On the Physics of Ultraweak Bioluminescence and Intercellular Photon Signalling

Letokhov, V. S.; Dobryakov, A. L.

doi:10.1142/9789812705181_0010

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…The extremely long UPE coherence times (10 days 8 , 5 hr 9 ) proposed by some authors seem to be completely off the mark. It is remarkable that, except for a few exceptions [158,124], the physical community did not provided almost any critique of these extraordinary claims.…”

Section: Discussionmentioning

confidence: 99%

Biophotons, coherence and photocount statistics: A critical review

Cifra

Brouder

Nerudová

et al. 2015

Journal of Luminescence

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Biological samples continuously emit ultra-weak photon emission (UPE, or "biophotons") which stems from electronic excited states generated chemically during oxidative metabolism and stress. Thus, UPE can potentially serve as a method for noninvasive diagnostics of oxidative processes or, if discovered, also of other processes capable of electron excitation. While the fundamental generating mechanisms of UPE are fairly elucidated together with their approximate ranges of intensities and spectra, statistical properties of UPE is still a highly challenging topic. Here we review claims about nontrivial statistical properties of UPE, such as coherence and squeezed states of light. After introduction to the necessary theory, we categorize the experimental works of all authors to those with solid, conventional interpretation and those with unconventional and even speculative interpretation. The conclusion of our review is twofold; while the phenomenon of UPE from biological systems can be considered experimentally well established, no reliable evidence for the coherence or nonclassicality of UPE was actually achieved up to now. Furthermore, we propose perspective avenues in the research of statistical properties of biological UPE.

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Section: Discussionmentioning

confidence: 99%

Biophotons, coherence and photocount statistics: A critical review

Cifra

Brouder

Nerudová

et al. 2015

Journal of Luminescence

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“…c Under day light conditions, it may be dark only at very short (230 nm - 280 nm) UV wavelengths [ 35 ]. Historical and very controversial works of Gurwitsch claim that the photon emission from cells lies in the UV region (190 nm - 250 nm) [ 36 ], but there is just little modern evidence even for longer UV wavelengths (280 nm - 390 nm) in biological photon emission [ 37 ].…”

Section: Endnotesmentioning

confidence: 99%

Cell-to-cell signaling through light: just a ghost of chance?

Kučera

Cifra

2013

Cell Commun Signal

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Despite the large number of reports attributing the signaling between detached cell cultures to the electromagnetic phenomena, almost no report so far included a rigorous analysis of the possibility of such signaling.In this paper, we examine the physical feasibility of the electromagnetic communication between cells, especially through light, with regard to the ambient noise illumination. We compare theoretically attainable parameters of communication with experimentally obtained data of the photon emission from cells without a specially pronounced ability of bioluminescence.We show that the weak intensity of the emission together with an unfavorable signal-to-noise ratio, which is typical for natural conditions, represent an important obstacle to the signal detection by cells.

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On the Physics of Ultraweak Bioluminescence and Intercellular Photon Signalling

Cited by 2 publications

References 17 publications

Biophotons, coherence and photocount statistics: A critical review

Biophotons, coherence and photocount statistics: A critical review

Cell-to-cell signaling through light: just a ghost of chance?

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