Nanotechnologies in Russia 

About: Nanotechnologies in Russia is an academic journal. The journal publishes majorly in the area(s): Nanoparticle & Nanocomposite. It has an ISSN identifier of 1995-0780. Over the lifetime, 1236 publications have been published receiving 6282 citations.

Interaction of titanium dioxide nanoparticles with influenza virus

Abstract: Titanium dioxide (TiO2) in a suspension or absorbed on a film possesses bactericidal and virucidal properties caused by photocatalytic reactions. Our electron microscopic examinations showed that titanium dioxide nanoparticles destroyed the influenza virus after 30 min incubation. Virological studies revealed the inactivation of the influenza virus by TiO2, depending on the concentration of nanoparticles and the incubation period. The inactivation effect was observed when the incubation was performed in darkness, unlike the TiO2 suspension. We propose that the virus-inactivation properties of TiO2 are mainly based on the direct contact between nanoparticles and virus particles.

Ion-Exchange Membrane Materials: Properties, Modification, and Practical Application

Abstract: In this review, modern notions on the structure and properties of one of the most in-demand classes of nanomaterials—ion-exchange membranes—are generalized. Data are presented on their transport properties, on their use in electrodialysis and in alternative power engineering, on the methods of their modification that lead to changing the conducting and selective properties of membranes, and on certain aspects of their use in modern technologies.

The electrical explosion of wire: A method for the synthesis of weakly aggregated nanopowders

Abstract: This overview covers investigations and designs that demonstrate the opportunity to use the phenomenon of the electrical explosion of wire to produce weakly aggregated nanopowders of metals, alloys, mixtures, and oxides. Some general regularities that facilitate the choice of the circuit parameters and dimensions of the exploding wire necessary for producing particles of the required size are described. The limitations to synthesizing the nanopowders of some metals and oxides are indicated. The method is environmentally clean, offers sufficiently high output capacity, and is energy efficient.

Membranes and nanotechnologies

Abstract: Modern membranes are advanced technological products used in various fields of industry and science, and they are one of the necessary prerequisites for the development of these fields and for solving important social and ecological problems. It is difficult today to find a field of human activity that can exist without membranes. For this reason, membrane science and technology has always been given much attention at the federal level in the former USSR and now in Russia. In the USSR, research and development in this field was coordinated by the Interdisciplinary Scientific-Technological Corporation “Membranes,” and now these activities are supported on a competitive basis by the Federal Agency for Science and Innovations in accordance with the State Program of Research and Development “Industry of Nanosystems and Materials,” within the subprogram “Technology of Membranes and Catalytic Systems.” It should be emphasized that membrane technologies were in high demand even during the industrial crisis of the 1990s, and numerous small and medium level businesses engaged in the production of membranes and related devices. Presently, more than 50 domestic companies operate on the Russian membrane market, many of which (e.g., Voronezh-Akva Co. [1], GRASYS Co. [2], Aspekt Co. [3], and Ceramic Filter Co. [4]) have been created and managed by high-quality specialists of former military enterprises. Among the domestic manufacturers of membrane gas separation devices, GRASYS Co. [2] is also the most successful competitor on the international market, being one of the biggest suppliers of this equipment in Europe. The products from this company are fully adapted for use in all climate belts of Russia. The compact design of the gas separation units makes it possible to combine them with compression stations on the platforms of freight vehicles or in special containers. Stationary and mobile membrane nitrogen liquefaction plants are employed at oil and gas deposits and used to help extinguish fires in the coal, chemical, and petrochemical industries, and in various other fields (museums, exhibitions, archives, banks, computer centers, rooms with advanced electronic equipment, etc.). Since the beginning of the 1990s, the conversion

Wound-healing properties of copper nanoparticles as a function of physicochemical parameters

Abstract: Results of a study on the wound-healing potential and physicochemical characteristics of copper nanoparticles prepared by high-temperature condensation and modified with a variety of agents (including oxygen, water vapors, and air) are reported. The modification of copper nanoparticles under monitored conditions guarantees the synthesis of particle species differing in size, phase composition, thickness, and composition of the oxide layer. Modified copper nanoparticles in the form of an ointment showed wound-healing behavior that differs in effectiveness depending on their physicochemical parameters. Nanoparticles of copper oxide (sample 7) (modified with air), with a particle size of 119 nm and crystalline copper content of ∼0.5%, and copper nanoparticles (sample 2) (modified with oxygen), with a particle size of 103 nm and crystalline copper content of 96%, demonstrated the maximum specific rate of wound adhesion.