Materials Literature
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Biological chiral fibrous composites, known as biological plywoods, found throughout nature including the exoskeletons of insects and plant cell walls have optimized structural and functional properties, such as the iridescent colors observed in beetle cuticles. In many cases the micron-range chirality of the fibrous…
Nowadays, photodynamic therapy (PDT) is a quite promising approach for killing various cancer cells. In this work, we report on photo-functional magnetic nanoparticles conjugated with hematoporphyrin (HP) (Fe 3 O 4 @HP) via a simple surface modification process. The microstructure and the magnetic properties of the Fe…
Boron-nitride nanotubes (BNNTs) are structural analogs of carbon nanotubes formed from hexagonal boron-nitride (h-BN) sheets. h-BN exhibits strong phonon resonances which result in a negative permittivity band in the mid-infrared (mid-IR) part of the electromagnetic spectrum. Recently, we have experimentally demonstra…
In this study, the effect of Si content at a welded DSS on the pitting resistance was investigated. FCAW (Flux Cored Arc Welding) was conducted using 22Cr-9Ni-3Mo as the basic composition and adjusting the Si content to 0.6wt%, 0.9wt%, and 1.8wt%. The 6-ferrite fraction increased due to addition of Si, and the amount…
High photoresponse can be achieved in monolayers of transition metal dichalcogenides. However, the response times are inconveniently limited by defects. Here, we report low temperature photoresponse of monolayer tungsten disulphide prepared by exfoliation and chemical vapour deposition (CVD) method. The exfoliated dev…
The performance of a single-crystal diamond detector, grown by chemical vapour deposition, as an energy spectrometer for charged particles was studied. The detector was able to identify four different energies of -particles (5.389, 5.443, 5.486, and 5.545 MeV) thanks to a superior intrinsic energy resolution of (full…
Electromigration (EM) in on-chip metal interconnects is a critical reliability failure mechanism in nanometer-scale technologies. This work addresses the problem of EM on signal interconnects within a standard cell. An approach for modeling and efficient characterization of cell-internal EM is developed, incorporating…
This paper discusses the design and implementation of circle shaped loop antena to measure partial discharge (PD). The loop antenna is designed to measure PD induced EM wave in air and liquid insulation. The PD in air and liquid induces EM wave in the frequency range up to 100 MHz and 200 MHz, respectively. The circum…
Artemisia montana Pampan (Compositae) (AMP) contains various compounds, including phenolic acids, alkaloids, and essential oil. It has been widely used in oriental medicine due to a variety of biological effects. However, the biological activity of the essential oil from AMP (AMPEO) on skin has not been investigated.…
We have fabricated Co-Pt cylindrical nanostructures comprised of a pair of nanotube and nanowire segments via direct electroplating into anodic alumina (AAO) membranes. The fabrication of such nanostructures is possible due to the penetration of sputtered gold (Au) nanoparticles inside the template, which serve as nuc…
AC magnetic properties and core loss behavior of differently prepared Fe-P sheets have been analyzed in this paper. Furthermore, the results have been compared with non-oriented silicon (Si) steel. The coercivity, magnetic flux density, and permeability measurements in dc magnetic field show Fe-P has better soft magne…
It is proposed to use a generalized matrix averaging (GMA) method for calculating the parameters of an effective medium with physical properties equivalent to those of a set of thin multiferroic layers. This approach obviates the need to solve a complex system of magnetoelectroelasticity equations. The required effect…
We believe that a better understanding of supramolecular associations could lead to improved understanding and control of biological processes for new medical applications. "
We theoretically reveal a new amplification mechanism of terahertz and far-infrared radiation in graphene under interband pumping. It is enabled by indirect interband electron transitions, where in the photon emission is preceded or followed by disorder scattering. The emerging contribution to the optical conductivity…
BACKGROUND: Radix Ophiopogonis polysaccharide (ROP), a highly hydrophilic macromolecule, has a unique anti-ischemic action in the myocardium. One of the main problems with its use is its relatively short half-life in vivo. To solve this problem, injectable long-acting drug delivery systems, which combine mono-PEGylati…
An overview of the recent development of a multiscale simulation of amorphous polymeric materials at the bulk density is presented. Poly(ethylene oxide), (PEO), (CH 3 O-[CH 2 -CH 2 -O] n CH 3 ) was selected to illustrate the method. The model starts from an ab initio quantum chemistry to obtain the statistical weights…
(SSFO) films were epitaxially grown on MgO substrates by pulsed-laser deposition. X-ray diffraction, atomic force microcopy, and optical spectra investigations reveal that the lattice and band structure properties of the SSFO films can be modified significantly by varying the Fe content. With Fe content increasing fro…
Poly(ethylene terephthalate) (PET) is the most widely used plastic in beverages packaging. It is also the most recycled plastic in the world. It is estimated that 6 million tons of PET are recycled (rPET) each year worldwide. Recycling of this material by melt processing has been the subject of many studies, in order…
The results of experimental and theoretical studies of steel 09G2S deformation and fracture laws in a wide range of strain rates and temperature variations are given. The dynamic deformation curves and the ultimate characteristics of plasticity in high-rate strain were determined by the Kolsky method in compression, e…
This paper deals with the fundamental theoretical background of a 1-D parametric magneto-dynamic (PMD) model, which analytically solves the interdependence of the magnetic field and macroscopic eddy currents inside a thin soft magnetic steel sheet (SMSS). Furthermore, the loss calculation using the discussed model is…