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The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
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DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation
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DNA as a data storage medium.

Renato Rebimbas1, Inês Glória1, Júlia Chegão1

  • 1Department of Chemistry, University of Aveiro, Aveiro 3810-193, Portugal.

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Summary
This summary is machine-generated.

DNA data storage offers a sustainable solution for long-term data preservation, overcoming limitations of electronic storage. This review explores DNA

Keywords:
Binary codingDNA data storageDNA synthesisDecodingEncodingPreservationRandom access

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Area of Science:

  • Biotechnology
  • Information Science
  • Materials Science

Background:

  • Conventional electronic data storage faces scalability, longevity, and sustainability challenges.
  • The exponential growth of global digital data necessitates novel storage solutions.
  • Deoxyribonucleic acid (DNA) presents a high-density, stable, and energy-efficient alternative for long-term data archiving.

Purpose of the Study:

  • To provide a comprehensive review of DNA-based data storage technologies.
  • To cover the entire information lifecycle from encoding to physical preservation.
  • To highlight technological advancements and remaining challenges in the field.

Main Methods:

  • Review of current encoding strategies (constrained coding, codec-based systems).
  • Analysis of DNA synthesis technologies (chemical vs. enzymatic approaches).
  • Examination of sequencing platforms and error correction/decoding strategies (Reed-Solomon, Fountain codes, HEDGES, DNA-Aeon).
  • Assessment of random access and DNA preservation methodologies (ex situ, in situ).

Main Results:

  • DNA offers exceptional theoretical information density (455 exabytes/gram) and long-term stability.
  • Various encoding and synthesis methods are advancing, with ongoing efforts to mitigate biochemical limitations.
  • Next-generation sequencing and advanced error correction are improving data retrieval accuracy.
  • Progress in random access and preservation techniques enhances data accessibility and stability.

Conclusions:

  • DNA data storage is a promising technology for scalable, robust, and sustainable long-term data preservation.
  • Key challenges remain in optimizing synthesis, error correction, and random access for practical applications.
  • Continued research and development are crucial for realizing the full potential of DNA-based data storage.