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DNA storage in thermoresponsive microcapsules for repeated random multiplexed data access.
Bas W A Bögels1,2,3, Bichlien H Nguyen4,5, David Ward5
1Laboratory of Chemical Biology, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.
Nature Nanotechnology
|May 4, 2023
Summary
This study introduces a new method for DNA data storage using thermoresponsive microcapsules. This technology enables efficient, repeated random access to DNA files, overcoming limitations of current DNA storage systems.
Area of Science:
- Biotechnology
- Molecular Biology
- Data Storage
Background:
- DNA offers high density and durability for archival data storage.
- Scalable, random access remains a challenge for DNA-based storage systems.
- Existing methods lack robust, repeated random access capabilities.
Purpose of the Study:
- To develop a method for robust, multiplexed, and repeated random access to DNA data.
- To enhance the efficiency and reduce bias in DNA data retrieval.
- To establish a scalable and sequence-agnostic approach for DNA storage.
Main Methods:
- Utilized thermoresponsive, semipermeable microcapsules containing biotin-functionalized oligonucleotides.
- Implemented thermoconfined polymerase chain reaction (PCR) for compartmentalized amplification.
- Employed fluorescent sorting and microcapsule barcoding for data retrieval.
Main Results:
- Demonstrated superior performance in repeated random access compared to non-compartmentalized DNA storage.
- Reduced amplification bias by tenfold during multiplex PCR.
- Successfully achieved sample pooling and data retrieval using microcapsule barcoding.
Conclusions:
- Thermoresponsive microcapsules provide a scalable solution for repeated random access to DNA data.
- The developed platform enhances the practicality of DNA for archival storage.
- This technology paves the way for more efficient and reliable DNA data storage solutions.
