Patent ID: 8877438

Claim:
A method of making a polynucleotide structure, comprising: providing a first species, a second species, a third species, a fourth species, a fifth species, and a sixth species, wherein the sequence of the first species is different from the sequence of the fourth species; maintaining the first, the second, the third, the fourth, the fifth, and the sixth species in conditions that 1) allow the first, second, and third species to hybridize to form a first column comprising at least a portion of each of the first, second, and third species, wherein the first column comprises at least two double-stranded polynucleotide helices, 2) allow the fourth, fifth, and sixth species to hybridize to form a second column comprising at least a portion of each of the fourth, fifth, and sixth species, wherein the second column comprises at least two double-stranded polynucleotide helices, and 3) allow the first column to hybridize to the second column to provide a polynucleotide structure of a defined length.