Abstract
The assembly of DNA machines represents a central effort in DNA nanotechnology. We report on the first DNA rotor system composed of a two-ring catenane. The DNA rotor ring rotates in dictated directions along a wheel, and it occupies three distinct sites. Hg2+/cysteine or pH (H +/OH-) act as fuels or antifuels in positioning the rotor ring. Analysis of the kinetics reveals directional clockwise or anticlockwise population of the target-sites (>85%), and the rotor's direction is controlled by the shortest path on the wheel.
Original language | English |
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Pages (from-to) | 2303-2308 |
Number of pages | 6 |
Journal | Nano Letters |
Volume | 13 |
Issue number | 5 |
DOIs | |
State | Published - 8 May 2013 |
Keywords
- catenane
- DNA
- fluorescence resonance energy transfer (FRET)
- machine
- nanotechnology