A Rewritable, Random-Access DNA-Based Storage System

Area of Science:

• Biotechnology
• Data Storage
• Molecular Engineering

Background:

• Existing DNA data storage methods are primarily read-only, requiring full file decoding for fragment retrieval.
• This limits the efficiency and applicability of DNA as a dynamic storage medium.

Purpose of the Study:

• To develop the first DNA-based storage architecture with random access and rewriting capabilities.
• To address the limitations of current read-only DNA storage systems.

Main Methods:

• Development of novel constrained coding techniques for DNA data encoding.
• Implementation of accompanying DNA editing methods for targeted information modification.
• Demonstration using encoded Wikipedia data from US universities.

Main Results:

• Successful implementation of a DNA storage architecture enabling random block access and in-place rewriting.
• Demonstrated data reliability, specificity, and sensitivity.
• Achieved exceptionally high data storage capacity.

Conclusions:

• DNA is a versatile medium suitable for both ultrahigh-density archival and rewritable storage.
• The developed architecture significantly enhances the practicality of DNA data storage.
• This technology paves the way for advanced data management solutions.