Pavel Zelenovskiy

Pavel Zelenovskiy
Ural Federal University | UrFU · Institute of Natural Sciences and Mathematics

PhD

About

105
Publications
12,817
Reads
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1,256
Citations
Additional affiliations
October 2013 - present
Ural Federal University
Position
  • Professor (Associate)
May 2012 - present
Ural Federal University
Position
  • Senior Researcher
September 2007 - May 2012
Ural Gorkij State University
Position
  • Researcher

Publications

Publications (105)
Article
Piezoactive biomaterials are currently in the forefront of the worldwide research due to the multitude of applications ranging from implantable biosensors to biocompatible energy harvesters. Among them, biomolecular piezoelectrics based on amino acids and dipeptides (as exemplified by diphenylalanine, FF) are the most studied. Major problem is an i...
Article
Full-text available
The chirality quantification is of great importance in structural biology, where the differences in proteins twisting can provide essentially different physiological effects. However, this aspect of the chirality is still poorly studied for helix-like supramolecular structures. In this work, a method for chirality quantification based on the calcul...
Article
Full-text available
2D piezoelectric materials such as transition metal dichalcogenides are attracting significant attention because they offer various benefits over bulk piezoelectrics. In this work, the fabrication of layered biomolecular crystals of diphenylalanine (FF) obtained via a co-assembly of l,l- and d,d- enantiomers of FF monomers is reported. Their crysta...
Article
It was demonstrated that confocal Raman microscopy (CRM) could be used for domain imaging in the calcium orthovanadate Ca3(VO4)2 single crystals. The domain contrast could be achieved using noticeable intensity variations of the spectral band located near 854 cm⁻¹ occurring due to the influence of depolarization field produced by charged domain wal...
Article
DFT (VASP) and semi-empirical (HyperChem) calculations for the D-chiral diphenylalanine (D-FF) peptide nanotube (PNT) structures, empty and filled with water/ice clusters, are presented and analyzed. The obtained results show that after the optimization the dipole moment and polarization of both D-FF PNT and embedded water/ice cluster are enhanced;...
Article
The influence of implantation of single-walled carbon nanotubes (CNTs) on the electrical and structural properties of layered glassy materials AgGe1+xAs1−x(S+CNT)3, x = 0.4; 0.5; 0.6 were analyzed at high pressures of up to 50 GPa. It was revealed that, in these composite materials, CNTs increased the stability under high pressures in the range fro...
Article
DFT (VASP) and semi-empirical (HyperChem) calculations for the l- and d-chiral diphenylalanine (l-FF and d-FF) nanotube (PNT) structures, empty and filled with water/ice clusters, are presented and analyzed. The results obtained show that after optimization, the dipole moment and polarization of both chiral type l-FF and d-FF PNT and embedded water...
Article
Full-text available
The structures and properties of the diphenylalanine (FF) peptide nanotubes (PNTs), both L-chiral and D-chiral (L-FF and D-FF) and empty and filled with water/ice clusters, are presented and analyzed. DFT (VASP) and semi-empirical calculations (HyperChem) to study these structural and physical properties of PNTs (including ferroelectric) were used....
Article
The variation of elastic and electromechanical properties of microtubes of diphenylalanine dipeptide as a function of the degree of filing of nanochannels by water molecules is reported in this paper. Quantum chemical calculations reveal different contributions of water layers in the microtubes to Young's modulus and the effective piezoelectric coe...
Article
Full-text available
We report the first comprehensive micro‐Raman study of crichtonite group minerals (CGM) as inclusions in pyropic garnet grains from peridotite and pyroxenite mantle xenoliths of the Yakutian kimberlites as well as in garnet xenocrysts from the Aldan shield lamprophyres (Russia). The CGM form (i) morphologically oriented needles, lamellae, and short...
Article
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This work describes a novel approach to produce high quality release paper at lower cost than traditional methods. The anti-adhesive properties of release paper require the use of expensive machine glazed kraft or “Glassine” paper as the paper base. A series of polymer coatings including polyvinyl alcohol, carboxymethyl cellulose, polyethylene viny...
Article
Nanotubes of self-assembled dipeptides as exemplified by diphenylalanine (FF) demonstrate a wide range of useful functional properties such as high Young’s modulus, strong photoluminescence, remarkable piezoelectricity and pyroelectricity, optical waveguiding, etc., and became an object of the intensive research due to their ability to combine elec...
Article
Full-text available
Diphenylalanine microtubes have remarkable physical properties that allow one to use them in electronics. In this work, we measured polarised temperature-dependent Raman spectra in self-assembled diphenylalanine microtubes grown from the solution. We observed the anomalous temperature behaviour of the Raman lines. Their temperature changes were min...
Article
The optical properties of a monolayer of nanocomposite film (PMMA/gold nanocubes) were provided by fitting a proposed theoretical model to spectroscopic ellipsometry (SE) measurements. For such thin film, these features cannot be successfully determined by means of experimental and conventional effective medium theory such as Maxwell-Garnett or Bru...
Article
A series of precise nondestructive analytical methods (Raman spectroscopy, cathodoluminescence, and EBSD-electron backscatter diffraction) has been employed to investigate the internal textures of kyanite porphyroblasts from diamondiferous and diamond-free ultrahigh-pressure metamorphic rocks (Kokchetav massif, Northern Kazakhstan). Such internal k...
Article
The difference in crystal structure and growth kinetics of microtubes formed from L- and D- enantiomers of diphenylalanine dipeptide is investigated both experimentally and theoretically by computer simulation. The microtubes of L- and D- enantiomers grown simultaneously and under identical experimental conditions possess different crystallographic...
Article
Raman spectroscopy allows for semiquantitative analyses of major elements of tourmaline supergroup minerals. However, the new K‐bearing tourmaline (maruyamaite) species has not been calibrated yet and the effects of K in the X site of tourmaline on the Raman spectrum are still unclear. We investigated maruyamaite and K‐bearing dravite to test their...
Article
Formation of domain structure by electron beam irradiation in thermally depolarized Ce-doped strontium barium niobate single crystals with free surface and surface covered by dielectric layer has been studied. The dependences of the domain sizes and domain depth on the irradiated dose have been measured. The circular shape of isolated domains was o...
Article
Full-text available
Kyanite gneiss from the “New Barchinsky” locality (Kokchetav Massif) was studied in detail. This rock is characterized by zonal distribution of the C and SiO2 polymorphs in kyanite porphyroblasts: (1) cores with graphite and quartz inclusions; (2) clean overgrowth zone with inclusions of cuboctahedral diamond crystals. The Raman mapping of SiO2 pol...
Article
The structure and properties of diphenylalanine (FF) peptide nanotubes (PNT) based on phenylalanine were investigated by various molecular modeling methods. The main approach employed semi-empirical quantum-chemical methods (PM3 and AM1). Ab initio, density functional theory methods and molecular mechanical approaches were also used. Both model str...
Article
Gradient core-shell Zn-Cu-In-S/ZnS quantum dots (QDs) with small size and highly efficient photoluminescence were synthesized via multi-step high temperature method involving cation exchange. The procedure starts with the preparation of indium sulfide nanoparticles followed by addition of Cu- and Zn-precursors. At this stage, Zn replace Cu atoms an...
Article
The results are presented from studying the electrical properties of fullerene С70 crystals under pressures as high as 46 GPa and at temperatures ranging from 90 to 400 K. Pressure intervals with substantial variation of the electrical characteristics of C70 are determined. Raman spectra and the temperature dependences of the electrical resistance...
Article
Glycine is a well-known polymorphic amino acid extensively used as a precursor for proteins and a drug for treating various neurological diseases. Recently, giant piezoelectric response and ferroelectricity found in its β-phase have prompted intensive research aiming at controlled growth of this polymorph and at creating biocompatible piezoelectric...
Article
Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-xPT) single crystals exhibit ultrahigh piezoelectric property and have already been applied in various industrial fields. Here, spatial distribution of coexistent phases and corresponding local piezoelectric responses in a morphotropic phase boundary (MPB) PMN-xPT single crystal are thoroughly investigated by confocal...
Article
Ferroelectric materials with tailored domain structures are promising “smart” substrates providing additional degrees of functionality for the graphene-based devices. We demonstrate the effect of periodical domain structure in lithium niobate substrate on the electrical properties of graphene studied by Raman spectroscopy. The spatial variations of...
Article
Electric fields of different nature induced in lanthanum doped lead zirconate-titanate (PLZT) ceramics were studied by confocal Raman microscopy. Temperature dependence of the pyroelectric field was determined and the value of pyroelectric coefficient was estimated. An appearance of additional line in Raman spectrum of PLZT after e-beam irradiation...
Article
Thermal destruction of giant polyoxometalate (POM) high-symmetry nanoclusters (toroidal Mo 138 and Keplerates Mo 132 and Mo 72 Fe 30 ) was in situ investigated by Raman and IR spectroscopy. The key spectral features of POM integrity and destruction products were determined. Polarization Raman measurements of Keplerate nanoclusters carried out for t...
Article
Full-text available
We demonstrate the application of confocal Raman microscopy (CRM) for nondestructive imaging of ferroelectric domains both at the surface and in the bulk of lead magnesium niobate-lead titanate (PMN-PT) ferroelectric single crystals. The studied model periodical domain structure was created at a [001] cut of tetragonal-phase PMN-PT crystal by the e...
Article
Full-text available
In this work we demonstrate the structural similarity between nanotubes of dipeptide diphenylalanine and one-dimensional locally resonant metamaterials. We developed dynamical model of nanotubes, derived corresponding dispersion relations, and analyzed the origin of the behavior of their optical branch leading to band gap formation. We demonstrate...
Article
Full-text available
Lead free relaxor ferroelectrics have attracted continuing interest due to their outstanding and eco-friendly properties. In this paper, dielectric relaxation behavior of the 0.6BaTiO3-0.4Bi(Mg1/2Ti1/2)O3 ceramic (BT-40BMT), which is a typical lead free relaxor ferroelectric, is theoretically and experimentally investigated. At first, the observed...
Article
In this paper we report the synthesis of colloidal CdSe/CdS core-shell heteronanoplatelets with epitaxially grown wurtzite 1D CdS branches or legs by using cadmium diethyldithiocarbamate as a single source precursor. The growth of wurtzite branches was achieved by exploiting zinc blende-wurtzite polytypism of cadmium chalcogenides induced by oleyla...
Article
A series of novel (S)-amino acid derivatives bearing planar-chiral (3-acylamino-1,2-dicarba-closo-dodecaboran-1-yl)acetyl substituent was synthesized. Carboranyl amino esters were obtained in a diastereomerically pure form (according to chiral HPLC). Single crystals of individual diastereomers were studied by optical microscopy, X-ray diffraction a...
Article
The mechanism of N-phosphonomethyl iminodiacetic acid (PMIDA) binding with the Fe3O4 magnetic nanoparticle (MNPs) surface by Fourier transformed infrared spectroscopy, X-ray photoelectron spectroscopy and thermogravimetry was comprehensive studied. To study of microstructure, size and core structure of synthesized nanoparticles the scanning electro...
Article
In this work, we investigated the influence of piezoelectric ZnO and nonpiezoelectric SiO2 and TiO2 nanoparticles on the structure and some physical properties of composite structures based on microtubes of diphenylalanine. We demonstrated that all types of used nanoparticles promoted formation of voids and cavities in diphenylalanine microtubes th...
Article
Full-text available
Molecular modeling of diphenylalanine peptide nanotubes (FF PNT) is performed using PM3 method in HyperChem. The study focuses on the polar properties of FF PNT structures having different chiralities (L, D) and conformations (α-helix, β-sheet). The results show that the optimized structures for L-PNT possess higher polarization in both conformatio...
Article
Peptide-based nanostructures are very promising for nanotechnological applications due to their excellent self-assembly properties, biological and chemical flexibility, and unique multifunctional performance. However, one of the limiting factors for the integration of peptide assemblies into functional devices is poor control of their alignment and...
Article
Self-assembled peptide diphenylalanine (NH2-Phe-Phe-COOH, FF) is one of the most important emergent functional materials, demonstrating wide range of fascinating physical and chemical properties including biocompatibility, chemical variability, exceptional rigidity, outstanding piezoelectric, pyroelectric and ferroelectric responses. Up to now, the...
Article
Full-text available
Precise measurements of local transversal Young's moduli of as-grown and annealed nanotubes of diphenylalanine have been performed by mechanical nanoindentation. Evaporation of water from the nanochannels leads to pronounced reduction of the values' dispersion, and the characteristic value coincides with previous theoretical estimations. The experi...
Article
Full-text available
Confocal Raman microscopy (CRM) is a powerful tool for investigation of ferroelectric domains. Mechanical stresses and electric fields existed in the vicinity of neutral and charged domain walls modify frequency, intensity and width of spectral lines [1], thus allowing to visualize micro- and nanodomain structures both at the surface and in the bul...
Article
In this paper, the relaxation behavior and electrical inhomogeneity of the 0.9BaTiO3- 0.1Bi(Mg1/2Ti1/2)O3 ceramic which exhibits outstanding temperature stable dielectric and energy storage properties are investigated. The relaxation process is well described by the empirical Vogel-Fulcher law, also indicating a freezing process in the system simul...
Article
Various structural features, such as proton disorder or noncovalent interactions, determine the existence of switchable nonlinear optical properties under varying external conditions. Thus, for the single crystal of diiodobutenyl-bis-thioquinolinium triiodide with the bridge hydrogen atom, previously characterized under ambient conditions by C2/c s...
Article
Self-assembly of ferroelectric materials attracts significant interest because it offers a promising fabrication route to novel structures useful for microelectronic devices such as non-volatile memories, integrated sensors/actuators, or energy harvesters. In this work, we demonstrate a novel approach for self-assembly of organic ferroelectrics (as...
Article
Mantle-derived lherzolitic and harzburgitic Cr-pyropes from lamprophyres of the Chompolo field (Central Aldan superterrane, North Asian Craton) were studied usingmicro-Raman spectroscopy and electronmicroprobe microanalysis. These garnets enclose graphite coexisting with forsterite, diopside, Ba-Cl-phlogopite, tschermakite, rutile, magnesiochromite...
Article
Full-text available
Confocal 2D and 3D Raman imaging was applied to SiO2 inclusions in kyanite porphyroblasts from diamond‐bearing kyanite gneisses of the Kokchetav Massif (Northern Kazakhstan). The study reveals a mineral assemblage of coesite‐disordered graphite which is forbidden in ultrahigh pressure‐high temperature (UHP‐HT) metamorphic complexes. Disordered grap...
Article
Existence of defects is an inherent property of real materials. Due to an explicit correlation between defects concentration and conductivity, it is important to understand the order and origins of the structural heterogeneity for any particulate electrode material. Poor conductive lithium titanate Li4Ti5O12 (LTO), widely used in batteries for grid...
Article
Local morphological features and piezoelectric properties of films and bulk crystals of ortho-carboranyl derivatives of (S)-asparagine and (S)-glutamine have been investigated at nanoscale by atomic force and piezoresponse force microscopies. Both films and bulk crystals of the studied compounds demonstrated a very high piezoelectric response excee...
Article
We have studied the self-organized dendrite domain structures appeared as a result of polarization reversal in the uniform field in lithium niobate single crystals with the artificial surface layer created by proton exchange. We have revealed the self-organized sub-micron scale dendrite domain patterns consisting of domain stripes oriented along th...
Article
Synthesis of any material results not only in the fabrication of the desired composition, but also some amount of undesired second phases. Here we demonstrate that structural heterogeneity in a negative electrode material Li4Ti5O12 with sub-micron grain size synthesized using standard solid-state method can be described locally via structural chara...
Article
We report the results of studies of electrical resistance of double-walled carbon nanotubes (DWCNT) at pressure up to 50 GPa and room temperature. We detect a complex dependence of the electrical resistance of double-walled nanotubes on their structural state, which varies with pressure. Raman spectra of the sample of DWCNTs were recorded at pressu...
Article
Peptide nanotubes based on short dipeptide diphenylalanine (FF) attract a lot of attention due to their unique physical properties ranging from strong piezoelectricity to extraordinary mechanical rigidity. In this work, we present the results of high-resolution Piezoresponse Force Microscopy (PFM) measurements in FF microtubes prepared from the sol...
Article
The elastic properties of the nanotubes of self-assembled aromatic dipeptide diphenylalanine are investigated by means of Raman spectroscopy and a mass-in-mass 1D model. Analysis of nanotubes' lattice vibrations reveals the essential contribution of the water in the nanochannel core of the tubes to the Young's modulus and high water mobility along...
Article
Full-text available
Relations of graphite and diamond have been studied in a garnet-kyanite-clinopyroxene+sulfide+coesite/ quartz+diamond+graphite eclogite xenolith from the Udachnaya-East kimberlite pipe in the Yakutian diamond province. Euhedral crystals of diamond and graphite occur in the intra-and intergranular space. The equilibrium conditions of diamond formati...
Conference Paper
Full-text available
Fast growth of battery market driven by electric vehicle (EV) and stationary energy storage system (ESS) segments has stimulated interest for lithium titanate Li4Ti5O12 (LTO) with its low cost, perfect cycleability and excellent safety. Whereas low electric conductivity (10-8 ÷ 10–13 S/cm) is the main drawback of LTO, it can be compensated by the g...
Article
Full-text available
A xenolith of eclogite from the kimberlite pipe Udachnaya–East, Yakutia Grt+Cpx+Ky + S + Coe/Qtz + Dia + Gr has been studied. Graphite inclusions in diamond have been studied in detail by Confocal Raman (CR) mapping. The graphite inclusion in diamond has a highly ordered structure and is characterized by a substantial shift in the band (about 1580...
Conference Paper
Full-text available
Fast growth of battery market driven by electric vehicle (EV) and stationary energy storage system (ESS) segments has stimulated interest for lithium titanate Li4Ti5O12 (LTO) with its low cost, perfect cycleability and excellent safety. Whereas low electric conductivity (10-8 ÷ 10–13 S/cm) is a weak point of LTO, it can be compensated by the grain...
Article
Full-text available
The formation of self-assembled ferroelectric glycine films of various morphologies by spin coating technique was investigated. The film morphology varied from dendritic feather-like structure to arrays of individual micro- and nanoislands and 15 nm-thick layers. It was confirmed by confocal Raman microscopy that most of the films belonged to ferro...
Article
Full-text available
The domain structure evolution has been studied in congruent lithium niobate crystals with surface layers modified by three different proton exchange techniques. The significant decrease of the nucleation threshold field and qualitative change of domain rays nucleation and growth have been revealed. The formation of a broad domain boundary and dend...
Article
In this work computational molecular modeling of β-glycine nanostructures is presented, using various approaches, mostly semi-empirical quantum approximation PM3 type in HyperChem software in restricted Hartree-Fock calculations. The main aims of present studies focus on the molecular modeling for the β-glycine domains and domain walls formation an...
Article
Local piezoelectric and ferroelectric properties as well as morphology of single crystals and films of two novel chiral organic compounds derived from chiral 2-methoxy and 2-amino acids have been investigated. The crystals demonstrated piezoelectric response exceeding that of lithium niobate. The piezoelectric response was registered also in compou...
Article
Full-text available
Formation of the original dendrite snowflake-shape domains during fast cooling after heating above phase transition temperature by pulse laser irradiation was revealed in congruent lithium tantalate crystals. The effect was attributed to polarization reversal under the action of spatially nonuniform pyroelectric field. Two stages of the domain shap...
Article
Self-assembly of supramolecular biomaterials such as proteins or peptides has revealed a great potential of using them in various applications ranging from scaffolds for cell culture to light-emitting diodes and piezoelectric transducers. Many of these applications require a controlled growth of individual objects in the configuration allowing simp...
Conference Paper
Full-text available
Local functional and structural characterization made by different modes of scanning probe microscopy (SPM) and micro-Raman technique is used for measuring properties of materials both for electrode materials of li-ion batteries and electrolyte material of solid oxide fuel cells. Growing demand for energy storage and conversion systems stimulates d...