Materials Literature
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In order to the feasibility of silk materials as protein delivery system, silk beads incorporated with bovine serum albumin (BSA) were prepared by dropping silk fibroin extract into dope solution composed of ethanol and dichloromethane. Structural and morphological characteristics of silk beads were examined using sca…
Phase and structural behaviour in the SmCoO₃-SmFeO₃ pseudobinary system has been investigated at the ambient conditions in a whole concentration range by means of X-ray powder diffraction technique applied laboratory and synchrotron radiation sources. Series of mixed samarium cobaltites-ferrites SmCo₁₋xFexO₃ was obtai…
Pure and densely packed CdS nanoparticles (NPs) were prepared at room temperature in Argon atmosphere by nanosecond (ns) pulsed laser ablation (PLA) at high laser fluence. The scanning electron microscopy (SEM) images of these NPs exhibited a non-uniform and high density distribution. The average size of NPs was about…
Natural rubber /Zinc Oxide (NR/ZnO) nanocomposites are fabricated by blending natural rubber latex with aqueous suspension of nanoZnO particles. Its morphology and thermal/thermooxidative ageing resistance are investigated with scanning electron microscopy (SEM) and thermogravimetric analyzer (TGA). The results show t…
Recent in situ TEM experiments observed that single crystalline gold particles with diameter ranging from 300 to 700 nm suddenly collapse, accompanying numerous dislocations escaping from the free surface during a flat punch pushing toward the particle. This collapse is catastrophic for the microdevices in service. In…
Detection of ultraviolet images is proved to be both effective and convenient in discharge monitoring nowadays. In a self-designed gas chamber with observation windows installed, characteristics of 50-Hz ac discharges in SF6atmosphere were observed in the needle-to-plane model and the floating potential model. Ultravi…
Abstract In this paper, we report a chemical way to resolve longer motions units in the glass-rubber transition region of poly (ethyl acrylate) (PEA), so called internal plasticization. The ethyl acrylate (EA) monomers were copolymerized with little amount of isoprene (IP) monomers. We propose that the single bonds ad…
An analytical model is developed for high-velocity perforation of moderately thick, plain-woven laminated plates by deformable blunt projectiles. Based on different mechanical states and energy-dissipative mechanisms, penetration is divided into three consecutive stages: cratering and mushrooming, shearing and compres…
The structure of the starch/styrene-butadiene latex composites was characterized using Scanning Electron Microscopy (SEM). In order to get a better contrast between starch and latex, OsO 4 were used to stain latex. Ion-beam cutting and liquid nitrogen cracking were employed to fabricate qualified cross-sections for SE…
This paper presents a brief summary on a relatively new plasma aided electrolytic surface treatment process for light metals. A brief discussion regarding the advantages, principle, process parameters and applications of this process is discussed. The process owes its origin to Sluginov who discovered an arc discharge…
Abstract The morphology and crystallography of phases in the Cu‐0.12 % Zr alloy were investigated by scanning electron microscope (SEM), transmission electron microscope (TEM), and high‐resolution transmission electron microscope (HRTEM). The results show that the as‐cast microstructure of Cu–Zr alloy is mainly Cu mat…
Fabrication of nanofibrous biomaterials based on natural materials through various techniques is a popular research topic, particularly for biomedical applications. Electrospinning, a well-established technique for nanofiber production has also been extended for producing nanofibrous structures of natural materials th…
Using the complex variable function method and the technique of conformal mapping, the fracture mechanics of two symmetric collinear cracks originating from an elliptical hole in a one-dimensional (1D) hexagonal piezoelectric quasicrystals (QCs) are investigated under anti-plane shear loading and electric loading. The…
Abstract The purification of hen egg white lysozyme from a lysozyme/crude extract mixture was carried out by the solvent‐freeze‐out (SFO) technology on the laboratory scale. Compared to previous works, this investigation focuses on the crystallization of lysozyme from a complicated system. The crystallization conditio…
A series of novel yellowish-green-emitting K1+xBa1−2xTbxBP2O8 (0.02 ≤ x ≤ 0.15) phosphors were first synthesized by a high-temperature solid-state reaction method, and their phase purity as well as photoluminescence properties were investigated by X-ray diffraction (XRD) and fluorescence spectroscopy (FS) measurements…
The reaction of 5,10,15-tris(4-tert-butylphenyl)corrole with 2,3-bis(bromomethyl)-5,6-dicyanopyrazine provides a new example of corrole ring expansion to a hemiporphycene derivative. The ring expansion is regioselective, with insertion of the pyrazine derivative at the 5-position of the corrole ring, affording the cor…
Two-dimensional (2D) nanosheets with distinctive properties are often fabricated by exfoliation, hydrothermal synthesis, or vapor-phase reaction. While these approaches are useful to generate nanosheets, we show that free-floating 2D metal oxide flakes with nanometer-scale thickness can also be formed by atomic layer…
We report on the temperature dependence of the phonons and crystallographic parameters in ${\mathrm{BiMnO}}_{3}$ single crystals grown under high pressure and high temperature. The crystallographic structure of the sample was refined from room temperature to liquid helium temperature in the centrosymmetric $C2/c$ spac…
A new nanostructure poly(amide-imide) (PAI) was prepared from the polymerization of 4,4′-methylenebis(3-chloro-2,6-diethyl trimellitimidobenzene) as a diacid with 3,5-diamino-N-(4-hydroxyphenyl)benzamide using triphenyl phosphite as a condensing agent and tetra-n-butylammonium bromide as a green media. The synthesized…
The objective of this study was to evaluate the replacement of wood flour by Turkish pine bark residues for production of wood plastic composites. High density polyethylene was chosen as matrix and seven different compositions were used for production of composites. In order to compare the effect of bark residues flou…