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Rational-designed DNA Nanostructures And Crystals

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posted on 2022-07-20, 18:33 authored by Mengxi ZhengMengxi Zheng

 DNA origami is a powerful method to construct DNA nanostructures. It requires long, single-stranded DNAs. The preparation of such long DNA strands is often quite tedious and has a limited production yield. In contrast, duplex DNAs can be easily prepared via enzymatic reactions in large quantities. Thus, we ask a question: can we design DNA nanostructures in such a way that the two complementary strands can simultaneously fold into the designed structures in the same solution instead of hybridizing with each other to form a DNA duplex? By engineering DNA interaction kinetics, herein, we are able to provide multiple examples to concretely demonstrate a positive answer to this question. The resulting DNA nanostructures have been thoroughly characterized by electrophoresis and atomic force microscopy imaging. The reported strategy is compatible with the DNA cloning method; thus, would provide a convenient way for large-scale production of the designed DNA nanostructures. 

History

Degree Type

  • Doctor of Philosophy

Department

  • Chemistry

Campus location

  • West Lafayette

Advisor/Supervisor/Committee Chair

Chengde Mao

Additional Committee Member 2

Hilkka I Kenttamaa

Additional Committee Member 3

Jianguo Mei

Additional Committee Member 4

Jong H. Choi

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