Recent Advances in Self-Assembled DNA Nanostructures for Bioimaging

Area of Science:

• Biomedical Engineering
• Molecular Imaging
• Nanotechnology

Background:

• DNA nanotechnology provides precise, programmable platforms for developing advanced bioimaging probes.
• DNA nanostructures offer controllable size, shape, and functionality, ideal for customized nanoprobes.
• Low molecular weight DNA probes exhibit limited stability in physiological conditions.

Purpose of the Study:

• To review the development and applications of DNA nanostructures in bioimaging.
• To highlight recent advances in DNA nanoprobes, including modifications and DNA-PAINT imaging.
• To discuss the potential and challenges of DNA nanostructures for future bioimaging research.

Main Methods:

• Review of existing literature on DNA nanostructures (DNA tiles, DNA origami) and their modifications.
• Analysis of recent advancements in DNA nanoprobes for bioimaging applications.
• Summary of imaging modules for intracellular and cell membrane biomarker imaging.

Main Results:

• Larger DNA nanostructures with defined shapes improve probe stability in physiological environments.
• Established modification methods enhance the properties and performance of DNA nanoprobes.
• DNA nanostructures are effective for intracellular biomolecular imaging and cell membrane biomarker recognition.

Conclusions:

• DNA nanostructures are a powerful and versatile platform for developing sophisticated bioimaging probes.
• Strategic design and modification of DNA nanoprobes are crucial for overcoming stability limitations.
• Further development of DNA nanostructures holds significant promise for advancing biomedical research and diagnostics.