Materials Literature
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In order to make best use of the superior electrochemical properties of nickel sulfide (NiS) as an electrode material for supercapacitors, increase in surface area through electrode nanostructuring is one of the major issues. However, currently used NiS nanostructuring methods, such as hydrothermal and solvothermal te…
We explored high-field (60 T) magneto-resistance (MR) with two carbon nanotube (CNT) material classes: (1) unaligned single-wall CNTs (SWCNT) films with controlled metallic SWCNT concentrations and doping degree and (2) CNT fiber with aligned, long-length microstructure. All unaligned SWCNT films showed localized hopp…
Magnesium (Mg) and Mg-based alloys are promising materials for biodegradable implant applications. Electrolyte composition, temperature, and dynamic conditions can differ strongly for in vitro and in vivo environments. In the present work, a direct comparison of two established electrolyte systems—simulated body fluid…
This paper presents a review on hydrogels applied to agriculture emphasizing on the use of natural fibers. The objectives were to examine, trends in research addressed to identify natural fibers used in hydrogels development and methods for modifying natural fibers, understand factors which determine the water retenti…
In this paper, a tangential network transmission theory is established for the reflective metasurface composed of periodic subwavelength metallic elements and a perfect electrical conductor (PEC)-backed substrate. The theory is divided into two parts. The first part shows that the oblique incidence can be handled the…
One-pot facile synthesis and characterization of novel β-substituted meso-tetraphenylporphyrins and/or chlorins were described. The high regioselective reactivity of active methylene compounds in Michael addition reaction was reported to access β-substituted trans-chlorins. Size-dependent approach was applied for the…
Abstract Coupling spins of molecular magnets to two-dimensional (2D) materials provides a framework to manipulate the magneto-conductance of 2D materials. However, with most molecules, the spin coupling is usually weak and devices fabricated from these require operation at low temperatures, which prevents practical ap…
We analyze the low-temperature photoluminescence spectra from two-dimensional electron systems (2DESs) confined at ${\mathrm{Mg}}_{x}{\mathrm{Zn}}_{1\ensuremath{-}x}\mathrm{O}$/ZnO heterojunctions as the electron density is decreased from $2.3\ifmmode\times\else\texttimes\fi{}{10}^{12}$ to $3.5\ifmmode\times\else\text…
Hysteresis is detrimental to the refrigeration cooling cycle efficiency and yet many of the magnetocaloric materials under consideration as solid state refrigerants possess this property. This article discusses some aspects related to the factors leading to hysteresis in real materials. In the absence of high quality…
Phase diagram of FeVO4-CrVO4 solid solutions pertinent with structural and magnetic phases is presented with unambiguous experimental evidences. Solid solutions Fe1–xCrxVO4 (0 ≤ x ≤ 1.0) were synthesized through the standard solid state route and studied by X-ray diffraction, scanning electron microscopy, energy dispe…
We propose an analytical model for a superelastic shape memory alloy (SMA) beam. The model considers reversible phase transformation between austenite and a single martensite variant driven by mechanical loading/unloading. In particular, we consider a cantilever beam subjected to a concentrated transverse force acting…
We investigate the microstructure evolution of Ag-alloyed PbTe compounds for thermoelectric (TE) applications with or without additions of 0.04 at. % Bi. We control the nucleation and temporal evolution of Ag2Te-precipitates in the PbTe-matrix applying designated aging heat treatments, aiming to achieve homogeneous di…
In this letter, we investigated the temperature dependence of the in-plane (E12g) and out-of-plane (A1g) Raman modes of multi-walled MoS2 nanotubes fabricated from anodic aluminum oxide (AAO) templates. The frequencies of these two phonon modes were found to vary linearly with temperature. In this linear region, the f…
Abstract Plasmonic metamaterials and metasurfaces are important for many linear and nonlinear photonic applications. Here, the possibility to control a nanostructured layer spontaneously formed near an interface of a thin silver film is shown, where the interplay between a grain boundary structure and surface segregat…
Two AIE active α-cyanostilbene fluorophores substituted with octyl and hexadecyl chains were synthesized and examined for their absorption and fluorescence properties. The alkoxy substitution tunes the self-assembly in water and exhibits an intensity enhanced bathochromic shift, resulting in well-defined nanospheres w…
Due to the absence of lactone form of hydroxycamptothecin, the commercially available hydroxycamptothecin injection exhibits inefficient therapeutic effects. In this study, we constructed a novel delivery system (thermosensitive magnetic liposomes) that protects lactone form of hydroxycamptothecin from blood or water.…
The inhibitory effects of depolymerized alkaline soda (OSL), kraft (OKL) and organosolv (OOL) lignin products via nitrobenzene oxidation method on mild steel corrosion in 1.0 M HCl medium were investigated by using weight loss measurement, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS)…
An unprecedented Dy 8 cluster, [Dy 8 (μ 4 -O)(μ 3 -OH) 8 (vht) 4 (NO 3 ) 2 (H 2 O) 8 ](NO 3 ) 4, composed of two fused and distorted [Dy 4 (μ 3 -OH) 4 ] 8+ cubane units is reported. The bridging of the two cubanes occurs through a planar μ 4 -O (oxide) moiety, and leads to the largest reported distortion of the Dy-O-D…
Using the tight-binding approach coupled with mean-field Hubbard model, we theoretically study the effect of mechanical deformations on the magnetic properties of bilayer graphene (BLG) quantum dots (QDs). Results are obtained for AA- and AB(Bernal)-stacked BLG QDs, considering different geometries (hexagonal, triangu…
We have demonstrated the frequency dependence of the tunnel-type magneto-dielectric (TMD) effect in superparamagnetic Cox−(MgF2)1–x granular nanostructures by precise variations of x from 0.06 to 0.2. The structures consist of the nanometer-sized Co granules embedded in a crystallized MgF2 dielectric matrix. We observ…