Ultraviolet fluorescence of water and highly diluted aqueous media

Belovolova, L. V.; Glushkov, M. V.; Vinogradov, E. A.; Babintsev, V. A.; Голованов, В. И.

doi:10.3103/s1541308x0901004x

Cited by 31 publications

(20 citation statements)

References 12 publications

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“…In addition to purified water, we used twice frozen water (TFW) (the first freezing to remove fastest-frozen fractions and the second freezing to remove slowest-frozen fractions). As was shown before [9,10], that water was highly sensitive to various exposures and small additions. A number of experiments were performed using the Chernogolovskaya drinking water without additional purification.…”

Section: Methodssupporting

confidence: 55%

“…2) are added to refrozen water, the sharp narrowing of the band and increase in its intensity near 360 nm are typically observed as well [10]. The intensity of the Rayleigh light scattering considerably decreases, as also does the intensity of the Stokes component of the Raman scattering at stretching proton vibrations (this component manifests itself in the region of 280 to 300 nm at the excitation at a wavelength of 260 nm).…”

Section: Manifestation Of the Peak With λ Max ≈ 360 Nm In Different Amentioning

confidence: 89%

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Investigation of the interaction of dissolved gasses with water in highly diluted aqueous media using the ultraviolet fluorescence and light scattering methods

2013

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Light scattering and ultraviolet fluorescence spectra are obtained for highly diluted aqueous solutions with additions of substances that are able to affect the processes with the participation of reactive oxygen species (ROS). A heuristic organization model of the water−gas system with an increased ROS concentration is proposed on the assumption that superoxide anion radical molecules can be adsorbed at interfaces (water−gas, water−solid) and lead to generation of local electric and magnetic fields that contribute to further structuring of water near interfaces. Various exposures (mechanical, acoustic, etc.) to water can result in the separation of the positive and negative charges centers and induce long-time processes of relaxation and further evolution of the system. An increase in the concentration of adsorbed ROS molecules can increase strength of electromagnetic fields near local inhomogeneities and make the system sensitive to low-intensity and low-energy exposures.

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Section: Methodssupporting

confidence: 55%

Section: Manifestation Of the Peak With λ Max ≈ 360 Nm In Different Amentioning

confidence: 89%

Investigation of the interaction of dissolved gasses with water in highly diluted aqueous media using the ultraviolet fluorescence and light scattering methods

2013

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“…It was reported that air-saturated purified water exhibits luminescence in the UV and blue-green regions of the spectrum under ionizing radiation [37], UV light [38,39] and IR radiation [40]. The spectral parameters change even when the source of radiation is removed or switched off [37,38,40,41].…”

Section: The Time Domain Of Watermentioning

confidence: 99%

Possible Further Evidence for the Thixotropic Phenomenon of Water

Verdel

Bukovec

2014

Entropy

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Abstract:In this work we review the literature for possible confirmation of a phenomenon that was proposed to develop when water is left to stand for some time undisturbed in closed vessels. The phenomenon has been termed thixotropy of water due to the weak gel-like behaviour which may develop spontaneously over time where ions and contact with hydrophilic surfaces seem to play important roles. Thixotropy is a property of certain gels and liquids that under normal conditions are highly viscous, whereas during mechanical processing their viscosity diminishes. We found experiments indicating water's self-organizing properties, long-lived inhomogeneities and time-dependent changes in the spectral parameters of aqueous systems. The large-scale inhomogeneities in aqueous solutions seem to occur in a vast number of systems. Long-term spectral changes of aqueous systems were observed even though the source of radiation was switched off or removed. And water was considered to be an active excitable medium in which appropriate conditions for self-organization can be established. In short, the thixotropic phenomenon of water is further indicated by different experimental techniques and may be triggered by large-scale ordering of water in the vicinity of nucleating solutes and hydrophilic surfaces.

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“…Long-time changes in the state of aqueous systems can be revealed by other methods as well. We observed considerable variations in light scattering by water samples at the excitation wavelength λ exc = 260 nm far beyond the measurement errors [2,3,6]. The observations showed that the sharp intensity jumps in pure water were rather rarely detected, but some additions could greatly increase their occurrence frequency.…”

Section: 2mentioning

confidence: 72%

Variations in the water redox potential under ultraviolet irradiation

2013

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Redox potentials are recorded for a series of identical samples of purified and presettled water exposed to ultraviolet radiation. It is found that within a few days the response of the aqueous system to the irradiation undergoes noticeable changes, including stepwise ones. Redox processes with the participation of dissociated molecules of water and atmospheric gases that occur at the measuring electrode surface are discussed. It is concluded that the redox reactions involving dissolved gases change the physicochemical state of the aqueous medium and its sensitivity to various kinds of exposure.

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Ultraviolet fluorescence of water and highly diluted aqueous media

Cited by 31 publications

References 12 publications

Investigation of the interaction of dissolved gasses with water in highly diluted aqueous media using the ultraviolet fluorescence and light scattering methods

Investigation of the interaction of dissolved gasses with water in highly diluted aqueous media using the ultraviolet fluorescence and light scattering methods

Possible Further Evidence for the Thixotropic Phenomenon of Water

Variations in the water redox potential under ultraviolet irradiation

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