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Journal of Applied Physics / Volume 111 / Issue 9 / ARTICLES / Structural, Mechanical, Thermodynamic, and Optical Properties of Condensed Matter

J. Appl. Phys. 111, 093519 (2012); http://dx.doi.org/10.1063/1.4709420 (14 pages)

The mechanism and properties of bio-photon emission and absorption in protein molecules in living systems

Xiao-feng Pang

Institute of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, China and International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110015, People’s Republic of China

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(Received 6 October 2011; accepted 26 March 2012; published online 7 May 2012)

The mechanism and properties of bio-photon emission and absorption in bio-tissues were studied using Pang’s theory of bio-energy transport, in which the energy spectra of protein molecules are obtained from the discrete dynamic equation. From the energy spectra, it was determined that the protein molecules could both radiate and absorb bio-photons with wavelengths of <3 μm and 5–7 μm, consistent with the energy level transitions of the excitons. These results were consistent with the experimental data; this consisted of infrared absorption data from collagen, bovine serum albumin, the protein-like molecule acetanilide, plasma, and a person’s finger, and the laser-Raman spectra of acidity I-type collagen in the lungs of a mouse, and metabolically active Escherichia coli. We further elucidated the mechanism responsible for the non-thermal biological effects produced by the infrared light absorbed by the bio-tissues, using the above results. No temperature rise was observed; instead, the absorbed infrared light promoted the vibrations of amides as well the transport of the bio-energy from one place to other in the protein molecules, which changed their conformations. These experimental results, therefore, not only confirmed the validity of the mechanism of bio-photon emission, and the newly developed theory of bio-energy transport mentioned above, but also explained the mechanism and properties of the non-thermal biological effects produced by the absorption of infrared light by the living systems.

© 2012 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. THEORETICAL INVESTIGATION
    1. Transport properties of bio-energy released in ATP hydrolysis
    2. Calculation of the quantum energy spectra of protein molecules
    3. Mechanism of bio-photon emission
  3. THE EXPERIMENTAL EVIDENCES
    1. Experimental evidence in collagen and bovine serum albumin systems
    2. Infrared absorption spectra of acetanilide molecular crystals
    3. Raman spectrum of metabolically active E. coli
  4. DISCUSSION
  5. CONCLUSION

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KEYWORDS and PACS

Keywords

biomolecular effects of radiation, bio-optics, excitons, lung, microorganisms, proteins, Raman spectra

PACS

  • 87.15.M-

    Spectra of biomolecules

  • 87.50.wf

    Biophysical mechanisms of interaction

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.4709420

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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