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Related Experiment Video

Updated: Feb 27, 2026

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Photon-HDF5: Open Data Format and Computational Tools for Timestamp-based Single-Molecule Experiments.

Antonino Ingargiola1, Ted Laurence2, Robert Boutelle1

  • 1Dept. of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California, USA.

Proceedings of Spie--The International Society for Optical Engineering
|June 27, 2017
PubMed
Summary
This summary is machine-generated.

A new open data format, Photon-HDF5, addresses challenges in single-molecule fluorescence data sharing. This standardized format enhances data reuse and interoperability across different experimental setups and analysis software.

Keywords:
FCSFRETHDF5SPADfile formatfluorescenceopen datasingle-molecule

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Area of Science:

  • Biophysics
  • Data Science
  • Scientific Instrumentation

Background:

  • Archiving experimental data in public databases is crucial for funding agencies and journals to maximize data reuse and enable new research.
  • Current data formats for photon-counting single-molecule fluorescence experiments are often vendor-specific or custom, hindering data interchange and reuse.
  • The diversity of techniques and setup configurations in single-molecule fluorescence makes establishing a common data standard challenging.

Purpose of the Study:

  • To introduce Photon-HDF5, an open, standardized data format for timestamp-based single-molecule fluorescence experiments.
  • To overcome limitations posed by diverse and proprietary file formats in the field.
  • To promote data sharing, long-term archival, and interoperability within the single-molecule community.

Main Methods:

  • Developed Photon-HDF5 based on the Hierarchical Data Format version 5 (HDF5).
  • Designed Photon-HDF5 to be platform- and language-independent, self-describing, and rich in metadata.
  • Separated raw experimental data (e.g., photon timestamps) from measurement metadata to accommodate various experimental types and configurations.

Main Results:

  • Photon-HDF5 provides a unified structure for diverse single-molecule fluorescence measurements and setup configurations.
  • The format is backward-compatible, allowing for future extensions.
  • Open-source software for creating, converting, and reading Photon-HDF5 files has been developed, with examples in multiple programming languages.

Conclusions:

  • Photon-HDF5 facilitates long-term data archival and enhances interoperability with various analysis software.
  • The adoption of Photon-HDF5 reduces the burden of documenting custom binary formats.
  • Community participation is encouraged to further develop and standardize Photon-HDF5 for broader adoption in single-molecule science.