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Yakhno T.A.,RAS Institute of Applied Physics | Sanina O.A.,RAS Institute of Applied Physics | Volovik M.G.,Nizhni Novgorod Research Institute of Traumatology and Orthopedics | Sanin A.G.,RAS Institute of Applied Physics | Yakhno V.G.,RAS Institute of Applied Physics
Technical Physics | Year: 2012

The temperature field distribution at the liquid-air interface in drops of water and water solutions drying on a glass substrate is studied with thermal imaging means. It is shown that irrespective of the liquid composition, the circumferential temperature of the drops (along the boundary line) is always higher than the temperature on the top. The temperature field on the surface of the drops is nonstationary and varies chaotically during water evaporation. It is found that the dynamics of histograms for albumin-containing and albumin-free liquids differ. Mechanisms behind the origination of thermocapillary liquid flows and their directivity in the drying drops are discussed. © 2012 Pleiades Publishing, Ltd.


Martusevich A.K.,Nizhni Novgorod Research Institute of Traumatology and Orthopedics | Soloveva A.G.,Nizhni Novgorod Research Institute of Traumatology and Orthopedics | Peretyagin S.P.,Russian Association of Ozone Therapists | Vanin A.F.,RAS Semenov Institute of Chemical Physics
Biophysics (Russian Federation) | Year: 2015

The dynamics of the oxidative metabolism of the blood of healthy donors (n = 30) who were exposed in vitro to nitric oxide in the form of gas or dinitrosyl iron complexes has been investigated. The intensity of lipid peroxidation and the level of malonic dialdehyde in plasma and red blood cells were determined, as well as the plasma antioxidant capacity and the level of superoxide dismutase activity in the blood samples. This study is the first to have characterized the specific features of the response of proand antioxidant systems of the blood to free or bound (into dinitrosyl iron complexes) nitrogen monoxide in vitro; in particular, the gas flow from the Plazon device was shown to have a pronounced prooxidant effect, which was moderately alleviated by tenfold dilution of the NO-containing mixture. The use of an experimental nitric oxide generator that was constructed at the Russian Federal Nuclear Center resulted in minimal pro-oxidant activity, while an aqueous solution of dinitrosyl iron complexes had a moderate antioxidant effect that was manifested as the limitation of lipid peroxidation in blood plasma and an increase of superoxide dismutase activity in erythrocytes. © 2015, Pleiades Publishing, Inc.


Martusevich A.K.,Nizhni Novgorod Research Institute of Traumatology and Orthopedics | Soloveva A.G.,Nizhni Novgorod Research Institute of Traumatology and Orthopedics | Peretyagin S.P.,Nizhni Novgorod Research Institute of Traumatology and Orthopedics | Davyduk A.V.,Nizhni Novgorod Research Institute of Traumatology and Orthopedics
Biophysics (Russian Federation) | Year: 2014

The dynamics of the oxidative and energy metabolism and enzyme systems of blood detoxification were studied in animals with thermal trauma injected with dinitrosyl iron complexes. Dinitrosyl iron complexes were shown to have a positive effect on blood pro- and antioxidant systems in animals experiencing a profound oxidative stress as a result of an experimental thermal injury. In particular, the intensity of lipid peroxidation greatly reduced to reach normal levels, while the antioxidant potential of blood plasma increased significantly. A similar tendency was observed in erythrocyte membranes. It was also established that dinitrosyl iron complexes clearly normalized erythrocyte energy metabolism as soon as by day 3 after trauma. In addition, infusions of dinitrosyl iron complexes markedly stimulated the catalytic activity of aldehyde dehydrogenase in rats with burns. © 2014, Pleiades Publishing, Inc.

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