1. Abstract: Self-assembly is beginning to be seen as a practical vehicle for computation. The assembly of DNA-based tiles into 2D periodic arrays had been reported several times with a variety of motifs. In our work, one layer of self-assembled DNA 2-D array will be used as the programmable template. Sequence dependent nano-mechanical DNA devices will be inserted into the array. Each device can enter into a bi-stable state, and that this state could be controlled as well by the sequences of DNA. This system can lead to the computation of an arbitrary boolean function or creation of 2D DNA layers satisfying specific properties. A DNA Motif to Insert a Sequence-Driven Device into a DNA Array Baoquan Ding, Nadrian Seeman

2. Structures of of the 2 states of the Sequence-Driven DNA Devices TPX TJX

3. Molecular Models of the 2 states of the Sequence-Driven DNA Devices

4. Simple Model of the Device and the Inserting into Array

5. Model of the Array that Contain Different State Devices

6. Electrophoresis Analysis of the Formation of the Device

7. Electrophoresis Analysis of Operation of the Device

8. TX 2D DNA Array that Works as the Template

9. 2D Array with Protruding Marker Tiles

10. One State of Modified Device that Will be Inserted into Array

11. Template Array that Contain Different States Devices

12. Summary: Sequence-driven DNA devices that will be inserted into 2D DNA array have been constructed. The template array has been designed, and construction and AFM analysis are currently in progress.