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Application of planar materials obtained by photolithography containing equidistant ultramicroelectrodes for analyzing the properties of electroactive oligopeptides
Procedia Structural Integrity. 2023. Vol. 50. P. 27–32.
Arbenin A. Y., Petrov A. A., Nazarov D. V., Serebryakov E. B., Kirichenko S. O., Smirnov V. M., Ermakov S. S., Vorobyov А., Mukhin M.
The presented work is devoted to the study of the possibility of using planar materials consisting of ultramicroelectrode arrays for voltammetric analysis of compounds with close redox potential, but with different diffusion coefficients, which has great prospects in the analysis of various oligomers, including oligopeptides. A feature of the electrochemical behavior of materials containing arrays of ultramicroelectrodes is the realization of hemispherical diffusion, which can lead to the steady state or unsteady state regime of the electrode depending on the intersection or non-intersection of the hemispheres. There is also a transient mode of operation of electrodes at partial intersection: voltammetry diagrams obtained in this mode may contain analytical information on the concentrations of substances with one redox potential, which favorably distinguishes the approach from the classical cyclic voltammetry using macroelectrodes. The prospects of the proposed approach are confirmed by the example of analysis using ultramicroelectrode arrays of ferrocenemethanol and triglycene ferrocenemethanol ester. The results obtained prove the possibility of applying the approach to the analysis of electroactive oligopeptide derivatives.
Dmitriev A., Kornilov V., Batienkov R., Lecture Notes in Civil Engineering 2026 Vol. 886 P. 249–255
Numerous studies have provided compelling evidence that the probability distribution of avalanche sizes follows a power law, and that 1/f noise is present in the stochastic dynamics of landslides. We present a theoretical explanation of these phenomena within the framework of self-organized criticality theory, proposing a discrete-time model in the form of a sandpile cellular ...
Added: October 13, 2026
Dmitriev A., Shulman I., Lebedev A., Studies in Computational Intelligence 2026 Vol. 1265 P. 266–273
A discrete-time model is presented for the self-organization of the X/Twitter social network to the edge of a phase transition, characterized by avalanche-like propagation of information in the network. The model is based on the analogy between the critical dynamics of the X social network and sandpile cellular automata with Manna rule on the Chung-Lu ...
Added: October 13, 2026
Arutyunov K., Kharitonov I. A., Petrosyants K. O., JETP Letters 2026 Vol. 124 No. 6 P. 1–16
Superconducting properties of metallic micro- and nanowires can be entirely different from those of bulk superconductors. Of particular interest is the nonequilibrium current-induced state of a quasi-one-dimensional superconducting channel. The most interesting phenomenon here is the stepped I–V characteristic, explained by a process known as phase slip center activation. If the origin of such step-like ...
Added: October 13, 2026
Makarov D. M., Kalikin N., Fashchevsky K. A. et al., Electrochimica Acta 2026 Vol. 579 Article 150159
Machine learning (ML) has become a powerful tool for accelerating the development of carbon-based supercapacitors;
however, most published models assume that a single predictive framework can describe both conventional
porous carbons and hybrid carbon electrodes. Here, we test this assumption using a comprehensive
benchmark dataset and an extended literature-curated dataset enriched with synthesis- and electrolyte-related
descriptors. Three ML algorithms ...
Added: October 13, 2026
Махлуф М., Ozhegov R., Elezov M. et al., Фотоника 2026 Vol. 20 No. 6 P. 414–423
This paper compares the ranging precision of direct time-of-flight (dToF) and non-line-of-sight (NLOS) LiDAR architectures, both using a superconducting nanowire single-photon detector (SNSPD). Both systems operate at 1550 nm with a 50 ps pulsed laser and time-correlated single-photon counting (TCSPC). The dToF configuration achieved approximately 100 µm precision at 10 m, while the NLOS configuration achieved 500 µm precision for ...
Added: October 12, 2026
Singapore: Springer, 2026.
This volume presents the Proceedings of the 34th IUPAP Conference on Computational Physics (CCP2023), held in Kobe, Japan on August 4–8, 2023. It offers a collection of peer-reviewed articles that highlight recent developments in computational and simulation research across various areas of physics. Key topics include the use of data science, quantum computing, and machine ...
Added: October 12, 2026
Goncharov A., Chibisov A., Advanced Theory and Simulations 2023 Vol. 12 No. 13 Article 2200816
Designing stable quantum computers with the ability to correct errors responsibly requires a detailed understanding of the physical processes that underlie these devices. In this study, detailed quantum mechanical simulations of the atomic structure, charge distribution of electron density, and distribution and orientation of magnetic and quantum states as a function of applied external pressure ...
Added: October 11, 2026
Chibisov A., Gnidenko A., Chibisova M. et al., FlatChem 2023 Vol. 41 Article 100533
Manufacturing precise quantum computers with small errors in quantum operations, long coherence times, and low power consumption is the most important challenge in modern nanoelectronics. To understand the operating modes of such calculators in detail, both the optimal arrangement of the qubit system within the structure and changes in its magnetic properties must be comprehensively ...
Added: October 11, 2026
Mitin D. M., Pavlov A., Fedorov F. S. et al., Sensors and Actuators, B: Chemical 2024 Vol. 417 Article 136095
We report the approach to designing the hybrid gas sensor based on the array of vertically-oriented InAs nanowires and gas-permeable film made of single-walled carbon nanotubes (SWCNTs). We probe the sensor performance at room temperature towards isopropyl alcohol analyte, whose highest occupied molecular orbital energy to be in-between the Fermi levels of SWCNTs and InAs, to check the main contributing mechanism. Our theoretical analysis revealed ...
Added: January 30, 2025
Tang J., Xia Z., Bin Q. et al., Optica 2024 Vol. 11 No. 8 P. 1103–1112
In the exploration of collective dynamics and advanced information processing, synchronization and frequency locking
of mechanical oscillations are cornerstone phenomena. Traditional synchronization techniques, which typically involve
a single mechanical mode, are limited by their inability to distinguish between intrinsic mechanical oscillations and
external signals after locking. Addressing this challenge, we introduce a parametric approach that enables simultaneous frequency ...
Added: November 8, 2024
Duleba A., Pugachev M., Mark Blumenau et al., Micromachines 2024 Vol. 15 No. 1 Article 94
Most 2D materials are unstable under ambient conditions. Assembly of van der Waals heterostructures in the inert atmosphere of the glove box with ex situ lithography partially solves the problem of device fabrication out of unstable materials. In our paper, we demonstrate an approach to the next-generation inert-atmosphere (nitrogen, <20 ppm oxygen content) fabrication setup, ...
Added: February 15, 2024
Pugachev M., Duleba A., Arslan A. Galiullin et al., Micromachines 2021 Vol. 12 No. 8 Article 850
The fast and precise fabrication of micro-devices based on single flakes of novel 2D materials and stacked heterostructures is vital for exploration of novel functionalities. In this paper, we demonstrate a fast high-resolution contact mask lithography through a simple upgrade of metallographic optical microscope. Suggested kit for the micromask lithography is compact and easily compatible ...
Added: November 14, 2022
Arbenin A., Petrov A., Nazarov D. et al., Chemosensors 2022 Vol. 10 No. 10 Article 433
The spherical diffusion that occurs when using ultramicroelectrodes (i.e., electrodes with a characteristic size of 1–10 µm) contributes to a higher mass transfer rate. This leads to equalization of the depletion rates of the near-electrode layer due to the electrochemical reaction and to the supply of the product from the solution depth. This is the ...
Added: November 1, 2022
Минтаиров С. А., С.А. Блохин, Калюжный Н. А. et al., Письма в Журнал технической физики 2022 Т. 48 № 4 С. 32–35
High-speed photodetectors based on InGaAs/GaAs quantum well–dot nanostructures have been investigated. A bandwidth of 8.2 GHz at a level of ‒3 dB and a wavelength of 905 nm has been demonstrated. It is shown that the speed of internal processes in quantum well–dots make it possible to create photodetectors with a bandwidth of up to ...
Added: August 11, 2022
Grebenko A., Bubis A., Motovilov K. et al., Advanced Functional Materials 2021 Vol. 31 No. 27 Article 2101533
A variety of unconventional materials, including biological nanostructures, organic and hybrid semiconductors, as well as monolayer, and other low-dimensional systems, are actively explored. They are usually incompatible with standard lithographic techniques that use harsh organic solvents and other detrimental processing. Here, a new class of green and gentle lithographic resists, compatible with delicate materials and ...
Added: December 5, 2021
T.V. Pavlova, Шевлюга В. М., B.V. Andryushechkin et al., Applied Surface Science 2020 Vol. 509 P. 145235
We report the realization of STM-based lithography with silicon layers removal on the chlorinated Si(100)-2x1 surface at 77K. In contrast to other STM lithography studies, we were able to remove locally both chlorine and silicon atoms. Most of the etched pits have a lateral size of 10-20A and a depth of 1-5A. In the pits in ...
Added: May 18, 2020
Melentiev P. N., Afanasyev A., Balykin V. I., Квантовая электроника 2017 Т. 47 № 9 С. 818–826
We report a brief review of the results of experimental studies on the nonlinear optical interaction of laser radiation with a hybrid plasmonic nanostructure, i.e. a split hole resonator (SHR). We demonstrate second- and third-harmonic generation and mixed-frequency generation from a single SHR nanostructure. The practi-cal application potential of an SHR nanostructure as a nanoprobe ...
Added: December 3, 2019
Loganathan N., Yazaydin A. O., Bowers G. M. et al., Journal of Physical Chemistry C 2017 Vol. 121 No. 44 P. 24527–24540
Grand Canonical Molecular Dynamics (GCMD) simulations were performed to investigate the intercalation of CO2 and H2O molecules in the interlayers of the smectite clay, Na-hectorite, at temperatures and pressures relevant to petroleum reservoir and geological carbon sequestration conditions and in equilibrium with H2O-saturated CO2. The computed adsorption isotherms indicate that CO2 molecules enter the interlayer ...
Added: November 11, 2017
Mishra R. K., Kunhi Mohamed A., Geissbühler D. et al., Cement and Concrete Research 2017 Vol. 102 P. 68–89
This paper reviews atomistic force field parameterizations for molecular simulations of cementitious minerals, such as tricalcium silicate (C3S), portlandite (CH), tobermorites (model C-S-H). Computational techniques applied to these materials include classical molecular simulations, density functional theory and energy minimization. Such simulations hold promise to capture the nanoscale mechanisms operating in cementitious materials and guide in ...
Added: November 11, 2017
Антонов А. В., Никифоров К. Г., Bondarenko G., Перспективные материалы 2010 № 4 С. 21–25
Исследованы процессы спинового транспорта в наноразмерных спинтронных структурах "ферромагнитный полупроводник – немагнитный полупроводник" CdCr2Se4/CdIn2S4 и HgCr2Se4/CdIn2S4 с низкой степенью рассогласования кристаллических решеток. Проанализированы спин-поляризованные туннельные токи в зависимости от ширины потенциального барьера, приложенного электрического и магнитного полей. Показана возможность использования данных спинтронных наноструктур в качестве эффективного спинового фильтра. ...
Added: April 12, 2012