Materials Literature
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Composite silk fibroin/chitosan nanofiber membrane was fabricated by bubbfil electrospinning. The influence of chitosan content on composite membrane's microstructure, mechanical property, and the percentage of water-dissolved were studied experimentally. The result indicated that the crystallinity of electrospun memb…
Semiconductor (SC) quantum dots (QDs) have recently been fabricated by both chemical and plasma techniques for specific absorption and emission of light. Their optical properties are governed by the size of the QD and the chemistry of any passivation at their surface. Here, we decouple the effects of confinement and p…
Process in which double potassium-ammonium sulfate is produced from potassium chloride and sulfuric acid was studied. A thermal analysis of the compound KNH 4 SO 4 was made and the melting and decomposition points of double potassium-ammonium sulfate were determined. An X-ray phase analysis revealed the processes occu…
The mesomorphic properties of new bent-core mesogens, coupled with the detailed analysis of the molecular packing of the related three-ring compounds is presented.
An Alternative Way to Prepare Biocompatible Nanotags with Increased Reproducibility of Results Aggregation of nanoparticles (NP) occurs mostly during and after their biofunctionalization. Aggregations can lead to disfunction of the biomolecule which binds to NP like antibodies or enzymes. In many cases, disfunctions a…
We report on the observation of the strain-induced oriented alignment of graphene layers during the in situ 80 keV e-beam irradiation of an amorphous carbon structure using an aberration corrected (Cs-corrected) electron transmission microscope. E-beam irradiation promoted the amorphous-to-ordered structure transforma…
SERS spectroscopy provided structural data on binding of a dye as monomer and dimer within minor groove of adenine–thymine polynucleotides.
Aluminized E-glass fiber reinforced polyvinyl alcohol composites, originally formulated for enhanced electrical shielding and thermal properties were evaluated in terms of their thermal performance. The role of temperature increase required for degradation of these specimens analyzed using a TGA (thermogravimetric ana…
In spite of intensive research is being reported on cancer and its therapy, still it is identified as a leading killer worldwide. It is reported that around 7 million deaths occur every year and WHO (2007) estimated that around 16 million new cancer cases will be detected every year by 2020. The major cancer mortality…
We demonstrate for the first time a mild deposition of metallic materials on a plastic film, (poly)ethylene tetraphthalate (PET), enabled by phage displayed peptides.
Alumina/zirconia composite materials are widely used for biomedical applications because of their high biocompatibility and good mechanical properties. In this work, the effects of slurry solid content and binder type are studied on the characteristics of spray-dried composite particles. The tap density and particle s…
Tests on miniature samples are increasingly used for the determination of mechanical properties of materials available in small volumes (non-destructive or semi-destructive approach). Small punch testing at constant deflection rate (SPT-CDR) of selected magnesium alloys and composites was performed at room temperature…
Ferrites are magnetic ceramic materials which have additional metallic ion in ferrous oxide compounds. Ferrites are usually classified as soft or hard ferrites. In this study, characteristics and magnetic properties of magnetic materials having NiO1–xZnOxFe2O4 structure were investigated. Mechanical mixing of high pur…
We report new wide band gap engineering for graphene using slow Cs + ions, which allows both fine-tuning and on–off switching capability of the band gap in a range suitable for most applications sustaining the nature of Dirac fermions.
Spark plasma sintering (SPS) was used to synthesize Nano-structured Fe-18Cr-2Si alloy with Fe-18Cr- 2Si ball milled powders. SPS was carried out in vacuum at three different holding time (5, 10 and 15min) at a fixed sintering temperature (1100 °C) and applied pressure (50MPa). Potentiodynamic Polarization (PDP), Linea…
Solid oxide fuel cell (SOFC) is considered to be a highly efficient device to convert chemical fuels directly into electrical power. Because of multilayer composite arrangement of cells, mismatch of the thermal expansion coefficients, chemical/thermal gradient, or phase change of the materials will result in residual…
Nonlinear vibrations in strained monoatomic carbon chains are studied with the aid of ab initio methods based on the density functional theory. An unexpected phenomenon of structural transformation at the atomic level above a certain value of the strain was revealed in cumulene chain (carbyne-β). This phenomenon is a…
This paper presents results from an in-house, finite-difference (FD) code to model ballistic impact into flexible composite body armor. The code, written in MATLAB, runs well on a high-end PC. The version we consider in this paper models the postimpact, pre-failure behavior of non-woven, cross-plied sheets made from U…
In this study, the influence of mechanical surface treatments on the Sandelin Phenomenon in silicon containing steels was investigated. For this purpose, various surface topographies with/without deformed zones were produced on the steel samples with different silicon contents by applying mechanical surface treatments…
A facile method is described to prepare micron partly hollow dumbbell silica particles in a single step. The obtained particles consist of a large dense part and a small hollow lobe. The spherical dense core as well as the hollow lobe are covered by mesoporous channels. In the case of the smaller lobe these channels a…