A microrotary motor powered by bacteria

Yuichi Hiratsuka*, Makoto Miyata, Tetsuya Tada, Taro Q.P. Uyeda

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

193 Citations (Scopus)


Biological molecular motors have a number of unique advantages over artificial motors, including efficient conversion of chemical energy into mechanical work and the potential for self-assembly into larger structures, as is seen in muscle sarcomeres and bacterial and eukaryotic flagella. The development of an appropriate interface between such biological materials and synthetic devices should enable us to realize useful hybrid micromachines. Here we describe a microrotary motor composed of a 20-μm-diameter silicon dioxide rotor driven on a silicon track by the gliding bacterium Mycoplasma mobile. This motor is fueled by glucose and inherits some of the properties normally attributed to living systems.

Original languageEnglish
Pages (from-to)13618-13623
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number37
Publication statusPublished - 2006 Sept 12
Externally publishedYes


  • Glucose
  • Micro actuator
  • Motor protein
  • Mycoplasma gliding
  • Nanobiotechnology

ASJC Scopus subject areas

  • General


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