Materials Literature
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Starting from the second law of thermodynamics applied to an isolated system consisting of the system surrounded by an extremely large medium, we formulate a general nonequilibrium thermodynamic description of the system when it is out of thermal and mechanical equilibrium with the medium. Our approach allows us to id…
Abstract The composites of solution polymerized styrene‐butadiene rubber (SSBR) filled with SiO 2 /carbon black (CB) were prepared by reaction blending. The mechanical and antistatic properties were studied. The morphology and dispersion of the two kinds of nano‐fillers in the composites were observed. The results sho…
We have theoretically investigated the electronic and magnetic properties of graphene whose zigzag edges are oxidized. The alteration of these properties by adsorption of ${\text{H}}_{2}\text{O}$ and ${\text{NH}}_{3}$ molecules has been considered. It was found that the adsorbed molecules form a cluster along the oxid…
The synthesis and characterization of gold nanoparticles coated by Gd-chelate (GdL@Au) is described, where L is a conjugate of DTPA (DTPA = diethylenetriamine-N,N,N',N",N"-pentaacetic acid) and 4-aminothiophenol. These particles are obtained by the replacement of citrate from the gold nanoparticle surfaces with gadoli…
We analyze the magnetic behavior of well-characterized, precipitate-free ${\text{Ga}}_{1\ensuremath{-}x}{\text{Mn}}_{x}\text{N}$ thin films containing Mn at higher levels than previously attained; up to $x=0.36$. This level is above the percolation threshold ${x}_{c}$ for nearest-neighbor cations, such that exchange b…
Abstract This article is concerned with the effects of nanosized silver colloids on the antibacterial properties of silk fibers against two kinds of bacteria: Staphylococcus aureus and Escherichia coli. Different concentrations of silver nanoparticles (Ag NPs; 10, 25, 50, and 100 ppm) were applied to silk fibers by an…
Using perhaps the most comprehensive data set for the plasma polymerisation of acrylic acid (AA) currently available, the hypothesis that different plasma regimes for AA may be revealed by plotting the deposition rate normalised by flow rate (Rm/F) against the composite parameter of (W/F)−1, where W is the plasma powe…
We demonstrate the possible application of the sandwich type surface-enhanced Raman scattering (SERS) immunoassay using antigen-antibody binding for detection of prostate-specific antigen (PSA) in cancer cells. In this sandwich type of SERS immunoassay, to capture antigens onto the immobilized layer of antibodies on t…
Interactions of NO(2) and NO (the product of NO(2) reduction by carbon) with biomass-based carbonaceous materials with silver nanoparticles deposited on the surface were studied. The surface of the materials was characterized using adsorption of nitrogen, X-ray diffraction (XRD), scanning electron microscopy (SEM), Fo…
Abstract Wood plastic composites (WPCs) are a new class of materials which combine the characteristics of plastic and wood. In appearance, they are similar to wood, but the low stiffness of plastics makes the composite modulus significantly lower than that of solid wood. Increasing the wood content in the WPCs can imp…
Chemisorption of pyridine and atmospheric CO 2 followed by means of visible Raman and DRIFT spectroscopy were employed to investigate the surface acidity and structure of as-prepared SrTiO 3 (STO) samples synthesized using three different approaches, solid-state reaction, molten salt, and sol-precipitation–hydrotherma…
We have investigated the upper critical field anisotropy and magnetotransport properties of ${\text{Fe}}_{1.14(1)}{\text{Te}}_{0.91(2)}{\text{S}}_{0.09(2)}$ single crystals in stable magnetic fields up to 35 T. The results show that ${\ensuremath{\mu}}_{0}{H}_{c2}(T)$ along the $c$ axis and in the $ab$ plane exhibit s…
Abstract We report the first direct comparison of melt‐extruded polypropylene–single‐walled carbon nanotube (PP/SWNT) nanocomposites prepared by three different initial mixing methods. The standard deviation of the G‐band intensity obtained using Raman mapping was found to be the best measure of dispersion uniformity…
Polyurethanes (PURs) are very versatile polymeric materials with a wide range of physical and chemical properties. PURs have desirable properties such as high abrasion resistance, tear strength, shock absorption, flexibility and elasticity. Although they have relatively poor thermal stability, this can be improved by…
Abstract Luminescence‐functionalized silica composites were synthesized by deposition of CaWO 4 :Tb 3+ nanoparticles onto mesoporous silica (MS) materials by a Pechini‐type sol–gel process. The pristine mesoporous silica materials comprise rod‐like and spherical SBA‐15‐type silica materials in micron size, hollow sili…
Abstract We achieved single‐molecule surface‐enhanced Raman scattering (SM‐SERS) spectra from ultralow concentrations (10 −15 M) of fullerene C 60 on uniformly assembled Au nanoparticles. It was found that resonant excitation at 785 nm is a powerful tool to probe SM‐SERS in this system. The appearance of additional ba…
The steady propagation of planar cracks in quasi-crystalline bodies with velocity lower than the one of bulk elastic macroscopic waves is under scrutiny. Closed-form solutions to the balance laws are provided. Unusual Mach number limits are determined. Numerical experiments describing peculiar aspects of the crack pro…
Abstract BACKGROUND: The surge of studies on artificial and natural nanoparticles has revealed a new world for engineering and life sciences, but in most instances, the small scale has made their number‐concentration determination in liquids a challenging problem. Former success has mostly been limited to special part…
Abstract The objective of the study is to investigate the effect of inclusion of nanotalc on the strength properties of polyamide 6 (PA6)‐based binary and ternary nanocomposites. Binary nanocomposites were prepared by melt compounding of PA6 with varying content of nanotalc (1, 2, and 4 wt%). Ternary nanocomposites we…
Various one-, two- and three-dimensional Group 14 (C, Si, Ge, Sn, and Pb) element structures at P = 1 atm are studied in this work. As expected, coordination number (CN)--not an unambiguous concept for extended structures--plays an important part in the stability of structures. Carbon not only favors four-coordination…