Multilayer DNA Origami with Terminal Interfaces That Are Flat and Wide-Area

Area of Science:

• Nanotechnology
• Biotechnology
• Materials Science

Background:

• DNA origami is a nanofabrication method using DNA self-assembly.
• Single-layer DNA origami offers limited spacing for functionalization.
• Multilayer DNA origami allows tighter spacing but can limit surface area.

Purpose of the Study:

• To present a new multilayer DNA origami architecture.
• To maximize the addressable surface area for nanoscale applications.
• To enable dense functionalization through short helices.

Main Methods:

• Developed a novel multilayer DNA origami design.
• Constructed DNA origami with over 200 helices, each 5.3 turns long.
• Utilized cryo-electron microscopy (cryo-EM) and single-particle analysis for characterization.

Main Results:

• Achieved flush terminal interfaces in multilayer DNA origami.
• Demonstrated an architecture with over 200 short helices (5.3 turns each).
• Verified the global structure using advanced imaging techniques.

Conclusions:

• The new architecture significantly increases addressable surface area.
• This design offers enhanced versatility for nanoscale functionalization.
• Optimized DNA origami for high-density applications.