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Updated: Jan 8, 2026

Genetic Barcoding with Fluorescent Proteins for Multiplexed Applications
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Spatial fluorescence barcode by transiently luminescent DNA beads.

Dandan Tian1, Jiayu Yang1, Linghao Zhang1

  • 1State Key Laboratory of Organic-Inorganic Composites, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China.

Nature Communications
|December 13, 2025
PubMed
Summary
This summary is machine-generated.

A new spatial fluorescence barcode (SFB) platform uses DNA beads for high-plex nucleic acid detection without spectral overlap. This self-resetting probe system offers a scalable and cost-effective solution for molecular diagnostics.

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Area of Science:

  • Molecular Biology
  • Genomics
  • Biotechnology

Background:

  • Multiplexed nucleic acid detection is crucial for diagnostics and spatial genomics.
  • Conventional fluorescence methods face limitations like spectral overlap and restricted encoding capacity.

Purpose of the Study:

  • To introduce a novel spatial fluorescence barcode (SFB) platform for high-plex nucleic acid detection.
  • To overcome limitations of existing fluorescence-based detection methods.

Main Methods:

  • Utilized transiently luminescent DNA beads (TLDBs) for spatial encoding of targets.
  • Employed toehold-mediated strand displacement for target recognition.
  • Integrated autonomous enzymatic resetting for probe reusability.

Main Results:

  • Demonstrated single-color, high-plex readout by decoupling encoding from spectral channels.
  • Achieved robust detection of pathogen nucleic acids and cancer-associated microRNAs.
  • Validated clinical applicability in infected blood and tissue samples.

Conclusions:

  • The SFB platform offers a practical, scalable, and cost-effective solution for high-throughput nucleic acid analysis.
  • SFB integrates monochromatic spatial encoding, simplified probe design, and autonomous reusability.
  • This technology advances molecular diagnostics and spatial genomics applications.