Phys 10. 채 준()
Self-Assembly of Symmetric Finite-Size DNA Nanoarrays - Yan Liu, Yonggang Ke, and Hao Yan
- The one task that Structural DNA nanotechnology has is to control the size of DNA self-assembly
- To produce effectively fixed-size DNA arrays, we need to use the geometric symmetry of DNA arrays with Cm symmetry.
- Because of the geometric symmetry, the higher number m is, the fewer DNA tiles we need.
- In the thesis they show the 5*5 DNA arrays that has C2 symmetry and C4 symmetry
- In C2 symmetry, the array needs 13 tiles instead of 25 tiles.
- In C4 symmetry, the array needs 7 tiles instead of 25 tiles.
- In C4 symmetry, the array is composed of crosslike DNA tiles. A cross-shaped DNA tile has a flexibility under a stress.
- [from the thesis, DOI:10.1021/ja055614o]
- -The Ex. of C2 symmetry. Because of geometric symmetry, the array has the same DNA tiles in it in each a half round.
- what I felt
- -This strategy maybe could help to construct the larger fixed-size DNA Structure than ever before.