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Supermultiplexed optical imaging and barcoding with engineered polyynes.

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Researchers developed novel polyyne-based materials for optical supermultiplexing, achieving 20 distinct Raman frequencies. This breakthrough enables advanced applications in live-cell imaging and high-throughput diagnostics.

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Area of Science:

  • Photonics
  • Life Sciences
  • Biomedicine

Background:

  • Current optical materials face a 'multiplexing ceiling', limiting advancements in photonics and biomedicine.
  • Optical multiplexing is crucial for applications in life sciences and biomedical research.

Purpose of the Study:

  • To engineer novel polyyne-based materials for overcoming the limitations of existing optical materials in supermultiplexing.
  • To demonstrate the potential of these materials for advanced imaging and data storage applications.

Main Methods:

  • Rational engineering of polyyne conjugation length, bond-selective isotope doping, and end-capping substitution.
  • Functionalization of polyyne probes for specific cellular targeting.
  • Development of combinatorial barcoding strategies for data encoding.

Main Results:

  • Achieved 20 distinct Raman frequencies, termed 'Carbon rainbow', through material engineering.
  • Demonstrated ten-color organelle imaging in living cells with high specificity, sensitivity, and photostability.
  • Realized optical data storage and identification using spectral barcodes, achieving a large number of distinct codes.

Conclusions:

  • Engineered polyyne materials offer a solution to the 'multiplexing ceiling' in optical technologies.
  • These polyynes show significant promise for high-throughput diagnostics, live-cell imaging, and sorting.
  • The developed 'Carbon rainbow' technology advances spectral multiplexing capabilities for various scientific fields.