Synchronization of two assembly processes to build responsive DNA nanostructures

Area of Science:

• Nanotechnology
• Biochemistry
• Materials Science

Background:

• DNA nanotechnology utilizes self-assembly for constructing nanoscale structures.
• Stimulus-responsive materials are crucial for advanced applications.
• Controlling multiple self-assembly processes simultaneously is challenging.

Purpose of the Study:

• To develop a strategy for synchronizing two independent self-assembly processes.
• To assemble stimulus-responsive DNA nanostructures under isothermal conditions.
• To demonstrate positive synergy through proximity-induced synchronization.

Main Methods:

• Employing two hybridization chain reactions (HCRs) for ladderlike DNA nanostructure assembly.
• Utilizing an HCR combined with T-junction cohesion for ringlike DNA nanostructure assembly.
• Bringing these two distinct assembly processes into spatial proximity to induce synchronization.

Main Results:

• Successfully synchronized two distinct DNA self-assembly processes.
• Demonstrated positive synergy between the assembly processes.
• Assembled complex DNA nanostructures, including ladderlike and ringlike forms.

Conclusions:

• Proximity-induced synchronization is a viable strategy for DNA nanostructure assembly.
• This approach enhances the toolbox for DNA nanotechnology.
• The method offers a useful pathway for creating complex, responsive nanostructures.