2. B-Z Device Chengde Mao

3. Right-Handed and Left-Handed DNA

4. A Device Based on the B<-->Z Transition
- Co(NH 3)6+++
+ Co(NH 3)6+++
Mao, C., Sun, W., Shen, Z. & Seeman,N.C. (1999), Nature 397,

5. A Sequence-Dependent Device Hao Yan

6. Seeman, N.C. (2001) NanoLetters 1, 22-26.
Derivation of PX DNA
Seeman, N.C. (2001) NanoLetters 1,

7. Yan, H. , Zhang, X. , Shen, Z. & Seeman, N. C
Yan, H., Zhang, X., Shen, Z. & Seeman, N.C. (2002), Nature 415,

8. Switchable Versions of PX and JX2

9. Machine Cycle of the PX-JX2 Device

10. System to Test the PX-JX2 Device

11. AFM Evidence for Operation
of the PX-JX2 Device
Yan, H., Zhang, X., Shen, Z. & Seeman, N.C. (2002), Nature 415,

12. Inserting a PX-JX2 Device into a 2D Array Baoquan Ding

13. Cassette To Be Inserted
B. Ding & N.C. Seeman, Science 314, (2006).

14. B. Ding & N.C. Seeman, Science 314, 1583-1585 (2006).
Array for Insertion
B. Ding & N.C. Seeman, Science 314, (2006).