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Vol 17, No 2 (2024)
Nanotechnologies
Observation of changes in the morphology of high-temperature metal films in a scanning probe microscope during warming up in open space conditions
Abstract
Regularities of changes in the surface morphology of high-temperature metal coatings used as protective coatings can be applied to the structures of spacecraft sent closer to the Sun, have been observed. It is shown that films become less friable, and small grains of these films increase in size, as if spreading on the surface and rearranging into larger formations.
90-97
Quartz reference measure for scanning probe microscopy
Abstract
Improving accuracy and reliability of measurements at the nanoscale is becoming increasingly important for various applications, especially in areas such as semiconductor electronics, optical metamaterials, sensors, and biological measurements. With the development of high-resolution imaging techniques, the need for metrological verification of these devices has also naturally arisen. The challenge of measuring nanoscale morphology at a specific location has emerged, which requires positional accuracy in both vertical and lateral directions. Stability and robustness of measurements require that the microscope should be regularly calibrated using calibration tools. Quartz calibration measures can be one such standard.
98-105
Study of possibility of flexible variable vessels for remote pressure measurement systems
Abstract
The technology of silicon deposition has been developed, and it has been possible to obtain a durable polycrystalline silicon film with good adhesion on a PET substrate with a thickness of 150...200 nm. Using this technology, a prototype of a flexible variable capacitance was prepared. The study of capacitance changes due to changes in pressure acting on it has a linear form, which makes it possible to use this technology for the manufacture of a pressure sensor.
106-112
Study of influenza A virus nuclear export protein aggregates using atomic force microscopy
Abstract
The nuclear export protein (NEP) plays an important role in intracellular processes during infection of host cells. In this paper, aggregates of various morphologies and sizes were identified and characterized for the first time using atomic force microscopy. The results obtained may be used for development of new antiviral drugs and developing of NEP-based drug delivery systems.
114-118
Equipment for Nanoindustry
Combining nanocalorimetry and atomic force microscopy to study structure formation processes on the nanoscale
Abstract
Wide range of rapid analytical methods intended for the physicochemical analysis of organic compounds are being actively developed. The present paper highlights the possibility of studying microquantities of polymer materials using a chip calorimetry (nanocalorimetry) method combined with atomic force microscopy (AFM). An experimental setup is presented for conducting combined studies using ultrafast chip calorimetry and AFM. The main technological aspects of combining the two methods are considered, and behavior of a nanocalorimetric sensor when interacting with a cold AFM cantilever for measurements of microquantities of polymer materials at different temperatures is addressed in situ.
120-127
Diffraction grating as a means of metrological support of microscopy
Abstract
Visualization of biomedical samples in their natural environment at micro- and nanoscale is crucial for studying fundamental principles of biosystems functioning with complex interactions. The study of dynamic biological processes requires a microscopic system with multiple measurement capabilities, high spatial and temporal resolution, versatile visualization environments and local manipulation options. Scanning capillary microscopy and microlens microscopy are promising tools for these tasks, but correct operation of either technique is impossible without metrological support. This paper demonstrates the possibility of using a diffraction grating sample for these purposes.
128-133
Economics
Industry 5.0 – a new vector of industrial development
Abstract
The main reasons for transition to a new stage of industrial and economic development are considered, and a comparative analysis of the main conceptual provisions of Industry 4.0 and Industry 5.0 is provided. The basic principles of industrial development in the conditions of transition to Industry 5.0 are formulated.
134-142
Nanomaterials
Study of the process of formation of copper oxide nanoparticles stabilized by glyceryl cocoate
Abstract
In this work, samples of nanoscale copper oxide stabilised with glyceryl cocoate were prepared by chemical precipitation in aqueous medium. Scanning electron microscopy microstructure studies showed that the copper oxide sample is represented by irregularly shaped agglomerates of size from 1 to 30 μm, which consist of nanoparticles diameters from 5 to 50 nm. Phase composition studies showed that the obtained sample is copper (II) oxide with monoclinic-beta crystal lattice, in this case the space group corresponds to C2/c. As a result of computer quantum-chemical modelling of interaction between glyceryl cocoate and copper oxide, it was found that the presented compound is energetically favourable (∆E = 1714.492 kcal/mol) and the interaction occurs via the carboxylate anion. This compound possesses a chemical rigidity value η ≥ 0.050 eV, indicating its stability. Interaction between glyceryl cocoate and copper oxide was found to occur through the carboxyl group by IR spectroscopy. During optimisation of the synthesis technique, it was found that the optimal parameters for obtaining CuO nanoparticles with an average hydrodynamic radius of less than 200 nm are temperatures in the rage of 95 to 100 °C, mass of copper acetate from 3 to 4 grams and concentration of stabiliser PEG-7 from 1–3%.
144-154