Acoustically shaped DNA-programmable materials.

Area of Science:

• Materials Science
• Nanotechnology
• Biotechnology

Background:

• DNA nanotechnology enables precise nanoscale assembly of components.
• Scaling DNA-assembled nanostructures to macroscale morphologies is a significant challenge.
• Existing methods limit the development of macroscale DNA-based materials and devices.

Purpose of the Study:

• To develop a novel materials fabrication approach for DNA nanotechnology.
• To bridge the gap between nanoscale precision and macroscale form in DNA materials.
• To enable the creation of complexly shaped DNA-programmable nanomaterials.

Main Methods:

• Combined DNA-programmable assembly with actively driven processes controlled by acoustic fields.
• Utilized equilibrium assembly through DNA-encoded interactions for nanoscale order.
• Employed out-of-equilibrium materials formation regulated by acoustic stimulation for macroscale morphology.
• Investigated nucleation, domain fusion, and crystal growth using optical microscopy, electron microscopy, and x-ray scattering.

Main Results:

• Demonstrated a hybrid approach integrating DNA assembly with acoustic field control.
• Achieved prescribed nanoscale order and field-shaped macroscale morphology simultaneously.
• Characterized the effects of acoustic stimulation on material formation processes.
• Successfully fabricated complex macroscale morphologies from DNA-programmable nanomaterials.

Conclusions:

• The developed approach successfully combines DNA assembly with acoustic fields for materials fabrication.
• This method allows for precise control over both nanoscale order and macroscale morphology.
• The findings offer a new pathway for creating complexly shaped DNA-programmable nanomaterials.
• Controlling spatiotemporal characteristics of acoustic fields is key to fabricating advanced DNA materials.