X-DNA origami-networked core-supported lipid stratum.

Area of Science:

• Biotechnology
• Materials Science
• Nanotechnology

Background:

• DNA hydrogels show promise for in vitro protein production, drug delivery, and cell transplantation.
• Effective nano- and microscale fabrication methods are crucial for advancing DNA hydrogel applications.
• Core-shell structures offer advantages like isolated reaction chambers and scalable production platforms.

Purpose of the Study:

• To develop a novel core-shell nanostructure for DNA hydrogels.
• To utilize lipids as biocompatible shell precursors for enhanced functionality.
• To establish a simple and effective method for fabricating DNA hydrogel nanostructures.

Main Methods:

• Gene-knitted X-shaped DNA (X-DNA) origami was used to create the core gel structure.
• T4 enzymatic ligation was employed for cross-linking DNA molecules.
• Lipid strata were used to encapsulate the DNA gel core, forming a core-shell nanostructure.

Main Results:

• A novel core-shell nanostructure composed of X-DNA origami gel and lipid strata was successfully fabricated.
• The DNA gel core exhibited Brownian motion within the confined lipid shell.
• The fabrication process was simple, relying on DNA cross-linking and lipid encapsulation.

Conclusions:

• The developed core-shell DNA hydrogels represent a significant advancement in nano- and microscale fabrication.
• These structures hold potential for future applications in in vitro protein synthesis, gene delivery, and molecular machinery.
• The biocompatibility and modifiability of lipid shells enhance the versatility of DNA hydrogel systems.