title: The density-dependency of dark- and low-background radiation effects on water and water solution properties.
abstract: The effects of dark -(Ev=0 lux) and low-background radiation (BGR), where R<1μRongen/h, on physicochemical properties (specific electrical conductivity, heat fusion, hydrogen peroxide (H2O2), and oxygen contents) of distilled water (DW) and physiological solution (PS) at 4°C and 18°C were studied. The incubation of DW and PS samples in dark and in low BGR (under dark) medium at 4°C and 18°C brings to changes of their physicochemical properties compared with DW and PS samples incubated in light and normal BGR condition (Ev=500-550 lux and R=17 μRoentgen/h). The observed changes of DW and PS properties depended on their initial temperature, density and ionic composition. It is suggested that water molecules dissociation and ions hydration are sensitive to illumination and BGR. Therefore, the cell-bathing medium can be considered as a messenger through which direct and non direct (by modulating of others factors-induced effects) influences of illumination and BGR on cell metabolism are realized.
authors.affiliation: UNESCO-Life Sciences International Postgraduate Educational Center, Yerevan, Armenia.
authors.forename: Naira
authors.initials: N
authors.lastname: Baghdasaryan
authors.forename: Yerazik
authors.initials: Y
authors.lastname: Mikayelyan
authors.forename: Sedrak
authors.initials: S
authors.lastname: Barseghyan
authors.forename: Erna
authors.initials: E
authors.lastname: Dadasyan
authors.forename: Sinerik
authors.initials: S
authors.lastname: Ayrapetyan
mesh_terms: D001417:Background Radiation / Q000009:adverse effects*; D055598:Chemical Phenomena / Q000528:radiation effects; D004553:Electric Conductivity; D005615:Freezing; D006358:Hot Temperature; D006861:Hydrogen Peroxide / Q000737:chemistry; D007700:Kinetics; D010100:Oxygen / Q000737:chemistry; D012996:Solutions; D014867:Water / Q000737:chemistry*
chemical_list: D012996:Solutions; D014867:Water; D006861:Hydrogen Peroxide; D010100:Oxygen