DNA Origami Tessellations.

Area of Science:

• Nanotechnology
• Materials Science
• Biomolecular Engineering

Background:

• Molecular tessellation seeks to replicate nature's patterns for novel functionalities.
• DNA origami nanostructures are promising for creating tessellations but face limitations in size and complexity.
• Accurate design parameters and tile compatibility are crucial for advanced DNA origami tessellations.

Purpose of the Study:

• To present a general method for creating DNA origami tiles that form micrometer-scale tessellation patterns with nanometer precision.
• To identify and optimize critical design parameters, such as interhelical distance, for improved tile conformation and tessellation.
• To demonstrate the versatility and robustness of the method across various tile geometries and complex tiling patterns.

Main Methods:

• Developed a general design strategy for DNA origami tiles focusing on precise geometric control.
• Identified and finely tuned the interhelical distance (d) as a critical parameter for tile design and tessellation.
• Utilized strategies like reducing monomer symmetry and coassembling different tile geometries to increase pattern complexity.

Main Results:

• Created DNA origami tiles capable of forming single-crystalline lattices from tens to hundreds of square micrometers.
• Demonstrated the method's applicability with 9 tile geometries, 15 unique designs, and 12 tessellation patterns (Platonic, Laves, Archimedean).
• Successfully generated complex tiling patterns by reducing tile symmetry and coassembling diverse tiles, achieving high size and quality.

Conclusions:

• The optimized DNA origami tessellation system offers a robust platform for programmable molecular patterning.
• This advancement holds significant potential for applications in metamaterial engineering, nanoelectronics, and nanolithography.
• The developed method facilitates the creation of large-scale, high-precision molecular structures for advanced material design.