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Updated: Jun 6, 2025

Advanced Confocal Microscopy Techniques to Study Protein-protein Interactions and Kinetics at DNA Lesions
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Ultra-weak photon emission from DNA.

Mariusz Pietruszka1, Marek Marzec2

  • 1Faculty of Natural Sciences, Institute of Biology, Biotechnology, and Environmental Protection, University of Silesia, Katowice, 40-032, Poland. mariusz.pietruszka@us.edu.pl.

Scientific Reports
|November 21, 2024
PubMed
Summary

DNA and other cellular macromolecules may emit light. Researchers observed spontaneous light emission from barley genomic DNA, suggesting DNA is a significant source of ultraweak photon emission in biological systems.

Keywords:
BarleyDynamic entropyHurst exponentInterferenceLight quantumPhotovoltaic currentTime seriespH

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Area of Science:

  • Biophysics
  • Molecular Biology
  • Quantum Biology

Background:

  • Traditionally, cellular macromolecules like DNA, RNA, and proteins were not considered to possess inherent light-emitting properties.
  • Recent research has begun to challenge this notion, indicating spontaneous light emission from nucleic acids under specific physiological conditions.

Purpose of the Study:

  • To investigate the potential for light emission from genomic DNA.
  • To explore the physical mechanisms underlying this phenomenon and its implications for biological systems.

Main Methods:

  • Noninvasive monitoring of barley genomic DNA.
  • Advanced statistical physics analyses to study dynamic entropy fluctuations and fractal dimension oscillations.
  • Measurement of photovoltaic current and photoinduced current.
  • Estimation of DNA's energy production rate at criticality.
  • Development of an interferometer utilizing DNA-water interface emissions.

Main Results:

  • Identification of temperature-induced dynamic entropy fluctuations and fractal dimension oscillations in DNA at a critical organizational threshold.
  • Evidence of non-equilibrium phase transitions and a photovoltaic current jump at zero bias voltage.
  • A direct correlation observed between the amount of DNA and the scaling of photoinduced current.
  • Estimation of DNA's energy production rate at criticality.

Conclusions:

  • Genomic DNA exhibits spontaneous light emission under specific conditions.
  • DNA demonstrates properties indicative of non-equilibrium thermodynamics and energy conversion.
  • These findings position DNA as a potential major contributor to ultraweak photon emission in biological systems.