is composed entirely of DNA and can be self-assembled from two single-stranded DNA plasmids and hundreds of single-stranded DNA oligonucleotides.
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