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Related Experiment Video

Updated: Nov 2, 2025

DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation

DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation

Published on: December 29, 2021

Random access DNA memory using Boolean search in an archival file storage system.

James L Banal¹, Tyson R Shepherd¹, Joseph Berleant¹

¹Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.

Nature Materials

|June 11, 2021

Summary

This summary is machine-generated.

Researchers developed a method for random access of DNA data storage using silica capsules with DNA barcodes. This breakthrough enables efficient file retrieval from massive molecular datasets, addressing a key challenge in DNA data archiving.

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Area of Science:

Biotechnology
Data Storage
Molecular Engineering

Background:

DNA offers ultrahigh-density data storage potential for archival needs.
Current limitations include high synthesis costs and lack of random access to DNA data pools.

Purpose of the Study:

To demonstrate a feasible method for random access of files within large-scale DNA data pools.
To overcome the barrier of accessing specific files without amplification.

Main Methods:

Data-encoding DNA sequences were encapsulated in impervious silica capsules.
Single-stranded DNA barcodes were used to label capsule surfaces, representing file metadata.
Boolean logic was applied to DNA barcodes for direct file set selection.
Fluorescence sorting was employed for random access of image files from a database.

Main Results:

Demonstrated random access of image files from a 2-kilobyte database.
Achieved selection sensitivity of one in 10^6 files.
Showcased a scalable concept for random access in large-scale molecular datasets.

Conclusions:

The developed strategy provides a scalable solution for random access in DNA data storage.
This method enables efficient retrieval of specific files from exabyte-to-yottabyte-scale DNA data pools.
Addresses a critical challenge for realizing the full potential of DNA as an archival storage medium.