Chiral Systems Made from DNA.

Area of Science:

• Biochemistry
• Nanotechnology
• Materials Science

Background:

• The inherent chemical structure of deoxyribonucleic acid (DNA) facilitates biological heredity and evolution.
• DNA's structure also drives self-organization into larger assemblies and functional nanostructures.
• Chirality is a fundamental property of nucleic acids with implications across various biological scales.

Purpose of the Study:

• To review the natural organization of DNA into chiral structures.
• To explore recent advancements in synthetic chiral systems using DNA as a building block.
• To discuss the development of functional nanostructures that utilize DNA's chirality.

Main Methods:

• Review of natural nucleic acid chirality across length scales (nucleotide to chromosome).
• Analysis of chiral liquid crystal phases in dense DNA mixtures.
• Summary of DNA self-assembly principles for constructing chiral and complex topological structures.
• Overview of existing and proposed functional nanostructures for probing or harnessing DNA chirality.

Main Results:

• DNA's chemical structure inherently leads to chiral organization at multiple biological levels.
• Dense DNA mixtures can form chiral liquid crystal phases with ongoing research into their origins.
• DNA self-assembly is a powerful principle for creating synthetic chiral nanostructures and complex topologies.
• Emerging applications include plasmonics, spintronics, and biosensing utilizing DNA's chiral properties.

Conclusions:

• The chirality of DNA is a versatile property with significant implications for both natural systems and synthetic nanotechnology.
• DNA's self-assembly capabilities offer a robust platform for designing novel chiral nanostructures.
• Harnessing DNA chirality opens avenues for advanced functional materials and devices in diverse fields.