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Contents: Method for measuring ultraweak chemiluminescence; Physico-chemical nature of ultraweak radiation; Substrata of ultraweak luminescence in cells; Role of antioxidizers in ultraweak luminescence; Ultraweak chemiluminescence of plants; Influence of ionizing radiations on ultraweak luminescence; Ultraweak luminescence during the action of damaging factors; Ultraweak luminescence during malignant growth.
This book addresses the phenomenon of biological autoluminescence (also known as ultraweak photon emission, UPE, biochemiluminescence, or biophotons) and deals with a very broad spectrum of subjects, ranging from basic observational studies to molecular mechanisms, free-radical processes, physics of electron excitation and photon emission, as well as detection techniques. The chapter topics include UPE in plants, animals, and the human body; microorganisms and subcellular structures; and model systems, illustrating its high prevalence. Several sections of the book provide some backstory, with emphasis on methodology, unresolved questions, and existing controversies. The authors raise and discuss complex, potentially divisive aspects: Are there any reasons to assume the existence of non-chemical interaction in biological systems? Can research results in the field of mitogenetic radiation, delayed luminescence, and oxychemiluminescence of model systems, be correctly interpreted? What does the future hold for this area of research? Altogether, this publication gives the reader a thorough overview of biological autoluminescence (UPE, biophotonics) research, making it ideal for students and researchers who are new to the area as well as those who are specializing in it.
The results which have been amassed by now in study of the ultra-weak luminescence of biological systems indicates that the molecular mechanism of this luminescence is of a common nature with the mechanism of luminescence in inverse photochemical reactions. Fundamental to biochemoluminescence is the reaction of oxidation of greatly reduced product (probably an ion-radical) with the subsequent decomposition of peroxide. Storage of peroxides in the living organism is impeded by energy and space barriers, but when these compounds are nevertheless formed by 'short-circuiting' the chain of oxidizing reactions they are enzymatically decomposed with concomitant luminescence.