Paper by Erik D. Demaine
- Erik D. Demaine, Martin L. Demaine, Sándor P. Fekete, Mashhood Ishaque, Eynat Rafalin, Robert T. Schweller, and Diane L. Souvaine, “Staged Self-Assembly: Nanomanufacture of Arbitrary Shapes with O(1) Glues”, in Proceedings of the 13th International Meeting on DNA Computing (DNA 2007), Lecture Notes in Computer Science, volume 4848, Memphis, Tennessee, June 4–8, 2007, pages 1–14.
We introduce staged self-assembly of Wang tiles, where tiles can be
added dynamically in sequence and where intermediate constructions can be
stored for later mixing. This model and its various constraints and
performance measures are motivated by a practical nanofabrication scenario
through protein-based bioengineering. Staging allows us to break through the
traditional lower bounds in tile self-assembly by encoding the shape in the
staging algorithm instead of the tiles. All of our results are based on the
practical assumption that only a constant number of glues, and thus only a
constant number of tiles, can be engineered, as each new glue type requires
significant biochemical research and experiments. Under this assumption,
traditional tile self-assembly cannot even manufacture an
n × n square; in contrast, we show how staged
assembly enables manufacture of arbitrary orthogonal shapes in a variety of
precise formulations of the model.
- This paper is also available from SpringerLink.
- The tile bound of 16 in Table 1 row 5 (arbitrary shape) and in Theorem 5 is incorrect; the correct bound (for the same algorithm) is 52.
- The paper is available in PDF (189k).
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- Related papers:
- StagedAssembly_NACO (Staged Self-Assembly: Nanomanufacture of Arbitrary Shapes with O(1) Glues)
See also other papers by Erik Demaine.
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