A precisely controlled DNA biped walking device

William B. Sherman, Nadrian C. Seeman

Research output: Contribution to journalArticle


We present an experimental realization of a molecular walking motor built from DNA. The device consists of a biped and a well-defined track where it walks. Input DNA strands act as a convenient interface to allow precise control of the biped walking forward or backward. Psoralen molecules are attached to the ends of the feet in synthesis. When irradiated, the psoralen molecules cross-link strands covalently, allowing unambiguous determination of the state of the walker.

Original languageEnglish (US)
Pages (from-to)1203-1207
Number of pages5
JournalNano Letters
Issue number7
StatePublished - Jul 1 2004


ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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