Materials Literature
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BACKGROUND: Molecular dynamics (MD) simulations provide valuable information on the conformational changes that accompany time-dependent motions in proteins. The reported crystal structure of rat prestin (PDB 3LLO) is remarkable for an α1-α2 inter-helical angle that differs substantially from those observed in bacteri…
It has been a persistent challenge to develop ordered conducting polymer nano- and micro-structures with a high active area. We herein report the method to produce and characterise a network of nanometre-sized walls (nano-walls) which forms on the surface of a conducting co-polymer composite film based on bithiophene…
A doped state of heterostructure, based on chemical vapour deposition grown graphene and polyelectrolytes (polyallylamine hydrochloride and polyacrylic acid), has been studied. The doping was realized electrochemically by application of an electrode potential in LiClO4–acetonitrile electrolyte solution. Our new setup…
The subject matter of the article is a non-stationary axially symmetric goal for a round flat bimorph plate affecting end faces of electric potential which in itself is an arbitrary time function. The designed model allows to take into account the peculiarity of the electric-field pattern based on same inner electrode…
Asymmetric hetero-assembly of two kinds of colloidal nanoparticles (NPs) was achieved by "crash reaction" in a density gradient centrifugation system using Au NPs as an example. Centrifugal force was applied to overcome the Brownian motion effect and cause NPs' directional movements. A water-oil interface was introduc…
Shrinkage porosity as a volume change related casting defect in lamellar cast iron was reported in the literature to form during solidification in connection to the dendrite coherency. The present work includes an experimental study on dendrite coherency – also called columnar-to-equiaxed transition in lamellar cast i…
Nanostructured and ultrafine grained metallic materials have received great attention in recent times because of their unique mechanical, physical properties and high performance. High specific strength of the material is critical for many structural applications in automotive and aerospace design. Different technique…
A brittle-to-ductile transition in the phase morphology is found in dynamically asymmetric PS/PVME blend with increasing quench depth.
The geometric, energetic, and magnetic properties of nonmagnetic carbon (C)-doped cadmium sulfur (CdS) nanowires (NWs) are investigated based on first-principles calculations. We find that the two C dopants are most stable when they are close to each other in the surface sites, exhibiting half-metallic (HM) behavior w…
In the present work, a comparative study of antibacterial activity and synergistic effects of triangular silver nanoparticles in combination with two standard antibiotics is discussed for Staphylococcus aureus and Pseudomonas aeruginosa. A green route was developed to synthesise silver nanoparticles in which silver ox…
Au nanorod plasmonic superstructures with a high degree of optical anisotropy were used for demonstration of a novel plasmonic encoding system.
A class of luminescent porous, spherical silica nanoparticles have been synthesized using simple oil-in-water microemulsion process in the size range of 15-50 nm evident from TEM and FESEM analysis. Mechanism of successful stabilization of chlorophyll molecule inside the nanoparticles has been evaluated by FTIR studie…
Epitaxial layers of silicon carbide of the 3C-polytype are prepared by magnetron sputtering on Si(111) substrates of structural perfection with ω θ = 1.4°. The crystalline structure and surface morphology of the 3C-SiC/Si(111) heterostructures depending on film thickness are studied by X-ray diffraction, Raman scatter…
Most researches on the mechanisms of impact welding in general base their results on the investigation of the joint area after the process, primarily by destructive testing. A detailed analysis of the joining process itself, especially concerning electromagnetic pulse welding, has not been performed yet and thus leads…
To reduce CO 2 emission, the utilization of biodiesel fuel (BDF) has expanded worldwide last decade. Accordingly, more and more glycerol that is a by-product of the BDF production process is discharged, and an effective conversion of glycerol into valuable substances has been desired. In this article, we describe a st…
The historical reasons for the formation of approaches to biogeography and distribution of diatoms are analyzed. One of the prevailing concepts was cosmopolitan distribution of diatoms. Approach described by sentence "everything is everywhere, the environment selects" is discussed. The idea concerning local distributi…
Pyrococcus furiosus is a hyperthermophilic archaea. A hypothetical protein of this archaea, PF0847, was selected for computational analysis. Basic local alignment search tool and multiple sequence alignment (MSA) tool were employed to search for related proteins. Both the secondary and tertiary structure prediction we…
We address the thermal control of the quasi-static evolutionof a polycrystalline shape memory alloy specimen. Thethermomechanical evolution of the body is described by means of an extension of thephenomenological Souza-Auricchio model [6,7,8,57] accounting also for permanent inelastic effects [9,11,27]. By assuming to…
Cysteine capped ZnTe nanoparticles have been synthesized using a simple solution based route. The growth mechanism of the particles under certain reaction conditions suggests an oriented attachment mechanism. The particles show potential for bio imaging applications.
We have investigated electronic and magnetic properties of a (110) film of half-metallic Heusler Fe2CrSi by the first-principle band calculations and have found that the (110) film is not half-metallic but has a high spin polarization ( P = 82%). The result for Fe2CrSi/Fe2VAl interface shows that the spin polarization…