Materials Literature
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Emission wavelength control in fluorescent nanoparticles (NPs) is crucial for their applications. In the case of inorganic quantum dots or dye-impregnated silica NPs, such a control is readily achieved by changing the size of the particles or choosing appropriate fluorescent dyes, respectively. A similar modular appro…
We have studied the magnetic entropy change of highly ordered La0.7Ca0.3MnO3 nanotube arrays synthesized by template assisted sol-gel method in temperatures ranging from 179 to 293 K and in magnetic fields up to 5 T. From the measurements of isothermal magnetization, we have calculated the maximum isothermal magnetic…
The fabrication of zinc stearate superhydrophobic hierarchical surfaces from two precursors by a simple wet chemical route and its wettability is reported. The zinc stearate coatings were prepared from a single pot using ethanolic solutions of zinc acetate/zinc nitrate and stearic acid. The coatings were characterized…
This article presents an experimental investigation of the effect of the skin layer on the mechanical behavior of a closed-cell polymeric foam material. The skin layer is a thin layer with increased density due to the manufacturing processes, which results in inhomogeneity. The skin-layer effect is investigated by com…
A cost‐efficient strategy using elemental powders of Ti, Al, and graphite as starting materials is proposed to fabricate conductive Ti 2 AlC honeycomb monolith. The honeycomb structure is extruded from a plastic feed material composed of the initial powders and several additives. Phase‐pure Ti 2 AlC can be obtained wi…
Recently, the demand for He-3 has increased dramatically due to widespread use in nuclear nonproliferation, cryogenic, and medical applications. Essentially all of the world’s supply of He-3 is created by the radiolytic decay of tritium. The Savannah River Site Tritium Facilities (SRS-TF) utilizes LANA.75 in the triti…
Cuprous iodide is an important transparent p-type semiconductor, it has an illustrious history, and has recently enjoyed a renaissance. In this work, we investigate the electronic band structure and absolute electron energies of the three major known phases of CuI, zincblende (F43m), wurtzite (P63mc), and rock salt (F…
Key parameters of a recently developed coarse-grained molecular dynamics-finite element coupling approach have been analyzed in the framework of uncertainty quantification (UQ). We have employed a polystyrene sample for the case study. The new hybrid approach contains several parameters which cannot be determined on t…
We have studied the state of the water contained in poly(ethylene terephthalate) (PET), which consists of repeat units of OCC6H4COOCH2CH2O, in variously hydrated states. We first determined the hydration structure of the water therein not only from its OH stretching spectrum in a thinner sample but also from the hydra…
The porous glass has a high chemical, thermal, and mechanical resistance, which results from a rigid and incompressible silica network. In the present manuscript, porous glasses were prepared and characterized by partial sintering of waste glasses. Polyvinyl alcohol was added as a binder to the glass powder and the mi…
Spinning triangle is a critical zone in the ring spinning process of staple yarn, whose geometry influences the fiber tension distribution in the spinning triangle directly and determines the spun yarn qualities. In ring spinning, the spinning triangle is often asymmetric due to the inclination angle of the spinning t…
The corrosion processes of mild steel immersed in river water were investigated. The reaction of the Bahlui River on common steel used in domestic and industrial installations was studied. The corrosion of mild steel is an extensive topic approached in different media, yet little information about river water as a cor…
Nanotechnology provides the ability to engineer the properties of materials. Nano zinc oxide having particle size ∼50 nm was used with different concentrations to coat the following textiles fabrics: cotton, polyester and blend cotton/ polyester (65/35) using the pad-dry-cure method. The main advantages of these treat…
This paper describes a detailed derivation of a structural model for an icosahedral quasicrystal based on a primitive icosahedral tiling (three-dimensional Penrose tiling) within a statistical approach. The average unit cell concept, where all calculations are performed in three-dimensional physical space, is used as…
Semiconductor quantum dot nanoparticles are in demand as optical biomarkers yet the cellular uptake process is not fully understood; quantification of numbers and the fate of internalized particles are still to be achieved. We have focussed on the characterization of cellular uptake of quantum dots using a combination…
OBJECTIVES: The present study aimed at developing tissue-engineered mitral valves based on cell-free ovine mitral allografts. METHODS: The ovine mitral valves (OMVs) (n = 46) were harvested in the local slaughter house. They were decellularized using detergent solutions and DNase. The effectiveness of decellularizatio…
Pressure dependence of the conductivity and thermoelectric power is measured through the Mott transition in the layer organic conductor EtMe_{3}P[Pd(dmit)_{2}]_{2}. The critical behavior of the thermoelectric effect provides a clear and objective determination of the Mott-Hubbard transition during the isothermal press…
Pump-probe differential reflection and transmission spectroscopy is a very effective tool to study the nonequilibrium carrier dynamics of graphene. The reported sign of differential reflection from graphene is not explicitly explained and not consistent. Here, we study the differential reflection and transmission sign…
Paclitaxel (PTX) is usual for the treatment of a variety of malignancies, however, its applications are greatly limited due to its poor water solubility. Over the past years, there has been a considerable research interest in the area of nanoscale drug delivery systems (DDSs) as carrier for PTX due to their solubiliza…
We have synthesized crystals of two-dimensional layered tin disulfide (SnS2) by chemical vapor transport and fabricated field-effect transistors based on mechanically exfoliated SnS2 multilayer platelets. We demonstrate that the threshold voltage of these transistors can be modified by passivating the gate-oxide surfa…