Article

Cell Biophysics

, Volume 6, Issue 1, pp 33-52

Biophoton emission

New evidence for coherence and DNA as source
  • F. A. PoppAffiliated withLaboratory of Biophysics
  • , W. NaglAffiliated withDepartment of Biology, The University
  • , K. H. LiAffiliated withInstitute of Physics, Chinese Academy of Sciences
  • , W. ScholzAffiliated withLaboratory of BiophysicsDepartment of Biology, The University
  • , O. WeingärtnerAffiliated withLaboratory of BiophysicsDepartment of Biology, The University
  • , R. WolfAffiliated withDepartment of Biology, The University

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Abstract

The phenomenon of ultraweak photon emission from living systems was further investigated in order to elucidate the physical properties of this radiation and its possible source. We obtained evidence that the light has a high degree of coherence because of (1) its photon count statistics, (2) its spectral distribution, (3) its decay behavior after exposure to light illumination, and (4) its transparency through optically thick materials. Moroever, DNA is apparently at least an important source, since conformational changes induced with ethidium bromide in vivo are clearly reflected by changes of the photon emission of cells. The physical properties of the radiation are described, taking DNA as an exciplex laser system, where a stable state can be reached far from thermal equilibrium at threshold.

Index Entries

biological photon emission coherent photon emission, from DNA DNA-exciplex laser model emission, of photons from DNA photons, emission from DNA laser, DNA photons as possible