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Molkova EA, Pustovoy VI, Stepanova EV, Gorudko IV, Astashev ME, Simakin AV, Sarimov RM, Gudkov SV. pH-Dependent HEWL-AuNPs Interactions: Optical Study. Molecules 2023; 29:82. [PMID: 38202662 PMCID: PMC10779547 DOI: 10.3390/molecules29010082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/21/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Optical methods (spectroscopy, spectrofluorometry, dynamic light scattering, and refractometry) were used to study the change in the state of hen egg-white lysozyme (HEWL), protein molecules, and gold nanoparticles (AuNPs) in aqueous colloids with changes in pH, and the interaction of protein molecules with nanoparticles was also studied. It was shown that changing pH may be the easiest way to control the protein corona on gold nanoparticles. In a colloid of nanoparticles, both in the presence and absence of protein, aggregation-deaggregation, and in a protein colloid, monomerization-dimerization-aggregation are the main processes when pH is changed. A specific point at pH 7.5, where a transition of the colloidal system from one state to another is observed, has been found using all the optical methods mentioned. It has been shown that gold nanoparticles can stabilize HEWL protein molecules at alkaline pH while maintaining enzymatic activity, which can be used in practice. The data obtained in this manuscript allow for the state of HEWL colloids and gold nanoparticles to be monitored using one or two simple and accessible optical methods.
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Affiliation(s)
- Elena A. Molkova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (E.A.M.); (V.I.P.); (M.E.A.); (A.V.S.); (R.M.S.)
| | - Vladimir I. Pustovoy
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (E.A.M.); (V.I.P.); (M.E.A.); (A.V.S.); (R.M.S.)
| | - Evgenia V. Stepanova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (E.A.M.); (V.I.P.); (M.E.A.); (A.V.S.); (R.M.S.)
| | - Irina V. Gorudko
- Physics Department, Belarusian State University, 220030 Minsk, Belarus;
| | - Maxim E. Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (E.A.M.); (V.I.P.); (M.E.A.); (A.V.S.); (R.M.S.)
| | - Alexander V. Simakin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (E.A.M.); (V.I.P.); (M.E.A.); (A.V.S.); (R.M.S.)
| | - Ruslan M. Sarimov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (E.A.M.); (V.I.P.); (M.E.A.); (A.V.S.); (R.M.S.)
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (E.A.M.); (V.I.P.); (M.E.A.); (A.V.S.); (R.M.S.)
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2
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Shkirin AV, Astashev ME, Ignatenko DN, Suyazov NV, Chirikov SN, Kirsanov VV, Pavkin DY, Lobachevsky YP, Gudkov SV. A Monoblock Light-Scattering Milk Fat Percentage and Somatic Cell Count Sensor for Use in Milking Systems. Sensors (Basel) 2023; 23:8618. [PMID: 37896711 PMCID: PMC10610821 DOI: 10.3390/s23208618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023]
Abstract
A monoblock light-scattering sensor, which is capable of measuring the fat content of milk and indicating the excess by which the somatic cell count (SCC) is over the permissible level, has been developed for installation in dairy systems. In order for the sensor to perform measurements when the milking machine is working in the "milk plug" mode, a flow-through unit is designed in the form of a pipe with a lateral cylindrical branch, in which milk accumulates so as to eliminate large bubbles and achieve continuity of the milk flow. The operation of the sensor is based on the registration of the angular intensity distribution of light scattered in the transparent cylindrical segment of the tube branch. A semiconductor laser with a wavelength of 650 nm is used as a light source for determining scattering in milk. The angular distribution of the scattered light intensity (scattering indicatrix) is recorded using an axial photodiode array. The fat content is determined by the average slope of the measured scattering indicatrix in the range of scattering angles 72-162°. The SCC level is estimated from the relative deviation of the forward scatter intensity normalized to the backscatter intensity with respect to uninfected milk. The sensor has been tested on a Yolochka-type milking machine.
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Affiliation(s)
- Alexey V. Shkirin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova st. 38, Moscow 119991, Russia; (M.E.A.); (D.N.I.); (N.V.S.); (S.V.G.)
- Laser Physics Department, National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow 115409, Russia;
| | - Maxim E. Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova st. 38, Moscow 119991, Russia; (M.E.A.); (D.N.I.); (N.V.S.); (S.V.G.)
| | - Dmitry N. Ignatenko
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova st. 38, Moscow 119991, Russia; (M.E.A.); (D.N.I.); (N.V.S.); (S.V.G.)
| | - Nikolai V. Suyazov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova st. 38, Moscow 119991, Russia; (M.E.A.); (D.N.I.); (N.V.S.); (S.V.G.)
| | - Sergey N. Chirikov
- Laser Physics Department, National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow 115409, Russia;
| | - Vladimir V. Kirsanov
- Federal State Budgetary Scientific Institution “Federal Scientific Agroengineering Center VIM”, 1st Institutsky Proezd 5, Moscow 109428, Russia; (V.V.K.); (D.Y.P.); (Y.P.L.)
| | - Dmitriy Y. Pavkin
- Federal State Budgetary Scientific Institution “Federal Scientific Agroengineering Center VIM”, 1st Institutsky Proezd 5, Moscow 109428, Russia; (V.V.K.); (D.Y.P.); (Y.P.L.)
| | - Yakov P. Lobachevsky
- Federal State Budgetary Scientific Institution “Federal Scientific Agroengineering Center VIM”, 1st Institutsky Proezd 5, Moscow 109428, Russia; (V.V.K.); (D.Y.P.); (Y.P.L.)
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova st. 38, Moscow 119991, Russia; (M.E.A.); (D.N.I.); (N.V.S.); (S.V.G.)
- Federal State Budgetary Scientific Institution “Federal Scientific Agroengineering Center VIM”, 1st Institutsky Proezd 5, Moscow 109428, Russia; (V.V.K.); (D.Y.P.); (Y.P.L.)
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, Gagarin av. 23, Nizhny Novgorod 603105, Russia
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Gudkov SV, Gao M, Simakin AV, Baryshev AS, Pobedonostsev RV, Baimler IV, Rebezov MB, Sarimov RM, Astashev ME, Dikovskaya AO, Molkova EA, Kozlov VA, Bunkin NF, Sevostyanov MA, Kolmakov AG, Kaplan MA, Sharapov MG, Ivanov VE, Bruskov VI, Kalinichenko VP, Aiyyzhy KO, Voronov VV, Pimpha N, Li R, Shafeev GA. Laser Ablation-Generated Crystalline Selenium Nanoparticles Prevent Damage of DNA and Proteins Induced by Reactive Oxygen Species and Protect Mice against Injuries Caused by Radiation-Induced Oxidative Stress. Materials (Basel) 2023; 16:5164. [PMID: 37512437 PMCID: PMC10386620 DOI: 10.3390/ma16145164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 06/25/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023]
Abstract
With the help of laser ablation, a technology for obtaining nanosized crystalline selenium particles (SeNPs) has been created. The SeNPs do not exhibit significant toxic properties, in contrast to molecular selenium compounds. The administration of SeNPs can significantly increase the viabilities of SH-SY5Y and PCMF cells after radiation exposure. The introduction of such nanoparticles into the animal body protects proteins and DNA from radiation-induced damage. The number of chromosomal breaks and oxidized proteins decreases in irradiated mice treated with SeNPs. Using hematological tests, it was found that a decrease in radiation-induced leukopenia and thrombocytopenia is observed when selenium nanoparticles are injected into mice before exposure to ionizing radiation. The administration of SeNPs to animals 5 h before radiation exposure in sublethal and lethal doses significantly increases their survival rate. The modification dose factor for animal survival was 1.2. It has been shown that the introduction of selenium nanoparticles significantly normalizes gene expression in the cells of the red bone marrow of mice after exposure to ionizing radiation. Thus, it has been demonstrated that SeNPs are a new gene-protective and radioprotective agent that can significantly reduce the harmful effects of ionizing radiation.
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Affiliation(s)
- Sergey V Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Russian Scientific-Research Institute of Phytopathology of Russian Academy of Sciences, 143050 Big Vyazemy, Russia
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 603022 Nizhny Novgorod, Russia
| | - Meng Gao
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou Medical College, Soochow University, Suzhou 215123, China
| | - Alexander V Simakin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Alexey S Baryshev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Roman V Pobedonostsev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Ilya V Baimler
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Maksim B Rebezov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Ruslan M Sarimov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Maxim E Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center "Push-chino Scientific Center for Biological Research of the Russian Academy of Sciences", Institutskaya St., 3, 142290 Pushchino, Russia
| | - Anastasia O Dikovskaya
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Elena A Molkova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Valery A Kozlov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Str. 5, 105005 Moscow, Russia
| | - Nikolay F Bunkin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Str. 5, 105005 Moscow, Russia
| | - Mikhail A Sevostyanov
- Russian Scientific-Research Institute of Phytopathology of Russian Academy of Sciences, 143050 Big Vyazemy, Russia
- A. A. Baikov Institute of Metallurgy and Materials Science (IMET RAS) of the Russian Academy of Sciences, Leninsky Prospect, 49, 119334 Moscow, Russia
| | - Alexey G Kolmakov
- A. A. Baikov Institute of Metallurgy and Materials Science (IMET RAS) of the Russian Academy of Sciences, Leninsky Prospect, 49, 119334 Moscow, Russia
| | - Mikhail A Kaplan
- A. A. Baikov Institute of Metallurgy and Materials Science (IMET RAS) of the Russian Academy of Sciences, Leninsky Prospect, 49, 119334 Moscow, Russia
| | - Mars G Sharapov
- Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center "Push-chino Scientific Center for Biological Research of the Russian Academy of Sciences", Institutskaya St., 3, 142290 Pushchino, Russia
| | - Vladimir E Ivanov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Institutskaya St. 3, 142290 Pushchino, Russia
| | - Vadim I Bruskov
- Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences, Institutskaya St. 3, 142290 Pushchino, Russia
| | - Valery P Kalinichenko
- Russian Scientific-Research Institute of Phytopathology of Russian Academy of Sciences, 143050 Big Vyazemy, Russia
- Institute of Fertility of Soils of South Russia, 346493 Persianovka, Russia
| | - Kuder O Aiyyzhy
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Valery V Voronov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Nuttaporn Pimpha
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA) 111, Phahonyotin Rd, Klong Luang 12120, Thailand
| | - Ruibin Li
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou Medical College, Soochow University, Suzhou 215123, China
| | - Georgy A Shafeev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
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Gudkov SV, Astashev ME, Baymler IV, Bolotskova PN, Kozlov VA, Simakin AV, Khuong MT, Fomina PA, Bunkin NF. Effects of Low-Frequency Randomly Polarized Electromagnetic Radiation, as Revealed upon Swelling of Polymer Membrane in Water with Different Isotopic Compositions. Materials (Basel) 2023; 16:4622. [PMID: 37444935 DOI: 10.3390/ma16134622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/22/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023]
Abstract
Photoluminescence from the surface of Nafion polymer membrane upon swelling in water under irradiation by electromagnetic waves at a frequency of 100 MHz was studied. In these experiments, natural deionized (DI) water with a deuterium content of 157 ppm and deuterium-depleted water (DDW, deuterium content is 1 ppm) were explored. We have studied for the first time the effect of linearly and randomly polarized low-frequency electromagnetic radiation on the luminescence excitation. To obtain low-frequency electromagnetic radiation with random polarizations, anisotropic solid submicron-sized particles, which result in depolarization effects upon scattering of the initially linearly polarized radiation, were used. We compared two types of colloidal particles: spherically symmetric (isotropic) and elongated (anisotropic). If the radiation is linearly polarized, the intensity of luminescence from the Nafion surface decreases exponentially as the polymer is soaked, and such a behavior is observed both in natural DI water and DDW. When spherically symmetric submicron-sized particles are added to a liquid sample, the luminescence intensity also decreases exponentially upon swelling in both natural DI water and DDW. At the same time, when anisotropic submicron-sized particles are added to DI water, random jumps in the luminescence intensity appear during swelling. At the same time, the exponential decrease in the luminescence intensity is retained upon swelling in DDW. A qualitative theoretical model for the occurrence of random jumps in the luminescence intensity is presented.
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Affiliation(s)
- Sergey V Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Maxim E Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Ilya V Baymler
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Polina N Bolotskova
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Str. 5, 105005 Moscow, Russia
| | - Valery A Kozlov
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Str. 5, 105005 Moscow, Russia
| | - Alexander V Simakin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Minh T Khuong
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Str. 5, 105005 Moscow, Russia
| | - Polina A Fomina
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Str. 5, 105005 Moscow, Russia
| | - Nikolai F Bunkin
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Str. 5, 105005 Moscow, Russia
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Gudkov SV, Li R, Serov DA, Burmistrov DE, Baimler IV, Baryshev AS, Simakin AV, Uvarov OV, Astashev ME, Nefedova NB, Smolentsev SY, Onegov AV, Sevostyanov MA, Kolmakov AG, Kaplan MA, Drozdov A, Tolordava ER, Semenova AA, Lisitsyn AB, Lednev VN. Fluoroplast Doped by Ag 2O Nanoparticles as New Repairing Non-Cytotoxic Antibacterial Coating for Meat Industry. Int J Mol Sci 2023; 24:ijms24010869. [PMID: 36614309 PMCID: PMC9821803 DOI: 10.3390/ijms24010869] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/20/2022] [Accepted: 12/28/2022] [Indexed: 01/05/2023] Open
Abstract
Foodborne infections are an important global health problem due to their high prevalence and potential for severe complications. Bacterial contamination of meat during processing at the enterprise can be a source of foodborne infections. Polymeric coatings with antibacterial properties can be applied to prevent bacterial contamination. A composite coating based on fluoroplast and Ag2O NPs can serve as such a coating. In present study, we, for the first time, created a composite coating based on fluoroplast and Ag2O NPs. Using laser ablation in water, we obtained spherical Ag2O NPs with an average size of 45 nm and a ζ-potential of -32 mV. The resulting Ag2O NPs at concentrations of 0.001-0.1% were transferred into acetone and mixed with a fluoroplast-based varnish. The developed coating made it possible to completely eliminate damage to a Teflon cutting board. The fluoroplast/Ag2O NP coating was free of defects and inhomogeneities at the nano level. The fluoroplast/Ag2O NP composite increased the production of ROS (H2O2, OH radical), 8-oxogualnine in DNA in vitro, and long-lived active forms of proteins. The effect depended on the mass fraction of the added Ag2O NPs. The 0.01-0.1% fluoroplast/NP Ag2O coating exhibited excellent bacteriostatic and bactericidal properties against both Gram-positive and Gram-negative bacteria but did not affect the viability of eukaryotic cells. The developed PTFE/NP Ag2O 0.01-0.1% coating can be used to protect cutting boards from bacterial contamination in the meat processing industry.
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Affiliation(s)
- Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilove St. 38, 119991 Moscow, Russia
- All-Russia Research Institute of Phytopathology of the Russian Academy of Sciences, Institute St., 5, Big Vyazyomy, 143050 Moscow, Russia
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 603105 Nizhny Novgorod, Russia
| | - Ruibin Li
- School for Radiologic and Interdisciplinary Science, Soochow University, Suzhou 215123, China
| | - Dmitriy A. Serov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilove St. 38, 119991 Moscow, Russia
- Institute of Cell Biophysics, Russian Academy of Sciences, Federal Research Center Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya St., 3, 142290 Pushchino, Russia
| | - Dmitriy E. Burmistrov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilove St. 38, 119991 Moscow, Russia
| | - Ilya V. Baimler
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilove St. 38, 119991 Moscow, Russia
| | - Alexey S. Baryshev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilove St. 38, 119991 Moscow, Russia
| | - Alexander V. Simakin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilove St. 38, 119991 Moscow, Russia
| | - Oleg V. Uvarov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilove St. 38, 119991 Moscow, Russia
| | - Maxim E. Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilove St. 38, 119991 Moscow, Russia
- Institute of Cell Biophysics, Russian Academy of Sciences, Federal Research Center Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya St., 3, 142290 Pushchino, Russia
| | - Natalia B. Nefedova
- Institute of Cell Biophysics, Russian Academy of Sciences, Federal Research Center Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya St., 3, 142290 Pushchino, Russia
- Federal State Budget Educational Institution of Higher Education Pushchino State Institute of Natural Science, Science Av. 3, 142290 Pushchino, Russia
| | | | - Andrey V. Onegov
- Mari State University, pl. Lenina, 1, 424001 Yoshkar-Ola, Russia
| | - Mikhail A. Sevostyanov
- All-Russia Research Institute of Phytopathology of the Russian Academy of Sciences, Institute St., 5, Big Vyazyomy, 143050 Moscow, Russia
- A.A. Baikov Institute of Metallurgy and Materials Science (IMET RAS) of the Russian Academy of Sciences, Leninsky Prospect, 49, 119334 Moscow, Russia
| | - Alexey G. Kolmakov
- A.A. Baikov Institute of Metallurgy and Materials Science (IMET RAS) of the Russian Academy of Sciences, Leninsky Prospect, 49, 119334 Moscow, Russia
| | - Mikhail A. Kaplan
- A.A. Baikov Institute of Metallurgy and Materials Science (IMET RAS) of the Russian Academy of Sciences, Leninsky Prospect, 49, 119334 Moscow, Russia
| | - Andrey Drozdov
- Institute for Analytical Instrumentation of the Russian Academy of Sciences, Ulitsa Ivana Chernykh, 31–33, lit. A, 198095 St. Petersburg, Russia
| | - Eteri R. Tolordava
- V. M. Gorbatov Federal Research Center for Food Systems, Russian Academy of Sciences, Talalikhina St., 26, 109316 Moscow, Russia
| | - Anastasia A. Semenova
- V. M. Gorbatov Federal Research Center for Food Systems, Russian Academy of Sciences, Talalikhina St., 26, 109316 Moscow, Russia
| | - Andrey B. Lisitsyn
- V. M. Gorbatov Federal Research Center for Food Systems, Russian Academy of Sciences, Talalikhina St., 26, 109316 Moscow, Russia
| | - Vasily N. Lednev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilove St. 38, 119991 Moscow, Russia
- Correspondence:
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Nagaev EI, Baimler IV, Baryshev AS, Reut VE, Astashev ME. Interaction of Nd:YAG Laser Radiation with Bovine Serum Albumin Solution. BIO Web Conf 2023. [DOI: 10.1051/bioconf/20235702006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
In this paper, the effect of Nd:YAG laser radiation on the properties of the BSA protein is investigated. A solution with a protein concentration of 5 mg/ml was irradiated for 30 minutes. After a 5-minute and 30-minute exposure, absorption spectra were taken, the particle size in the solution was determined by dynamic light scattering (DLS), the refractive index was determined, and fluorescent maps were taken. Raman spectroscopy of proteins was also performed. The results showed that after irradiation, the absorption of the protein solution decreases in the spectral range corresponding to amino acid residues. In DLS experiments, it was shown that the peak corresponding to protein molecules decreases, and the peaks corresponding to large aggregates (>100 nm) grow. Raman spectroscopy has shown that there is a decrease in intensity at a wavelength of 1570 cm-1. There were no significant changes in the refractive indices and the shape of the fluorescent maps. The data suggest that partial denaturation of proteins took place.
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Serov DA, Burmistrov DE, Simakin AV, Astashev ME, Uvarov OV, Tolordava ER, Semenova AA, Lisitsyn AB, Gudkov SV. Composite Coating for the Food Industry Based on Fluoroplast and ZnO-NPs: Physical and Chemical Properties, Antibacterial and Antibiofilm Activity, Cytotoxicity. Nanomaterials (Basel) 2022; 12:4158. [PMID: 36500781 PMCID: PMC9739285 DOI: 10.3390/nano12234158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Bacterial contamination of meat products during its preparation at the enterprise is an important problem for the global food industry. Cutting boards are one of the main sources of infection. In order to solve this problem, the creation of mechanically stable coatings with antibacterial activity is one of the most promising strategies. For such a coating, we developed a composite material based on "liquid" Teflon and zinc oxide nanoparticles (ZnO-NPs). The nanoparticles obtained with laser ablation had a rod-like morphology, an average size of ~60 nm, and a ζ-potential of +30 mV. The polymer composite material was obtained by adding the ZnO-NPs to the polymer matrix at a concentration of 0.001-0.1% using the low-temperature technology developed by the research team. When applying a composite material to a surface with damage, the elimination of defects on a micrometer scale was observed. The effect of the composite material on the generation of reactive oxygen species (H2O2, •OH), 8-oxoguanine in DNA in vitro, and long-lived reactive protein species (LRPS) was evaluated. The composite coating increased the generation of all of the studied compounds by 50-200%. The effect depended on the concentration of added ZnO-NPs. The antibacterial and antibiofilm effects of the Teflon/ZnO NP coating against L. monocytogenes, S. aureus, P. aeruginosa, and S. typhimurium, as well as cytotoxicity against the primary culture of mouse fibroblasts, were studied. The conducted microbiological study showed that the fluoroplast/ZnO-NPs coating has a strong bacteriostatic effect against both Gram-positive and Gram-negative bacteria. In addition, the fluoroplast/ZnO-NPs composite material only showed potential cytotoxicity against primary mammalian cell culture at a concentration of 0.1%. Thus, a composite material has been obtained, the use of which may be promising for the creation of antibacterial coatings in the meat processing industry.
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Affiliation(s)
- Dmitriy A. Serov
- Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Dmitriy E. Burmistrov
- Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Alexander V. Simakin
- Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Maxim E. Astashev
- Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Oleg V. Uvarov
- Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
| | - Eteri R. Tolordava
- V. M. Gorbatov Federal Research Center for Food Systems, Russian Academy of Sciences, 26, Talalikhina St., 109316 Moscow, Russia
| | - Anastasia A. Semenova
- V. M. Gorbatov Federal Research Center for Food Systems, Russian Academy of Sciences, 26, Talalikhina St., 109316 Moscow, Russia
| | - Andrey B. Lisitsyn
- V. M. Gorbatov Federal Research Center for Food Systems, Russian Academy of Sciences, 26, Talalikhina St., 109316 Moscow, Russia
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilova St., 119991 Moscow, Russia
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8
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Serov DA, Baimler IV, Burmistrov DE, Baryshev AS, Yanykin DV, Astashev ME, Simakin AV, Gudkov SV. The Development of New Nanocomposite Polytetrafluoroethylene/Fe 2O 3 NPs to Prevent Bacterial Contamination in Meat Industry. Polymers (Basel) 2022; 14:polym14224880. [PMID: 36433009 PMCID: PMC9695638 DOI: 10.3390/polym14224880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 11/15/2022] Open
Abstract
The bacterial contamination of cutting boards and other equipment in the meat processing industry is one of the key reasons for reducing the shelf life and consumer properties of products. There are two ways to solve this problem. The first option is to create coatings with increased strength in order to prevent the formation of micro damages that are favorable for bacterial growth. The second possibility is to create materials with antimicrobial properties. The use of polytetrafluoroethylene (PTFE) coatings with the addition of metal oxide nanoparticles will allow to the achieving of both strength and bacteriostatic effects at the same time. In the present study, a new coating based on PTFE and Fe2O3 nanoparticles was developed. Fe2O3 nanoparticles were synthesized by laser ablation in water and transferred into acetone using the developed procedures. An acetone-based colloidal solution was mixed with a PTFE-based varnish. Composites with concentrations of Fe2O3 nanoparticles from 0.001-0.1% were synthesized. We studied the effect of the obtained material on the generation of ROS (hydrogen peroxide and hydroxyl radicals), 8-oxoguanine, and long-lived active forms of proteins. It was found that PTFE did not affect the generation of all the studied compounds, and the addition of Fe2O3 nanoparticles increased the generation of H2O2 and hydroxyl radicals by up to 6 and 7 times, respectively. The generation of 8-oxoguanine and long-lived reactive protein species in the presence of PTFE/Fe2O3 NPs at 0.1% increased by 2 and 3 times, respectively. The bacteriostatic and cytotoxic effects of the developed material were studied. PTFE with the addition of Fe2O3 nanoparticles, at a concentration of 0.001% or more, inhibited the growth of E. coli by 2-5 times compared to the control or PTFE without NPs. At the same time, PTFE, even with the addition of 0.1% Fe2O3 nanoparticles, did not significantly impact the survival of eukaryotic cells. It was assumed that the resulting composite material could be used to cover cutting boards and other polymeric surfaces in the meat processing industry.
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9
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Sarimov RM, Nagaev EI, Matveyeva TA, Binhi VN, Burmistrov DE, Serov DA, Astashev ME, Simakin AV, Uvarov OV, Khabatova VV, Akopdzhanov AG, Schimanowskii NL, Gudkov SV. Investigation of Aggregation and Disaggregation of Self-Assembling Nano-Sized Clusters Consisting of Individual Iron Oxide Nanoparticles upon Interaction with HEWL Protein Molecules. Nanomaterials (Basel) 2022; 12:nano12223960. [PMID: 36432246 PMCID: PMC9696017 DOI: 10.3390/nano12223960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/25/2022] [Accepted: 11/08/2022] [Indexed: 05/02/2023]
Abstract
In this paper, iron oxide nanoparticles coated with trisodium citrate were obtained. Nanoparticles self-assembling stable clusters were ~10 and 50-80 nm in size, consisting of NPs 3 nm in size. The stability was controlled by using multi-angle dynamic light scattering and the zeta potential, which was -32 ± 2 mV. Clusters from TSC-IONPs can be destroyed when interacting with a hen egg-white lysozyme. After the destruction of the nanoparticles and proteins, aggregates are formed quickly, within 5-10 min. Their sizes depend on the concentration of the lysozyme and nanoparticles and can reach micron sizes. It is shown that individual protein molecules can be isolated from the formed aggregates under shaking. Such aggregation was observed by several methods: multi-angle dynamic light scattering, optical absorption, fluorescence spectroscopy, TEM, and optical microscopy. It is important to note that the concentrations of NPs at which the protein aggregation took place were also toxic to cells. There was a sharp decrease in the survival of mouse fibroblasts (Fe concentration ~75-100 μM), while the ratio of apoptotic to all dead cells increased. Additionally, at low concentrations of NPs, an increase in cell size was observed.
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Affiliation(s)
- Ruslan M. Sarimov
- Prokhorov General Physics Institute of the Russian Academy of Sciences (GPI RAS), 119991 Moscow, Russia
- Correspondence:
| | - Egor I. Nagaev
- Prokhorov General Physics Institute of the Russian Academy of Sciences (GPI RAS), 119991 Moscow, Russia
| | - Tatiana A. Matveyeva
- Prokhorov General Physics Institute of the Russian Academy of Sciences (GPI RAS), 119991 Moscow, Russia
| | - Vladimir N. Binhi
- Prokhorov General Physics Institute of the Russian Academy of Sciences (GPI RAS), 119991 Moscow, Russia
| | - Dmitriy E. Burmistrov
- Prokhorov General Physics Institute of the Russian Academy of Sciences (GPI RAS), 119991 Moscow, Russia
| | - Dmitriy A. Serov
- Prokhorov General Physics Institute of the Russian Academy of Sciences (GPI RAS), 119991 Moscow, Russia
| | - Maxim E. Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences (GPI RAS), 119991 Moscow, Russia
| | - Alexander V. Simakin
- Prokhorov General Physics Institute of the Russian Academy of Sciences (GPI RAS), 119991 Moscow, Russia
| | - Oleg V. Uvarov
- Prokhorov General Physics Institute of the Russian Academy of Sciences (GPI RAS), 119991 Moscow, Russia
| | - Venera V. Khabatova
- Prokhorov General Physics Institute of the Russian Academy of Sciences (GPI RAS), 119991 Moscow, Russia
| | - Arthur G. Akopdzhanov
- Russian National Pirogov Research Medical University, ul. Ostrovityanova 1, 117997 Moscow, Russia
| | - Nicolai L. Schimanowskii
- Russian National Pirogov Research Medical University, ul. Ostrovityanova 1, 117997 Moscow, Russia
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences (GPI RAS), 119991 Moscow, Russia
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10
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Astashev ME, Konchekov EM, Kolik LV, Gudkov SV. Electric Impedance Spectroscopy in Trees Condition Analysis: Theory and Experiment. Sensors (Basel) 2022; 22:8310. [PMID: 36366006 PMCID: PMC9658313 DOI: 10.3390/s22218310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 10/26/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
Electric impedance spectroscopy is an alternative technology to existing methods that shows promising results in the agro-food industry and plant physiology research. For example, this technology makes it possible to monitor the condition of plants, even in the early stages of development, and to control the quality of finished products. However, the use of electric impedance spectroscopy is often associated with the need to organize special laboratory conditions for measurements. Our aim is to extract information about the state of health of the internal tissues of a plant's branches from impedance measurements. Therefore, we propose a new technique using the device and model developed by us that makes it possible to monitor the condition of tree branch tissues in situ. An apple tree was chosen as the object under study, and the dependence of the impedance of the apple tree branch on the signal frequency and branch length was analyzed. The change in the impedance of an apple tree branch during drying was also analyzed. It was shown that, when a branch dries out, the conductivity of the xylem mainly decreases. The developed technique was also applied to determine the development of the vascular system of an apple tree after grafting. It was shown that the processing of the scion and rootstock sections with the help of cold atmospheric plasma and a plasma-treated solution contributes to a better formation of graft unions.
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11
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Gudkov SV, Serov DA, Astashev ME, Semenova AA, Lisitsyn AB. Ag 2O Nanoparticles as a Candidate for Antimicrobial Compounds of the New Generation. Pharmaceuticals (Basel) 2022; 15:ph15080968. [PMID: 36015116 PMCID: PMC9415021 DOI: 10.3390/ph15080968] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 07/29/2022] [Accepted: 08/04/2022] [Indexed: 12/16/2022] Open
Abstract
Antibiotic resistance in microorganisms is an important problem of modern medicine which can be solved by searching for antimicrobial preparations of the new generation. Nanoparticles (NPs) of metals and their oxides are the most promising candidates for the role of such preparations. In the last few years, the number of studies devoted to the antimicrobial properties of silver oxide NPs have been actively growing. Although the total number of such studies is still not very high, it is quickly increasing. Advantages of silver oxide NPs are the relative easiness of production, low cost, high antibacterial and antifungal activities and low cytotoxicity to eukaryotic cells. This review intends to provide readers with the latest information about the antimicrobial properties of silver oxide NPs: sensitive organisms, mechanisms of action on microorganisms and further prospects for improving the antimicrobial properties.
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Affiliation(s)
- Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
- Correspondence:
| | - Dmitriy A. Serov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Maxim E. Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Anastasia A. Semenova
- V. M. Gorbatov Federal Research Center for Food Systems of Russian Academy of Sciences, 109316 Moscow, Russia
| | - Andrey B. Lisitsyn
- V. M. Gorbatov Federal Research Center for Food Systems of Russian Academy of Sciences, 109316 Moscow, Russia
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12
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Gudkov SV, Astashev ME, Baimler IV, Uvarov OV, Voronov VV, Simakin AV. Laser-Induced Optical Breakdown of an Aqueous Colloidal Solution Containing Terbium Nanoparticles: The Effect of Oxidation of Nanoparticles. J Phys Chem B 2022; 126:5678-5688. [PMID: 35878998 DOI: 10.1021/acs.jpcb.2c02089] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The influence of the number of oxidized terbium nanoparticles on the intensity of physicochemical processes occurring during optical breakdown in aqueous colloidal solutions of nanoparticles has been studied. It is shown that the effect of the number of oxidized terbium nanoparticles on the physicochemical processes occurring during optical breakdown depends significantly on the fluence of laser radiation. At a fluence of less than 100-110 J/cm2, plasma formation processes occur more intensively on less-oxidized (metal) nanoparticles. At a fluence of more than 100-110 J/cm2, the processes of plasma formation during optical breakdown occur much more intensively on more-oxidized nanoparticles. It has been established that the dependence of the rate of laser-induced decomposition of water on the concentration of nanoparticles is two-phase. The rate of generation of water decomposition products increases with an increase in the concentration of nanoparticles up to 109 NP/mL. With a further increase in the concentration of nanoparticles, the rate of generation of water decomposition products decreases. In this case, more than 99% of the decomposition products of water are formed due to the action of plasma, and the share of ultraviolet and ultrasound formed during optical breakdown is approximately 0.5% on each.
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Affiliation(s)
- Sergey V Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova Street, Moscow 119991, Russia
| | - Maxim E Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova Street, Moscow 119991, Russia
| | - Ilya V Baimler
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova Street, Moscow 119991, Russia
| | - Oleg V Uvarov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova Street, Moscow 119991, Russia
| | - Valery V Voronov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova Street, Moscow 119991, Russia
| | - Alexander V Simakin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova Street, Moscow 119991, Russia
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13
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Bunkin NF, Astashev ME, Bolotskova PN, Kozlov VA, Kravchenko AO, Nagaev EI, Okuneva MA. Possibility to Alter Dynamics of Luminescence from Surface of Polymer Membrane with Ultrasonic Waves. Polymers (Basel) 2022; 14:polym14132542. [PMID: 35808587 PMCID: PMC9269195 DOI: 10.3390/polym14132542] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/17/2022] [Accepted: 06/17/2022] [Indexed: 02/04/2023] Open
Abstract
The temporal dynamics of luminescence from the surface of Nafion polymer membranes have been studied. In fact, the polymer membrane was soaked in liquids with different contents of deuterium. The test liquids were ordinary (natural) water (deuterium content equal to 157 ppm) and deuterium-depleted water (deuterium content is equal to 3 ppm). Simultaneously with the excitation of luminescence, the Nafion plate was irradiated with ultrasonic pulses, having a duration of 1 μs. The ultrasonic waves were generated with different repetition rates and amplitudes, and irradiated the surface of Nafion in the geometry of grazing or normal incidence. Luminescence regimes were studied when the membrane was irradiated with one ultrasonic wave (one piezoelectric transducer) or two counter-propagating waves (two piezoelectric transducers). It turned out that ultrasonic waves, which fall normal to the membrane interface, do not affect the dynamics of luminescence. At the same time, in the case of ultrasonic irradiation in the grazing incidence geometry, sharp jumps in the luminescence intensity occur, and the behavior of these jumps substantially depends on the mode of irradiation: one or two piezoelectric transducers. This allows for control of the dynamics of luminescence from the polymer surface. In accordance with this model, the possibility of altering the luminescence dynamics is due to the effect of unwinding the polymer fibers from the surface toward the liquid bulk upon soaking. It is important that such unwinding does not occur in deuterium-depleted water, which was confirmed in a direct experiment with dynamic light scattering from polydisperse aqueous suspensions of Nafion nanometer-sized particles; these suspensions were prepared in ordinary water and deuterium-depleted water. Thus, ultrasonic irradiation affects the dynamics of luminescence only when Nafion is swollen in ordinary water; in the case of deuterium-depleted water this effect is missed.
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Affiliation(s)
- Nikolai F. Bunkin
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Street 5, 105005 Moscow, Russia; (P.N.B.); (V.A.K.); (A.O.K.); (M.A.O.)
- Correspondence:
| | - Maxim E. Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova Street 38, 119991 Moscow, Russia; (M.E.A.); (E.I.N.)
| | - Polina N. Bolotskova
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Street 5, 105005 Moscow, Russia; (P.N.B.); (V.A.K.); (A.O.K.); (M.A.O.)
| | - Valeriy A. Kozlov
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Street 5, 105005 Moscow, Russia; (P.N.B.); (V.A.K.); (A.O.K.); (M.A.O.)
| | - Artem O. Kravchenko
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Street 5, 105005 Moscow, Russia; (P.N.B.); (V.A.K.); (A.O.K.); (M.A.O.)
| | - Egor I. Nagaev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova Street 38, 119991 Moscow, Russia; (M.E.A.); (E.I.N.)
| | - Maria A. Okuneva
- Department of Fundamental Sciences, Bauman Moscow State Technical University, 2-nd Baumanskaya Street 5, 105005 Moscow, Russia; (P.N.B.); (V.A.K.); (A.O.K.); (M.A.O.)
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14
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Konchekov EM, Kolik LV, Danilejko YK, Belov SV, Artem’ev KV, Astashev ME, Pavlik TI, Lukanin VI, Kutyrev AI, Smirnov IG, Gudkov SV. Enhancement of the Plant Grafting Technique with Dielectric Barrier Discharge Cold Atmospheric Plasma and Plasma-Treated Solution. Plants 2022; 11:plants11101373. [PMID: 35631800 PMCID: PMC9146419 DOI: 10.3390/plants11101373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 05/20/2022] [Accepted: 05/20/2022] [Indexed: 11/16/2022]
Abstract
A garden plant grafting technique enhanced by cold plasma (CAP) and plasma-treated solutions (PTS) is described for the first time. It has been shown that CAP created by a dielectric barrier discharge (DBD) and PTS makes it possible to increase the growth of Pyrus communis L. by 35–44%, and the diameter of the root collar by 10–28%. In this case, the electrical resistivity of the graft decreased by 20–48%, which indicated the formation of a more developed vascular system at the rootstock–scion interface. The characteristics of DBD CAP and PTS are described in detail.
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Affiliation(s)
- Evgeny M. Konchekov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
- Correspondence:
| | - Leonid V. Kolik
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Yury K. Danilejko
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Sergey V. Belov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Konstantin V. Artem’ev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Maxim E. Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Tatiana I. Pavlik
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Vladimir I. Lukanin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Alexey I. Kutyrev
- Federal Scientific Agroengineering Center VIM, 109428 Moscow, Russia; (A.I.K.); (I.G.S.)
| | - Igor G. Smirnov
- Federal Scientific Agroengineering Center VIM, 109428 Moscow, Russia; (A.I.K.); (I.G.S.)
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
- Federal Scientific Agroengineering Center VIM, 109428 Moscow, Russia; (A.I.K.); (I.G.S.)
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15
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Chausov DN, Smirnova VV, Burmistrov DE, Sarimov RM, Kurilov AD, Astashev ME, Uvarov OV, Dubinin MV, Kozlov VA, Vedunova MV, Rebezov MB, Semenova AA, Lisitsyn AB, Gudkov SV. Synthesis of a Novel, Biocompatible and Bacteriostatic Borosiloxane Composition with Silver Oxide Nanoparticles. Materials (Basel) 2022; 15:ma15020527. [PMID: 35057245 PMCID: PMC8780406 DOI: 10.3390/ma15020527] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 12/27/2021] [Accepted: 01/07/2022] [Indexed: 01/16/2023]
Abstract
Microbial antibiotic resistance is an important global world health problem. Recently, an interest in nanoparticles (NPs) of silver oxides as compounds with antibacterial potential has significantly increased. From a practical point of view, composites of silver oxide NPs and biocompatible material are of interest. A borosiloxane (BS) can be used as one such material. A composite material combining BS and silver oxide NPs has been synthesized. Composites containing BS have adjustable viscoelastic properties. The silver oxide NPs synthesized by laser ablation have a size of ~65 nm (half-width 60 nm) and an elemental composition of Ag2O. The synthesized material exhibits strong bacteriostatic properties against E. coli at a concentration of nanoparticles of silver oxide more than 0.01%. The bacteriostatic effect depends on the silver oxide NPs concentration in the matrix. The BS/silver oxide NPs have no cytotoxic effect on a eukaryotic cell culture when the concentration of nanoparticles of silver oxide is less than 0.1%. The use of the resulting composite based on BS and silver oxide NPs as a reusable dry disinfectant is due to its low toxicity and bacteriostatic activity and its characteristics are not inferior to the medical alloy nitinol.
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Affiliation(s)
- Denis N. Chausov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (D.N.C.); (V.V.S.); (D.E.B.); (R.M.S.); (A.D.K.); (M.E.A.); (O.V.U.); (V.A.K.); (M.V.V.); (M.B.R.)
| | - Veronika V. Smirnova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (D.N.C.); (V.V.S.); (D.E.B.); (R.M.S.); (A.D.K.); (M.E.A.); (O.V.U.); (V.A.K.); (M.V.V.); (M.B.R.)
| | - Dmitriy E. Burmistrov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (D.N.C.); (V.V.S.); (D.E.B.); (R.M.S.); (A.D.K.); (M.E.A.); (O.V.U.); (V.A.K.); (M.V.V.); (M.B.R.)
| | - Ruslan M. Sarimov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (D.N.C.); (V.V.S.); (D.E.B.); (R.M.S.); (A.D.K.); (M.E.A.); (O.V.U.); (V.A.K.); (M.V.V.); (M.B.R.)
| | - Alexander D. Kurilov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (D.N.C.); (V.V.S.); (D.E.B.); (R.M.S.); (A.D.K.); (M.E.A.); (O.V.U.); (V.A.K.); (M.V.V.); (M.B.R.)
| | - Maxim E. Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (D.N.C.); (V.V.S.); (D.E.B.); (R.M.S.); (A.D.K.); (M.E.A.); (O.V.U.); (V.A.K.); (M.V.V.); (M.B.R.)
| | - Oleg V. Uvarov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (D.N.C.); (V.V.S.); (D.E.B.); (R.M.S.); (A.D.K.); (M.E.A.); (O.V.U.); (V.A.K.); (M.V.V.); (M.B.R.)
| | | | - Valery A. Kozlov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (D.N.C.); (V.V.S.); (D.E.B.); (R.M.S.); (A.D.K.); (M.E.A.); (O.V.U.); (V.A.K.); (M.V.V.); (M.B.R.)
- Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - Maria V. Vedunova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (D.N.C.); (V.V.S.); (D.E.B.); (R.M.S.); (A.D.K.); (M.E.A.); (O.V.U.); (V.A.K.); (M.V.V.); (M.B.R.)
- The Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 603105 Nizhny Novgorod, Russia
| | - Maksim B. Rebezov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (D.N.C.); (V.V.S.); (D.E.B.); (R.M.S.); (A.D.K.); (M.E.A.); (O.V.U.); (V.A.K.); (M.V.V.); (M.B.R.)
- V.M. Gorbatov Federal Research Center for Food Systems, Russian Academy of Sciences, 109316 Moscow, Russia; (A.A.S.); (A.B.L.)
| | - Anastasia A. Semenova
- V.M. Gorbatov Federal Research Center for Food Systems, Russian Academy of Sciences, 109316 Moscow, Russia; (A.A.S.); (A.B.L.)
| | - Andrey B. Lisitsyn
- V.M. Gorbatov Federal Research Center for Food Systems, Russian Academy of Sciences, 109316 Moscow, Russia; (A.A.S.); (A.B.L.)
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (D.N.C.); (V.V.S.); (D.E.B.); (R.M.S.); (A.D.K.); (M.E.A.); (O.V.U.); (V.A.K.); (M.V.V.); (M.B.R.)
- The Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 603105 Nizhny Novgorod, Russia
- Correspondence:
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16
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Chausov DN, Burmistrov DE, Kurilov AD, Bunkin NF, Astashev ME, Simakin AV, Vedunova MV, Gudkov SV. New Organosilicon Composite Based on Borosiloxane and Zinc Oxide Nanoparticles Inhibits Bacterial Growth, but Does Not Have a Toxic Effect on the Development of Animal Eukaryotic Cells. Materials (Basel) 2021; 14:6281. [PMID: 34771805 PMCID: PMC8585151 DOI: 10.3390/ma14216281] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/08/2021] [Accepted: 10/18/2021] [Indexed: 11/30/2022]
Abstract
The present study a comprehensive analysis of the antibacterial properties of a composite material based on borosiloxane and zinc oxide nanoparticles (ZnO NPs). The effect of the polymer matrix and ZnO NPs on the generation of reactive oxygen species, hydroxyl radicals, and long-lived oxidized forms of biomolecules has been studied. All variants of the composites significantly inhibited the division of E. coli bacteria and caused them to detach from the substrate. It was revealed that the surfaces of a composite material based on borosiloxane and ZnO NPs do not inhibit the growth and division of mammalians cells. It is shown in the work that the positive effect of the incorporation of ZnO NPs into borosiloxane can reach 100% or more, provided that the viscoelastic properties of borosiloxane with nanoparticles are retained.
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Affiliation(s)
- Denis N. Chausov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova St. 38, 119991 Moscow, Russia; (D.N.C.); (D.E.B.); (A.D.K.); (N.F.B.); (M.E.A.); (A.V.S.); (M.V.V.)
| | - Dmitriy E. Burmistrov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova St. 38, 119991 Moscow, Russia; (D.N.C.); (D.E.B.); (A.D.K.); (N.F.B.); (M.E.A.); (A.V.S.); (M.V.V.)
| | - Alexander D. Kurilov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova St. 38, 119991 Moscow, Russia; (D.N.C.); (D.E.B.); (A.D.K.); (N.F.B.); (M.E.A.); (A.V.S.); (M.V.V.)
| | - Nikolai F. Bunkin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova St. 38, 119991 Moscow, Russia; (D.N.C.); (D.E.B.); (A.D.K.); (N.F.B.); (M.E.A.); (A.V.S.); (M.V.V.)
- Bauman Moscow State Technical University, Vtoraya Baumanskaya ul. 5, 105005 Moscow, Russia
| | - Maxim E. Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova St. 38, 119991 Moscow, Russia; (D.N.C.); (D.E.B.); (A.D.K.); (N.F.B.); (M.E.A.); (A.V.S.); (M.V.V.)
| | - Alexander V. Simakin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova St. 38, 119991 Moscow, Russia; (D.N.C.); (D.E.B.); (A.D.K.); (N.F.B.); (M.E.A.); (A.V.S.); (M.V.V.)
| | - Maria V. Vedunova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova St. 38, 119991 Moscow, Russia; (D.N.C.); (D.E.B.); (A.D.K.); (N.F.B.); (M.E.A.); (A.V.S.); (M.V.V.)
- Institute of Biology and Biomedicine, Lobachevsky State, University of Nizhni Novgorod, 23 Gagarin Ave., 603950 Nizhny Novgorod, Russia
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilova St. 38, 119991 Moscow, Russia; (D.N.C.); (D.E.B.); (A.D.K.); (N.F.B.); (M.E.A.); (A.V.S.); (M.V.V.)
- Institute of Biology and Biomedicine, Lobachevsky State, University of Nizhni Novgorod, 23 Gagarin Ave., 603950 Nizhny Novgorod, Russia
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17
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Penkov NV, Goltyaev MV, Astashev ME, Serov DA, Moskovskiy MN, Khort DO, Gudkov SV. The Application of Terahertz Time-Domain Spectroscopy to Identification of Potato Late Blight and Fusariosis. Pathogens 2021; 10:pathogens10101336. [PMID: 34684285 PMCID: PMC8537707 DOI: 10.3390/pathogens10101336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/10/2021] [Accepted: 10/14/2021] [Indexed: 11/16/2022] Open
Abstract
Fusarium and late blight (fungal diseases of cereals and potatoes) are among the main causes of crop loss worldwide. A key element of success in the fight against phytopathogens is the timely identification of infected plants and seeds. That is why the development of new methods for identifying phytopathogens is a priority for agriculture. The terahertz time-domain spectroscopy (THz-TDS) is a promising method for assessing the quality of materials. For the first time, we used THz-TDS for assessing the infection of seeds of cereals (oats, wheat and barley) with fusarium and potato tubers of different varieties (Nadezhda and Meteor) with late blight. We evaluated the refractive index, absorption coefficient and complex dielectric permittivity in healthy and infected plants. The presence of phytopathogens on seeds was confirmed by microscopy and PCR. It is shown, that Late blight significantly affected all the studied spectral characteristics. The nature of the changes depended on the variety of the analyzed plants and the localization of the analyzed tissue relative to the focus of infection. Fusarium also significantly affected all the studied spectral characteristics. It was found that THz-TDS method allows you to clearly establish the presence or absence of a phytopathogens, in the case of late blight, to assess the degree and depth of damage to plant tissues.
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Affiliation(s)
- Nikita V. Penkov
- Institute of Cell Biophysics RAS, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.V.P.); (M.V.G.); (D.A.S.)
| | - Mikhail V. Goltyaev
- Institute of Cell Biophysics RAS, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.V.P.); (M.V.G.); (D.A.S.)
| | - Maxim E. Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Dmitry A. Serov
- Institute of Cell Biophysics RAS, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia; (N.V.P.); (M.V.G.); (D.A.S.)
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia;
| | - Maxim N. Moskovskiy
- Federal State Budgetary Scientific Institution “Federal Scientific Agroengineering Center VIM”, 109428 Moscow, Russia; (M.N.M.); (D.O.K.)
| | - Dmitriy O. Khort
- Federal State Budgetary Scientific Institution “Federal Scientific Agroengineering Center VIM”, 109428 Moscow, Russia; (M.N.M.); (D.O.K.)
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia;
- Correspondence:
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18
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Danilejko YK, Belov SV, Egorov AB, Lukanin VI, Sidorov VA, Apasheva LM, Dushkov VY, Budnik MI, Belyakov AM, Kulik KN, Validov S, Yanykin DV, Astashev ME, Sarimov RM, Kalinichenko VP, Glinushkin AP, Gudkov SV. Increase of Productivity and Neutralization of Pathological Processes in Plants of Grain and Fruit Crops with the Help of Aqueous Solutions Activated by Plasma of High-Frequency Glow Discharge. Plants (Basel) 2021; 10:plants10102161. [PMID: 34685970 PMCID: PMC8539132 DOI: 10.3390/plants10102161] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/07/2021] [Accepted: 10/08/2021] [Indexed: 11/22/2022]
Abstract
In this work, we, for the first time, manufactured a plasma-chemical reactor operating at a frequency of 0.11 MHz. The reactor allows for the activation of large volumes of liquids in a short time. The physicochemical properties of activated liquids (concentration of hydrogen peroxide, nitrate anions, redox potential, electrical conductivity, pH, concentration of dissolved gases) are characterized in detail. Antifungal activity of aqueous solutions activated by a glow discharge has been investigated. It was shown that aqueous solutions activated by a glow discharge significantly reduce the degree of presence of phytopathogens and their effect on the germination of such seeds. Seeds of cereals (sorghum and barley) and fruit (strawberries) crops were studied. The greatest positive effect was found in the treatment of sorghum seeds. Moreover, laboratory tests have shown a significant increase in sorghum drought tolerance. The effectiveness of the use of glow-discharge-activated aqueous solutions was shown during a field experiment, which was set up in the saline semi-desert of the Northern Caspian region. Thus, the technology developed by us makes it possible to carry out the activation of aqueous solutions on an industrial scale. Water activated by a glow discharge exhibits antifungicidal activity and significantly accelerates the development of the grain and fruit crops we studied. In the case of sorghum culture, glow-discharge-activated water significantly increases drought resistance.
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Affiliation(s)
- Yuri K. Danilejko
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (Y.K.D.); (S.V.B.); (A.B.E.); (V.I.L.); (V.A.S.); (D.V.Y.); (M.E.A.); (R.M.S.)
| | - Sergey V. Belov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (Y.K.D.); (S.V.B.); (A.B.E.); (V.I.L.); (V.A.S.); (D.V.Y.); (M.E.A.); (R.M.S.)
| | - Alexey B. Egorov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (Y.K.D.); (S.V.B.); (A.B.E.); (V.I.L.); (V.A.S.); (D.V.Y.); (M.E.A.); (R.M.S.)
| | - Vladimir I. Lukanin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (Y.K.D.); (S.V.B.); (A.B.E.); (V.I.L.); (V.A.S.); (D.V.Y.); (M.E.A.); (R.M.S.)
| | - Vladimir A. Sidorov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (Y.K.D.); (S.V.B.); (A.B.E.); (V.I.L.); (V.A.S.); (D.V.Y.); (M.E.A.); (R.M.S.)
| | - Lyubov M. Apasheva
- Semenov Institute of Chemical Physics of Russian Academy of Sciences, 119991 Moscow, Russia; (L.M.A.); (V.Y.D.); (M.I.B.)
| | - Vladimir Y. Dushkov
- Semenov Institute of Chemical Physics of Russian Academy of Sciences, 119991 Moscow, Russia; (L.M.A.); (V.Y.D.); (M.I.B.)
| | - Mikhail I. Budnik
- Semenov Institute of Chemical Physics of Russian Academy of Sciences, 119991 Moscow, Russia; (L.M.A.); (V.Y.D.); (M.I.B.)
| | - Alexander M. Belyakov
- Federal Scientific Center for Agroecology, Integrated Land Reclamation and Protective Afforestation of the Russian Academy of Sciences, 400062 Volgograd, Russia; (A.M.B.); (K.N.K.)
| | - Konstantin N. Kulik
- Federal Scientific Center for Agroecology, Integrated Land Reclamation and Protective Afforestation of the Russian Academy of Sciences, 400062 Volgograd, Russia; (A.M.B.); (K.N.K.)
| | - Shamil Validov
- Federal Research Center Kazan Scientific Center of Russian Academy of Sciences, 420008 Kazan, Russia;
| | - Denis V. Yanykin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (Y.K.D.); (S.V.B.); (A.B.E.); (V.I.L.); (V.A.S.); (D.V.Y.); (M.E.A.); (R.M.S.)
| | - Maxim E. Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (Y.K.D.); (S.V.B.); (A.B.E.); (V.I.L.); (V.A.S.); (D.V.Y.); (M.E.A.); (R.M.S.)
| | - Ruslan M. Sarimov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (Y.K.D.); (S.V.B.); (A.B.E.); (V.I.L.); (V.A.S.); (D.V.Y.); (M.E.A.); (R.M.S.)
| | - Valery P. Kalinichenko
- All-Russian Phytopathology Research Institute, 143050 Big Vyazyomy, Russia; (V.P.K.); (A.P.G.)
| | - Alexey P. Glinushkin
- All-Russian Phytopathology Research Institute, 143050 Big Vyazyomy, Russia; (V.P.K.); (A.P.G.)
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (Y.K.D.); (S.V.B.); (A.B.E.); (V.I.L.); (V.A.S.); (D.V.Y.); (M.E.A.); (R.M.S.)
- Correspondence:
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19
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Safronova VG, Vulfius CA, Astashev ME, Tikhonova IV, Serov DA, Jirova EA, Pershina EV, Senko DA, Zhmak MN, Kasheverov IE, Tsetlin VI. α9α10 nicotinic acetylcholine receptors regulate murine bone marrow granulocyte functions. Immunobiology 2020; 226:152047. [PMID: 33340828 DOI: 10.1016/j.imbio.2020.152047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/16/2020] [Accepted: 11/29/2020] [Indexed: 02/06/2023]
Abstract
Polymorphonuclear neutrophilic granulocytes (PMNs) are extremely important in defense of the organism against infections and in inflammatory processes including neuroinflammation and pain sensation. Different subtypes of nicotinic acetylcholine receptors (nAChRs) are involved in modulation of PMN activities. Earlier we determined expression of α2-7, α9, β3, β4 subunits and regulatory role of α7 and α3β2 nAChR subtypes in functions of inflammatory PMNs. Other authors detected mRNA of α9 subunit in bone marrow neutrophils (BM-PMNs). Murine BM-PMNs coming out from the bone marrow, where they develop, to blood were characterized as mature. There was no data for α10 and for the presence of functionally active α9α10 nAChRs in BM-PMNs. Here we detected for the first time mRNA expression of the α10 nAChR subunit in BM-PMNs and confirmed the expression of mRNA for α9 nAChR. With the help of α-conotoxins RgIA and Vc1.1, highly selective antagonists of α9α10 nAChRs, we have revealed participation of α9 and/or α9α10 nAChRs in regulation of cytosolic Ca2+ concentration, cell adhesion, and in generation of reactive oxygen species (ROS). Nicotine, choline, RgIA, and Vc1.1 induced Ca2+ transients in BM-PMNs, enhanced cell adhesiveness and decreased production of ROS indicating involvement of α9, possibly co-assembled with α10, nAChRs in the BM-PMN activity for recruitment and cytotoxicity.
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Affiliation(s)
- Valentina G Safronova
- Institute of Cell Biophysics, Russian Academy of Sciences, Institutskaya St., 3, 142290 Pushchino, Russia.
| | - Catherine A Vulfius
- Institute of Cell Biophysics, Russian Academy of Sciences, Institutskaya St., 3, 142290 Pushchino, Russia.
| | - Maxim E Astashev
- Institute of Cell Biophysics, Russian Academy of Sciences, Institutskaya St., 3, 142290 Pushchino, Russia.
| | - Irina V Tikhonova
- Institute of Cell Biophysics, Russian Academy of Sciences, Institutskaya St., 3, 142290 Pushchino, Russia.
| | - Dmitriy A Serov
- Institute of Cell Biophysics, Russian Academy of Sciences, Institutskaya St., 3, 142290 Pushchino, Russia.
| | - Elina A Jirova
- Institute of Cell Biophysics, Russian Academy of Sciences, Institutskaya St., 3, 142290 Pushchino, Russia.
| | - Ekaterina V Pershina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Institutskaya St., 3, 142290 Pushchino, Russia.
| | - Dmitry A Senko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya St., 16/10, 117997 Moscow, Russia; Lomonosov Moscow State University, 119991 Moscow, Russia.
| | - Maxim N Zhmak
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya St., 16/10, 117997 Moscow, Russia.
| | - Igor E Kasheverov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya St., 16/10, 117997 Moscow, Russia.
| | - Victor I Tsetlin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya St., 16/10, 117997 Moscow, Russia.
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20
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Gudkov SV, Simakin AV, Bunkin NF, Shafeev GA, Astashev ME, Glinushkin AP, Grinberg MA, Vodeneev VA. Development and application of photoconversion fluoropolymer films for greenhouses located at high or polar latitudes. J Photochem Photobiol B 2020; 213:112056. [PMID: 33142218 DOI: 10.1016/j.jphotobiol.2020.112056] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 09/25/2020] [Accepted: 10/13/2020] [Indexed: 11/28/2022]
Abstract
To convert and store energy in the process of photosynthesis, plants primarily use quanta of the red and blue parts of the spectrum. At high latitudes, the average daily intensity of red and blue parts of the spectrum is not very high; for many crops cultivated under greenhouse conditions, it reaches the sufficient level only on clear summer days. The problem of insufficient illumination in greenhouses is usually solved with artificial light sources. This article describes a technology for the manufacture of photoconversion fluoropolymer films for greenhouses. The fluoropolymer films described in the paper make use of original gold nanoparticles and nanoparticles with fluorescence in the blue or red region of the spectrum. In the polymer film, nanoparticles aggregate in the form of "beads", which enhances the field of the optical wave. The film photoconverts UV and violet light into blue and red light. Gold nanoparticles also partially convert energy in the green region of the spectrum (not used by plants) into heat, which is also important for agriculture at high latitudes. In addition, impregnation of gold nanoparticles into fluoropolymer significantly increases the lifetime of the film. The films described in the paper can significantly increase the productivity of greenhouses located at high latitudes. Plants cultivated under the films have more chlorophyll and a higher intensity of photosynthesis - although their system of distance stress signals is, to a certain degree, suppressed.
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Affiliation(s)
- Sergey V Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St, Moscow 119991, Russia.
| | - Alexander V Simakin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St, Moscow 119991, Russia
| | - Nikolay F Bunkin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St, Moscow 119991, Russia; Bauman Moscow State Technical University, 2-nd Baumanskaya str. 5, Moscow 105005, Russia
| | - Georgy A Shafeev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St, Moscow 119991, Russia
| | - Maxim E Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova St, Moscow 119991, Russia; Institute of Cell Biophysics of the Russian Academy of Sciences, 3 Institutskaya St., Pushchino, Moscow 119991, Russia
| | - Alexey P Glinushkin
- All-Russian Research Institute of Phytopatology, ul. Institut 5, Bolshie Vyazemy, Moscow 143050, Russia
| | - Marina A Grinberg
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Ave, Nizhny Novgorod 603950, Russia
| | - Vladimir A Vodeneev
- Institute of Biology and Biomedicine, Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Ave, Nizhny Novgorod 603950, Russia
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21
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Gudkov S, Shafeev GA, Glinushkin AP, Shkirin AV, Barmina EV, Rakov II, Simakin AV, Kislov AV, Astashev ME, Vodeneev VA, Kalinitchenko VP. Production and Use of Selenium Nanoparticles as Fertilizers. ACS Omega 2020; 5:17767-17774. [PMID: 32715263 PMCID: PMC7377367 DOI: 10.1021/acsomega.0c02448] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 06/26/2020] [Indexed: 05/17/2023]
Abstract
The synergy problem was discussed linking Se nanoparticles and different soil fertility agents. Se zero-valent-state nanoparticles were investigated as fertilizers and antioxidants. A technology was proposed for producing Se zero-valent-state nanoparticles. Se nanoparticles were obtained by laser ablation of Se in water using a fiber ytterbium laser, with a wavelength between 1060 and 1070 nm, a pulse repetition rate of 20 kHz, a pulse duration of 80 ns, and an average power of 20 W, and a copper vapor laser with wavelengths of 510.6 and 578.2 nm and an average power of 8 W. The main particle mass part shifted from 800 nm to a size less than 100 nm, corresponding to the increase in the laser fragmentation time. The resulting nanoparticles were monodisperse in size and mass. The Se nanoparticle water suspension was introduced into the soil. The soil Se nanoparticle concentrations were about 1, 5, 10, and 25 μg kg-1. An experiment was carried out in a climate chamber in two series: (1) growing plants in soil imitating the standard organogenesis environment conditions such as illumination of 16 h per day, temperature of 22 °C, soil humidity of 25% SDW, and an experiment duration of 30 days and (2) growing plants in soil under changing environmental conditions of organogenesis. The standard environmental conditions for the first 10 days are illumination of 16 h day-1, temperature of 22 °C, and soil humidity of 25% SDW. The plant stress for 5 days is hyperthermia of 40 °C. The standard environmental conditions for the next 15 days are illumination of 16 h day-1, temperature of 22 °C, and soil humidity of 25% SDW. At standard organogenesis, the plant leaf plate surface area was 30 ± 2 cm2 in the control option, and the Se nanoparticle doses were correspondingly 1 μg kg-1 for 32 ± 3 cm2, 5 μg kg-1 for 37 ± 2 cm2, 10 μg kg-1 for 38 ± 3 cm2, and 25 μg kg-1 for 28 ± 4 cm2. Hyperthermia stressed plant growth was studied. The highest plant growth rate was in Se nanoparticle concentrations of 5 and 10 μg kg-1. The eggplant growth on the soil with the Se nanoparticle addition at a concentration of 10 μg kg-1 of leaf plate surface area was twice compared to the eggplant growth in untreated soil. The same was for tomato plants. The leaf plate surface area of the cucumber plant grown using Se nanoparticles was 50% higher compared to the control option. The Biogeosystem technique methodology of 20-45 cm soil-layer intrasoil milling for soil multilevel aggregate system formation and intrasoil pulse continuous-discrete watering for soil water regime control was proposed for the Se nanoparticles for better function in the real soil, providing a synergy effect of soil mechanical processing, nanoparticles, humic substances, and polymicrobial biofilms on soil fertility.
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Affiliation(s)
- Sergey
V. Gudkov
- Prokhorov
General Physics Institute RAS, 38 Vavilova Street, Moscow 119991, Russia
| | - Georgy A. Shafeev
- Prokhorov
General Physics Institute RAS, 38 Vavilova Street, Moscow 119991, Russia
- National
Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 31 Kashirskoe sh., Moscow 115409, Russia
| | - Alexey P. Glinushkin
- All-Russia
Research Institute for Phytopathology RAS, Big Vyazyomy, Moscow Region 143050, Russia
| | - Alexey V. Shkirin
- Prokhorov
General Physics Institute RAS, 38 Vavilova Street, Moscow 119991, Russia
- National
Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 31 Kashirskoe sh., Moscow 115409, Russia
| | - Ekaterina V. Barmina
- Prokhorov
General Physics Institute RAS, 38 Vavilova Street, Moscow 119991, Russia
| | - Ignat I. Rakov
- Prokhorov
General Physics Institute RAS, 38 Vavilova Street, Moscow 119991, Russia
| | - Alexander V. Simakin
- Prokhorov
General Physics Institute RAS, 38 Vavilova Street, Moscow 119991, Russia
| | - Anatoly V. Kislov
- All-Russia
Research Institute for Phytopathology RAS, Big Vyazyomy, Moscow Region 143050, Russia
| | - Maxim E. Astashev
- Institute
of Cell Biophysics RAS, 3 Institutskaya Street, Pushchino, Moscow Region 142290, Russia
| | - Vladimir A. Vodeneev
- Institute
of Biology and Biomedicine, Lobachevsky
State University of Nizhni Novgorod, Prospekt Gagarina, 23 k.1, Nizhni Novgorod 603950, Russia
| | - Valery P. Kalinitchenko
- All-Russia
Research Institute for Phytopathology RAS, Big Vyazyomy, Moscow Region 143050, Russia
- Institute
of Fertility of Soils of South Russia, Krivoshlykova str., 2, Persianovka, Rostov Region 346493, Russia
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Averin AS, Astashev ME, Andreeva TV, Tsetlin VI, Utkin YN. Cardiotoxins from Cobra Naja oxiana Change the Force of Contraction and the Character of Rhythmoinotropic Phenomena in the Rat Myocardium. DOKL BIOCHEM BIOPHYS 2019; 487:282-286. [PMID: 31559598 DOI: 10.1134/s1607672919040094] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Indexed: 01/03/2023]
Abstract
The study of the influence of cobra Naja oxiana cardiotoxins on the contractility of the rat papillary muscles and its rhythmoinotropic characteristics has shown that the presence of toxins induces a slight contractility decrease in the stimulation frequency range up to 0.1 Hz. In the stimulation frequency range from 0.1 to 0.5 Hz, a positive inotropic effect is found. However, the positive inotropic effect is replaced by a negative one with further increase in the frequency up to 3 Hz. In the presence of cardiotoxins, the positive force-frequency relationship in the region of 1-3 Hz, characteristic of healthy rat myocardium, disappears and the relationship becomes completely negative. L-type calcium channel blocker nifedipine does not affect the changes induced by toxins, while a high concentration (10 mM) of calcium prevents the effects of cardiotoxins on the muscle. The results obtained show that the impairment of the force-frequency relationship occurs long before the development of irreversible damage in the myocardium and may be the first sign of the pathological action of cardiotoxins.
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Affiliation(s)
- A S Averin
- Institute of Cell Biophysics, Federal Research Center "Pushchino Scientific Center of Biological Research," Pushchino Branch, Russian Academy of Sciences, 142290, Pushchino, Moscow oblast, Russia.
| | - M E Astashev
- Institute of Cell Biophysics, Federal Research Center "Pushchino Scientific Center of Biological Research," Pushchino Branch, Russian Academy of Sciences, 142290, Pushchino, Moscow oblast, Russia
| | - T V Andreeva
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997, Moscow, Russia
| | - V I Tsetlin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997, Moscow, Russia
| | - Yu N Utkin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997, Moscow, Russia.
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Simakin AV, Astashev ME, Baimler IV, Uvarov OV, Voronov VV, Vedunova MV, Sevost'yanov MA, Belosludtsev KN, Gudkov SV. The Effect of Gold Nanoparticle Concentration and Laser Fluence on the Laser-Induced Water Decomposition. J Phys Chem B 2019; 123:1869-1880. [PMID: 30696249 DOI: 10.1021/acs.jpcb.8b11087] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This Article covers the influence of the concentration of gold nanoparticles on laser-induced water decomposition. It was established that addition of gold nanoparticles intensifies laser-induced water decomposition by almost 2 orders of magnitude. The water decomposition rate was shown to be maximal at a nanoparticle concentration around 1010 NP/mL, whereas a decrease or increase of nanoparticle concentration leads to a decrease of water decomposition rate. It was demonstrated that, if the concentration of nanoparticles in water-based colloid was less than 1010 NP/mL, laser irradiation of the colloid caused formation of molecular hydrogen, hydrogen peroxide, and molecular oxygen. If the concentration of nanoparticles exceeded 1011 NP/mL, only two products, molecular hydrogen and hydrogen peroxide, were formed. Correlations between the water decomposition rate and the main optical and acoustic parameters of optical breakdown-generated plasma were investigated. Variants of laser-induced decomposition of colloidal solutions of nanoparticles based on organic solvents (ethanol, propanol-2, butanol-2, diethyl ether) were also analyzed.
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Affiliation(s)
- Aleksander V Simakin
- Prokhorov General Physics Institute of the Russian Academy of Sciences , 38 Vavilova St. , Moscow 119991 , Russia
| | - Maxim E Astashev
- Institute of Cell Biophysics of the Russian Academy of Sciences , 3 Institutskaya St. , Pushchino, Moscow Region 119991 , Russia
| | - Ilya V Baimler
- Prokhorov General Physics Institute of the Russian Academy of Sciences , 38 Vavilova St. , Moscow 119991 , Russia.,Moscow Institute of Physics and Technology , Institutsky Lane 9 , Dolgoprudny, Moscow Region 141700 , Russia
| | - Oleg V Uvarov
- Prokhorov General Physics Institute of the Russian Academy of Sciences , 38 Vavilova St. , Moscow 119991 , Russia
| | - Valery V Voronov
- Prokhorov General Physics Institute of the Russian Academy of Sciences , 38 Vavilova St. , Moscow 119991 , Russia
| | - Maria V Vedunova
- Institute of Biology and Biomedicine , Lobachevsky State University of Nizhny Novgorod , 23 Gagarin Ave. , Nizhny Novgorod 603950 , Russia
| | - Mikhail A Sevost'yanov
- Baikov Institute of Metallurgy and Materials Science of the Russian Academy of Sciences , 49 Leninskiy Ave. , Moscow 119334 , Russia
| | | | - Sergey V Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences , 38 Vavilova St. , Moscow 119991 , Russia.,Institute of Biology and Biomedicine , Lobachevsky State University of Nizhny Novgorod , 23 Gagarin Ave. , Nizhny Novgorod 603950 , Russia.,Moscow Regional Research and Clinical Institute (MONIKI) , 61/2 Shchepkina St. , Moscow 129110 , Russia
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Astashev ME, Serov DA, Tankanag AV. Anesthesia effects on the low frequency blood flow oscillations in mouse skin. Skin Res Technol 2018; 25:40-46. [PMID: 29790611 DOI: 10.1111/srt.12593] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND When laboratory animals are used one needs to anesthetize them before recording. However, the influence of anesthesia on animal blood flow oscillations has not been studied. The effects of two ways of anesthesia, zoletil-xylazine, and zoletil-nitrous oxide mixtures, on mouse skin perfusion using laser Doppler flowmetry (LDF) technique were studied. METHODS BALB/c mice were used. LDF probe was placed on the ventral surface of the left hind paw. Spectral analysis of LDF signals was performed with continuous adaptive wavelet transform to identify and describe peripheral blood flow oscillations in mouse skin. RESULTS Low-frequency oscillation interval boundaries (myogenic, neurogenic, and endothelial) for mice were shown to coincide with the boundaries determined for human and rats, that demonstrate their independence from the body size. Zoletil-xylazine anesthesia significantly decreased neurogenic and endothelial oscillation amplitudes by 29% and 50% respectively and increased the amplitude of cardiac oscillations by 23% compared to zoletyl-nitrous oxide anesthesia. There were no significant changes of the amplitudes of myogenic and respiratory oscillations with zoletil-nitrous oxide anesthesia compared to the zoletil-xylazine mixture. CONCLUSION We suggest that the different influence of anesthesia modes on the amplitudes of skin blood flow oscillations is associated with sympathetic activity suppressed by zoletil-xylazine anesthesia.
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Affiliation(s)
- M E Astashev
- Institute of Cell Biophysics, Russian Academy of Science, Pushchino, Moscow region, Russia
| | - D A Serov
- Institute of Fundamental Problems of Biology, Russian Academy of Science, Pushchino, Moscow region, Russia
| | - A V Tankanag
- Institute of Cell Biophysics, Russian Academy of Science, Pushchino, Moscow region, Russia
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25
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Dubinin MV, Astashev ME, Penkov NV, Gudkov SV, Dyachenko IA, Samartsev VN, Belosludtsev KN. Effects of Phospholipase A2 Inhibitors on Bilayer Lipid Membranes. J Membr Biol 2016; 249:339-47. [DOI: 10.1007/s00232-016-9872-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 01/06/2016] [Indexed: 10/22/2022]
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Gudkov SV, Astashev ME, Bruskov VI, Kozlov VА, Zakharov SD, Bunkin NF. Self-oscillating Water Chemiluminescence Modes and Reactive Oxygen Species Generation Induced by Laser Irradiation; Effect of the Exclusion Zone Created by Nafion. Entropy (Basel) 2014; 16:6166-6185. [PMID: 33353259 DOI: 10.3390/e16116166] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 10/30/2014] [Accepted: 11/17/2014] [Indexed: 12/31/2022]
Abstract
Samples of water inside and outside an exclusion zone (EZ), created by Nafion swollen in water, were irradiated at the wavelength l = 1264 nm, which stimulates the electronic transition of dissolved oxygen from the triplet state to the excited singlet state. This irradiation induces, after a long latent period, chemiluminescence self-oscillations in the visible and near UV spectral range, which last many hours. It occurs that this effect is EZ-specific: the chemiluminescence intensity is twice lower than that from the bulk water, while the latent period is longer for the EZ. Laser irradiation causes accumulation of H2O2, which is also EZ-specific: its concentration inside the EZ is less than that in the bulk water. These phenomena can be interpreted in terms of a model of decreasing O2 content in the EZ due to increased chemical activity of bisulfite anions (HSO3-), arisen as the result of dissociation of terminal sulfonate groups of the Nafion. The wavelet transform analysis of the chemiluminescence intensity from the EZ and the bulk water gives, that self-oscillations regimes occurring in the liquid after the latent period are the determinate processes. It occurred that the chemiluminescence dynamics in case of EZ is characterized by a single-frequency self-oscillating regime, whereas in case of the bulk water, the self-oscillation spectrum consists of three spectral bands.
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Affiliation(s)
- Sergey V Gudkov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Institutskaya 3, Moscow Region, 142290, Russia
- Pushchino State Natural Scientific Institute Pushchino, Nauki prospekt 1, Moscow Region, 142290, Russia
- Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, Vavilova 38, 119991, Russia
| | - Maxim E Astashev
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Institutskaya 3, Moscow Region, 142290, Russia
- Pushchino State Natural Scientific Institute Pushchino, Nauki prospekt 1, Moscow Region, 142290, Russia
- Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Institutskaya 3, Moscow Region, 142290, Russia
| | - Vadim I Bruskov
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Pushchino, Institutskaya 3, Moscow Region, 142290, Russia
- Pushchino State Natural Scientific Institute Pushchino, Nauki prospekt 1, Moscow Region, 142290, Russia
| | - Valeriy А Kozlov
- Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, Vavilova 38, 119991, Russia
- Bauman Moscow State Technical University, Moscow, Second Baumanskaya, 5, 105005, Russia
| | - Stanislav D Zakharov
- Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Institutskaya 3, Moscow Region, 142290, Russia
- Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Leninskiy prospekt 53, 119991, Russia
- National Research Nuclear University "MEPhI", Moscow, Kashirskoye shosse 31, 115409, Russia
| | - Nikolai F Bunkin
- Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, Vavilova 38, 119991, Russia
- Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Institutskaya 3, Moscow Region, 142290, Russia
- Bauman Moscow State Technical University, Moscow, Second Baumanskaya, 5, 105005, Russia
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Dubinin MV, Samartsev VN, Astashev ME, Kazakov AS, Belosludtsev KN. A permeability transition in liver mitochondria and liposomes induced by α,ω-dioic acids and Ca(2+). Eur Biophys J 2014; 43:565-72. [PMID: 25217975 DOI: 10.1007/s00249-014-0986-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 07/29/2014] [Accepted: 09/04/2014] [Indexed: 12/27/2022]
Abstract
The article examines the molecular mechanism of the Ca(2+)-dependent cyclosporin A (CsA)-insensitive permeability transition in rat liver mitochondria induced by α,ω-dioic acids. The addition of α,ω-hexadecanedioic acid (HDA) to Ca(2+)-loaded liver mitochondria was shown to induce a high-amplitude swelling of the organelles, a drop of membrane potential and the release of Ca(2+) from the matrix, the effects being insensitive to CsA. The experiments with liposomes loaded with sulforhodamine B (SRB) revealed that, like palmitic acid (PA), HDA was able to cause permeabilization of liposomal membranes. However, the kinetics of HDA- and PA-induced release of SRB from liposomes was different, and HDA was less effective than PA in the induction of SRB release. Using the method of ultrasound interferometry, we also showed that the addition of Ca(2+) to HDA-containing liposomes did not change the phase state of liposomal membranes-in contrast to what was observed when Ca(2+) was added to PA-containing vesicles. It was suggested that HDA/Ca(2+)- and PA/Ca(2+)-induced permeability transition occurs by different mechanisms. Using the method of dynamic light scattering, we further revealed that the addition of Ca(2+) to HDA-containing liposomes induced their aggregation/fusion. Apparently, these processes result in a partial release of SRB due to the formation of fusion pores. The possibility that this mechanism underlies the HDA/Ca(2+)-induced permeability transition of the mitochondrial membrane is discussed.
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Affiliation(s)
- Mikhail V Dubinin
- Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El, 424001, Russia,
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Gudkov SV, Ivanov VE, Karp OÉ, Chernikov AV, Belosludtsev KN, Bobylev AG, Astashev ME, Gapeev AB, Bruskov VI. [Impact of biologically important anions on reactive oxygen species formation in water under the effect of non-ionizing physical agents]. Biofizika 2014; 59:862-870. [PMID: 25730966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The influence of biologically relevant anions (succinate, acetate, citrate, chloride, bicarbonate, hydroorthophosphate, dihydroorthophosphate, nitrite, nitrate) on the formation of hydrogen peroxide and hydroxyl radicals in water was studied under the effect of non-ionizing radiation: heat, laser light with a wavelength of 632.8 nm, corresponding to the maximum absorption of molecular oxygen, and electromagnetic radiation of extremely high frequencies. It has been established that various anions may both inhibit the formation of reactive oxygen species and increase it. Bicarbonate and sulfate anions included in the biological fluids' and medicinal mineral waters have significant, but opposite effects on reactive oxygen species production. Different molecular mechanisms of reactive oxygen species formation are considered under the action of the investigated physical factors involving these anions, which may influence the biological processes by signal-regulatory manner and provide a healing effect in physical therapy.
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Gudkov SV, Karp OE, Garmash SA, Ivanov VE, Chernikov AV, Manokhin AA, Astashev ME, Iaguzhinskiĭ LS, Bruskov VI. [Generation of reactive oxygen species in water under exposure of visible or infrared irradiation at absorption band of molecular oxygen]. Biofizika 2012; 57:5-13. [PMID: 22567905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
It is found that in bidistilled water saturated with oxygen hydrogen peroxide and hydroxyl radicals are formed under the influence of visible and infrared radiation in the absorption bands of molecular oxygen. Formation of reactive oxygen species (ROS) occurs under the influence of both solar and artificial light sourses, including the coherent laser irradiation. The oxygen effect, i.e. the impact of dissolved oxygen concentration on production of hydrogen peroxide induced by light, is detected. It is shown that the visible and infrared radiation in the absorption bands of molecular oxygen leads to the formation of 8-oxoguanine in DNA in vitro. Physicochemical mechanisms of ROS formation in water when exposed to visible and infrared light are studied, and the involvement of singlet oxygen and superoxide anion radicals in this process is shown.
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Blinov DS, Balashov VP, Sernov LN, Kazachenko VN, Blinova EV, Belova LA, Astashev ME. [The mechanism of antiarrhythmic action of a new ammonium derivative of lidocaine (LKhT-12-02)]. Eksp Klin Farmakol 2006; 69:31-3. [PMID: 17209461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The results of electrophysiological investigation of the effects of LKhT-12-02 (a quaternary ammonium derivative of lidocaine) on the intact cat heart and the isolated ion channels of Lymnaea stagnalis snail showed that this compound belongs to class 1B antiarrhythmic agents (Vaughan - Williams classification). The drug does not suppress the automatic nonmonotonic rhythm driver, does not influence the conductance in ventricles, auricles, and atrioventricular node in the sinus rhythm, and does not elongate the effective refractory period of the auricles and atrioventricular node. LKhT-12-02 decreases the rate of fast depolarization of the action potential, while not reducing its duration. The compound does not influence the conduction of sodium ion channels.
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Abstract
Complex electrophysiological study of the effects of quaternidine carried out on intact hearts from cats, myocardial fragments from rats, and single ionic channels of large edible snail showed that quaternidine demonstrates properties of class 1B antiarrhythmic drug according to Vaughan-Williams nomenclature. This agent did not suppress nomotopic pacemaker automaticity, did not change conduction in ventricles, atria, and atrioventricular junction in hearts with preserved sinus rhythm, did not prolong refractoriness of the atria and atrioventricular junction, but prolonged efficient refractory period of heart ventricles. Quaternidine decelerated rapid depolarization of the action potential, but had no effect on its duration. It did not affect potassium conductance.
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Affiliation(s)
- V P Balashov
- Department of Medical Biology, N. P. Ogarev Mordovian State University, Saransk, Russia.
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Brazhe AR, Astashev ME, Maksimov GV, Kazachenko VN, Rubin AB. [Calculation of local Hurst exponents in the Ca(2+)-activated K(+)-channel dwell time]. Biofizika 2004; 49:1075-83. [PMID: 15612549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
A novel method based on the maximum overlap wavelet transform of dwell time series is proposed. Information on local multifractal properties of the series, namely local Hurst exponents or Holder exponents, was obtained. The results confirm the presence of multifractality and intrinsic correlations in the Ca(2+)-activated K+ channel dwell time series. The data on the local multifractal structure of the series can be interpreted in terms of processes having self-organized criticality. The proposed approach allows one to widen the store of methods for the analysis of single ion channel activity.
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Kazachenko VN, Kochetkov KV, Astashev ME, Grinevich AA. [Fractal properies of gating in potential-dependent K+-channels in Lymnaea stagnalis neurons]. Biofizika 2004; 49:852-65. [PMID: 15526471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Sets of the channel open times, [tau(o)], and closed times, [tau(c)], and the full set of the channel open and closed times, [tau(o), tau(c)], in the activity of single voltage-dependent K+-channels in mollusc L. stagnalis neurons were analyzed using the rescaled range analysis (Hurst method), fast Fourier and wavelet transforms. It was found that the Hurst dependence for each time series could be approximated by a polygonal line with at least two slopes: H1 and H2 (Hurst exponents). The averaged values of H1 and H2 for the sets [tau(o), tau(c)] were equal to 0.61 +/- 0.03 and 0.83 +/- 0.11, respectively; for the [tau(o)] sets H1 = 0.66 +/- 0.03 and H2 = 0.95 +/- 0.10; for the [tau(c)] sets, H1 = 0.62 +/- 0.05 and H2 = 0.85 +/- 0.10. In some cases, a third slope appeared on the Hurst dependences. It was very variable and ranged between 0.5 and 1. The Hurst exponents H1, H2, and H3 characterized short, intermediate, and long time ranges, respectively. The ranges greatly varied from experiment to experiment. The data obtained show that the channel openings and closings (gating process) represent a persistent process correlated in time. The randomization of the time sets resulted in a single slope, H, of 0.52 +/- 0.02 characteristic of random processes. The results were confirmed by the fast Fourier and wavelet transforms. In addition, possible voltage dependences of Hurst exponents and their correlation with tau(o) and tau(c) were investigated. As a whole, single channel activity may be characterized as a multifractal process with a slight voltage dependence of the Hurst exponents.
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