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Encoding signal propagation on topology-programmed DNA origami
Wei Ji1, Xiewei Xiong1, Mengyao Cao1
1Shanghai Key Laboratory of Green Chemistry and Chemical Processes; Shanghai Center of Brain-inspired Intelligent Materials and Devices; Shanghai Frontiers Science Center of Molecule Intelligent Syntheses; School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China.
Nature Chemistry
|June 17, 2024
Summary
This study introduces a DNA origami system that uses topological transformations for nanoscale signal processing. This programmable nanostructure enables dynamic control over molecular information flow, mimicking cellular systems.
Area of Science:
- Nanotechnology
- Molecular Biology
- DNA Nanostructures
Background:
- Biological systems utilize topological transformations for molecular information processing.
- Understanding nanoscale signal propagation is crucial for synthetic biology.
Purpose of the Study:
- To develop a topology-programmed DNA origami system for nanoscale signal propagation.
- To demonstrate molecular implementation of topological operations for global conformational changes.
Main Methods:
- Utilized 'glue-cut' processes for topological operations on DNA origami.
- Engineered spatially arranged reactive DNA hairpins for signal transmission.
- Investigated signal propagation on varying path lengths, orientations, and curved surfaces.
Main Results:
- Demonstrated global conformational changes in DNA origami structures with defined topological properties (genus, boundary components, orientability).
- Achieved signal propagation across diverse transmission paths on 3D DNA origami.
- Showcased dynamic scaffolds regulating spatial and temporal signal propagation through topological transformations.
Conclusions:
- The developed DNA origami system provides a programmable route for nanoscale signal processing.
- This strategy enables the creation of dynamic nanostructures with controllable global transformations.
- Offers a general method for manufacturing advanced DNA origami for information processing applications.
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