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. Author manuscript; available in PMC: 2012 Oct 22.
Published in final edited form as: Q Rev Biophys. 2006 Mar 6;38(4):363–371. doi: 10.1017/S0033583505004087

Fig 6.

Fig 6

DNA Nanomechanical Devices. (a) A device based on the B-Z transition of DNA. Addition of Co(NH3)6Cl3 converts a short segment from B-DNA to Z-DNA. (b) The machine cycle of a PX-JX2 device. Removal of PX set strands (I) leaves a naked frame to which JX2 set strands (II) can be added to change state. The PX state can be restored by the same procedures (III) and (IV).