rus
Nanotechnology
A.I.Akhmetova, O.V.Ivanov, N.E.Maksimova, T.O.Sovetnikov, A.D.Terentiev, I.V.Yaminsky
THEORY AND PRACTICE OF SCANNING PROBE MICROSCOPY: NEW SOLUTIONS FOR PHYSICS, CHEMISTRY, BIOLOGY AND MEDICINE DOI: https://doi.org/10.22184/1993-8578.2023.16.2.88.94
41 years have passed since the first scanning probe microscopy publication [1]. During this time, scanning probe microscopes, which make it possible to look into the nanoworld, have become practical tools for physicists, chemists, biologists, doctors, industrialists and teachers. Probe microscopes have formed an extensive family of high-precision and highly informative instruments for observing topography, morphology, and a wide range of physicochemical properties of studied objects. At the same time, detailing of the data obtained is at the level of nanometer with milliseconds time resolution. Are there any unresolved issues? Certainly! Our story is about a small part of them, about the tasks and problems in probe microscopy.
THEORY AND PRACTICE OF SCANNING PROBE MICROSCOPY: NEW SOLUTIONS FOR PHYSICS, CHEMISTRY, BIOLOGY AND MEDICINE DOI: https://doi.org/10.22184/1993-8578.2023.16.2.88.94
41 years have passed since the first scanning probe microscopy publication [1]. During this time, scanning probe microscopes, which make it possible to look into the nanoworld, have become practical tools for physicists, chemists, biologists, doctors, industrialists and teachers. Probe microscopes have formed an extensive family of high-precision and highly informative instruments for observing topography, morphology, and a wide range of physicochemical properties of studied objects. At the same time, detailing of the data obtained is at the level of nanometer with milliseconds time resolution. Are there any unresolved issues? Certainly! Our story is about a small part of them, about the tasks and problems in probe microscopy.
Tags: bionanoscopy exchange interaction instrumentation noise and fluctuations physics of living systems scanning probe microscopy бионаноскопия обменное взаимодействие приборостроение сканирующая зондовая микроскопия физика живых систем шумы и флуктуации
D.A.Zhukov, P.A.Polyakov, V.V.Amelichev, S.I.Kasatkin, O.P.Polyakov, D.V.Kostyuk
THEORETICAL MODEL OF THE PROCESS OF MAGNETIZATION REVERSAL OF A MAGNETORESISTIVE NANOSTRUCTURE OF MAGNETIC STRAINTRONICS DOI: https://doi.org/10.22184/1993-8578.2023.16.2.96.102
The results of the study of experimental samples and the developed theoretical model of the physical process of magnetization reversal of a multilayer magnetoresistive nanostructure with a magnetostrictive effect are presented. The main factors influencing the processes of magnetic straintronics are described. The obtained results of the theoretical calculation of the magnetoresistance under mechanical deformations agree with the experimental data
THEORETICAL MODEL OF THE PROCESS OF MAGNETIZATION REVERSAL OF A MAGNETORESISTIVE NANOSTRUCTURE OF MAGNETIC STRAINTRONICS DOI: https://doi.org/10.22184/1993-8578.2023.16.2.96.102
The results of the study of experimental samples and the developed theoretical model of the physical process of magnetization reversal of a multilayer magnetoresistive nanostructure with a magnetostrictive effect are presented. The main factors influencing the processes of magnetic straintronics are described. The obtained results of the theoretical calculation of the magnetoresistance under mechanical deformations agree with the experimental data
Tags: anisotropic magnetoresistive effect magnetic straintronics magnetoresistive nanostructure theory of micromagnetism анизотропный магниторезистивный эффект магнитная стрейнтроника магниторезистивная наноструктура теория микромагнетизма
Yu.D.Ivanov, I.D.Shumov, A.F.Kozlov, M.O.Ershova, A.A.Valueva, I.A.Ivanova, V.Yu.Tatur, A.A.Lukyanitsa, N.D.Ivanova, E.D.Nevedrova, V.S.Ziborov
AFM STUDY OF THE POST-EFFECT OF GLYCEROL FLOW IN AN OUTPUT SECTION OF A FLOW-BASED ANALYTICAL SYSTEM ON ADSORPTION PROPERTIES OF A PROTEIN DOI: https://doi.org/10.22184/1993-8578.2023.16.2.106.113
Atomic force microscopy (AFM) has been used to study the post-effect of glycerol flow through a spiral-wound flow-based system on adsorption properties of horseradish peroxidase (HRP) protein, which was incubated near the linear part of the outlet section of the flow-based system.
AFM STUDY OF THE POST-EFFECT OF GLYCEROL FLOW IN AN OUTPUT SECTION OF A FLOW-BASED ANALYTICAL SYSTEM ON ADSORPTION PROPERTIES OF A PROTEIN DOI: https://doi.org/10.22184/1993-8578.2023.16.2.106.113
Atomic force microscopy (AFM) has been used to study the post-effect of glycerol flow through a spiral-wound flow-based system on adsorption properties of horseradish peroxidase (HRP) protein, which was incubated near the linear part of the outlet section of the flow-based system.
Tags: atomic force microscopy horseradish peroxidase protein adsorption spiral-wound communication адсорбция белка атомно-силовая микроскопия пероксидаза хрена спиральная коммуникация
A.V.Nethentsev, K.A.Tsarik
ANALYTICAL REVIEW OF METHODS FOR PRODUCING ALLOYED AND NON-ALLOYED OHMIC CONTACTS TO GALLIUM NITRIDE NANOHETEROSTRUCTURES DOI: https://doi.org/10.22184/1993-8578.2023.16.2.114.122
The paper considers the technological features of manufacturing ohmic contacts with resistances from 0,025 to 0,4 Ohm ∙ mm to nanoheterostructures based on gallium nitride. It has been established that non-burning ohmic contacts are the most suitable for mastering operating frequencies up to the terahertz range.
ANALYTICAL REVIEW OF METHODS FOR PRODUCING ALLOYED AND NON-ALLOYED OHMIC CONTACTS TO GALLIUM NITRIDE NANOHETEROSTRUCTURES DOI: https://doi.org/10.22184/1993-8578.2023.16.2.114.122
The paper considers the technological features of manufacturing ohmic contacts with resistances from 0,025 to 0,4 Ohm ∙ mm to nanoheterostructures based on gallium nitride. It has been established that non-burning ohmic contacts are the most suitable for mastering operating frequencies up to the terahertz range.
Tags: gallium nitride nanoheterostructure ohmic contact наногетероструктура нитрид галлия омический контакт
A.V.Smirnov
DETERMINATION OF THIN METAL FILMS THICKNESS BY INDIRECT METHOD USING THE INTERFERENCE EFFECT DOI: https://doi.org/10.22184/1993-8578.2023.16.2.124.129
Methods for determining of thin metal films thicknesses are considered. Thin films of amorphous selenium, silver and silver layers on a selenium film are synthesized. Optical transmission spectra were taken on a UV-spectrophotometer. A technique of thin metal films preparing based on the interference effect on certain thicknesses of selenium films is proposed. The appropriate calculations have been made.
DETERMINATION OF THIN METAL FILMS THICKNESS BY INDIRECT METHOD USING THE INTERFERENCE EFFECT DOI: https://doi.org/10.22184/1993-8578.2023.16.2.124.129
Methods for determining of thin metal films thicknesses are considered. Thin films of amorphous selenium, silver and silver layers on a selenium film are synthesized. Optical transmission spectra were taken on a UV-spectrophotometer. A technique of thin metal films preparing based on the interference effect on certain thicknesses of selenium films is proposed. The appropriate calculations have been made.
Tags: interference maxima metal films selenium films silver spectrophotometry thin-film systems интерференционные максимумы пленки металлов пленки селена серебро спектрофотометрия тонкопленочные системы
Nanomaterials
A.V.Smirnov
SYNTHESIS AND STUDY OF NICKEL OXIDE AND LINEAR-CHAIN CARBON FILM COMPOSITES DOI: https://doi.org/10.22184/1993-8578.2023.16.2.132.137
This paper considers an experiment on the synthesis of semiconductor nickel oxide films and composites of nickel oxide films with linear-chain carbon as relative humidity sensor elements. Appropriate measurements have been carried out, and an analysis of NiO/LCC nanocomposites sensitivity mechanism, which describes increasing electrical conductivity (decreasing resistance) of film structures with humidity has been given.
SYNTHESIS AND STUDY OF NICKEL OXIDE AND LINEAR-CHAIN CARBON FILM COMPOSITES DOI: https://doi.org/10.22184/1993-8578.2023.16.2.132.137
This paper considers an experiment on the synthesis of semiconductor nickel oxide films and composites of nickel oxide films with linear-chain carbon as relative humidity sensor elements. Appropriate measurements have been carried out, and an analysis of NiO/LCC nanocomposites sensitivity mechanism, which describes increasing electrical conductivity (decreasing resistance) of film structures with humidity has been given.
Tags: lcc films nanomaterials ni films resistive humidity sensors наноматериалы пленки лцу пленки никеля сенсоры влажности резистивного типа
Equipment for nanoindustry
A.D.Terentev, I.V.Yaminsky
PERIPHERAL SENSORS FOR SCANNING PROBE MICROSCOPY DOI: https://doi.org/10.22184/1993-8578.2023.16.2.140.143
Scanning probe microscopy provides information about the studied objects with an accuracy of tenths and hundredths of a nanometer with a time resolution of milliseconds and higher. Equipping the probe microscope with additional peripheral sensors for measuring temperature and humidity is a useful option. When studying living cells, it is necessary to control and maintain the concentration of carbon dioxide. This requires compact and user-friendly carbon dioxide sensors with an appropriate user-oriented software interface. If sample movements are controlled, especially when using large fields of view, limit sensors become important accessories. They will allow not going beyond the selected area of study of the observed object. This paper describes a simple solution for the efficient use of sensors that measure temperature, humidity, CO2 concentration and movement.
PERIPHERAL SENSORS FOR SCANNING PROBE MICROSCOPY DOI: https://doi.org/10.22184/1993-8578.2023.16.2.140.143
Scanning probe microscopy provides information about the studied objects with an accuracy of tenths and hundredths of a nanometer with a time resolution of milliseconds and higher. Equipping the probe microscope with additional peripheral sensors for measuring temperature and humidity is a useful option. When studying living cells, it is necessary to control and maintain the concentration of carbon dioxide. This requires compact and user-friendly carbon dioxide sensors with an appropriate user-oriented software interface. If sample movements are controlled, especially when using large fields of view, limit sensors become important accessories. They will allow not going beyond the selected area of study of the observed object. This paper describes a simple solution for the efficient use of sensors that measure temperature, humidity, CO2 concentration and movement.
Tags: bionanoscopy carbon dioxide humidity instrumentation physics of living systems scanning probe microscopy temperature бионаноскопия влажность приборостроение сканирующая зондовая микроскопия температура углекислый газ физика живых систем
D.M.Bamatov, I.M.Bamatov, H.H.Sapaev
CHEMICAL REACTOR DESIGN. THE CONFIGURATION OF PARTS FOR A MULTI-STAGE CHEMICAL REACTOR FOR CONTINUOUS LIQUID MIXING DOI: https://doi.org/10.22184/1993-8578.2023.16.2.144.151
The purpose of this work was to propose a configuration of the elements of a model of a continuous chemical reactor that would meet the criteria for the ideality of the operation of chemical reactors. A technique has been proposed for modeling a chemical reactor. The 7-step method for designing reactors makes it possible to select materials for the reactor according to pre-calculated parameters, and makes it possible to carry out a preliminary design of the reactor with the necessary weight and size characteristics. This allowed us to propose the configuration of elements for a multi-stage chemical reactor for continuous mixing of liquids. A six stage reactor configuration has been proposed. In which each stage is an isolated mixing volume. Mixing is achieved by means of an oscillatory element in the form of the base of the reactor. Mixing volumes are designed in such a way that each volume equals 1 liter. All six volumes are interconnected in series, which is achieved due to the correct design of the covers of the mixing volume. One more configuration element of the reactor proposed is a system for monitoring the temperature regime inside the reactor mixing volume. A design like this will allow the construction of a multifunctional chemical reactor for continuous liquid mixing with an output capacity of 6 liters per a working cycle.
CHEMICAL REACTOR DESIGN. THE CONFIGURATION OF PARTS FOR A MULTI-STAGE CHEMICAL REACTOR FOR CONTINUOUS LIQUID MIXING DOI: https://doi.org/10.22184/1993-8578.2023.16.2.144.151
The purpose of this work was to propose a configuration of the elements of a model of a continuous chemical reactor that would meet the criteria for the ideality of the operation of chemical reactors. A technique has been proposed for modeling a chemical reactor. The 7-step method for designing reactors makes it possible to select materials for the reactor according to pre-calculated parameters, and makes it possible to carry out a preliminary design of the reactor with the necessary weight and size characteristics. This allowed us to propose the configuration of elements for a multi-stage chemical reactor for continuous mixing of liquids. A six stage reactor configuration has been proposed. In which each stage is an isolated mixing volume. Mixing is achieved by means of an oscillatory element in the form of the base of the reactor. Mixing volumes are designed in such a way that each volume equals 1 liter. All six volumes are interconnected in series, which is achieved due to the correct design of the covers of the mixing volume. One more configuration element of the reactor proposed is a system for monitoring the temperature regime inside the reactor mixing volume. A design like this will allow the construction of a multifunctional chemical reactor for continuous liquid mixing with an output capacity of 6 liters per a working cycle.
Tags: carbon fiber chemical reactor continuous mixing element configuration reactor base reactor design thermosensor беспрерывное смешивание конфигурация элементов моделирование реактора основание реактора термосенсоры углеродное волокно химический реактор
B.G.Turukhano, N.Turukhano, Yu.M.Lavrov, O.G.Ermolenko, S.N.Khanov
CERTIFICATION OF NM LHE NANO-LINEAR HOLOGRAPHIC SENSOR (RUSSIAN FEDERATION) AND AT715 SENSOR (JAPAN) DOI: https://doi.org/10.22184/1993-8578.2023.16.2.152.158
Nano-measuring linear holographic encoder (NM LHE) and AT715 sensor are high-precision displacement and length measurement devices. The measuring element of the NM LHE is a linear holographic diffraction grating. The AT715 linear scale operates on the base of electromagnetic induction. The NM LHE and AT715 sensors have an operating range of more than 1000 mm.
CERTIFICATION OF NM LHE NANO-LINEAR HOLOGRAPHIC SENSOR (RUSSIAN FEDERATION) AND AT715 SENSOR (JAPAN) DOI: https://doi.org/10.22184/1993-8578.2023.16.2.152.158
Nano-measuring linear holographic encoder (NM LHE) and AT715 sensor are high-precision displacement and length measurement devices. The measuring element of the NM LHE is a linear holographic diffraction grating. The AT715 linear scale operates on the base of electromagnetic induction. The NM LHE and AT715 sensors have an operating range of more than 1000 mm.