Materials Literature
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Despite intensive efforts to improve multimodal treatment of brain tumor, survival remains limited. Current therapy consists of a combination of surgery, irradiation and chemotherapy with predisposition to long-term complications. Identifying novel targeted therapies is therefore at the forefront of brain tumor resear…
This paper presents a novel topology of power electronic transformer. In the design process, the AC/DC, DC/AC, AC/AC converters and high frequency transformer have been used. One matrix converter operates as AC/AC converter in power electronic transformer. The proposed power electronic transformer performs typical fun…
Targeting imaging and enhanced radiotherapy are very important issues for decrease in diagnosis and therapy. Functionalized gold nanostructures show low toxicity and excellent optical properties, and thus, they can be used as the contrast agent in cancer cell imaging. Furthermore, gold nanostructures can enhance radio…
Typically, permanent magnets are used in electromagnetic acoustic transducer (EMAT) design. Their use at high temperatures without active cooling is restricted because of their relatively low maximum operating temperature. Presented here is an alternative approach that overcomes this problem and that utilises a pulsed…
The present work was undertaken in hypereutectic ductile irons, to simultaneously study cooling curves, specimen contraction curves, microstructures and shrinkage tendencies as a function of inoculant selection and mould rigidity. Specific equipment was developed for simultaneous recording of cooling and contraction c…
A comprehensive treatment to the fragment identification and statistics for the smoothed particle hydrodynamics (SPH) simulation of hypervelocity impact is presented. Based on SPH method, combined with finite element method (FEM), the computation is performed. The fragments are identified by a new pre- and post-proces…
A highly L10-ordered FePt film with a crystalline [001] orientation was prepared by SiO2 addition and rapid thermal postannealing on an oxidized Si substrate. In order to clarify the mechanism of L10 ordering and the crystalline orientation of a nonepitaxial FePt film, we investigated the effect of the preparation con…
TiO₂ films may be used to alter the wettability and hemocompatibility of cellulose materials. In this study, pure and stoichiometric TiO₂ films were grown using atomic layer deposition on both silicon and cellulose substrates. The films were grown with uniform thicknesses and with a growth rate in agreement with liter…
Solvent matters: By carrying out the assembly of pyrogallolarene hexamers under thermal conditions in the absence of solvent, highly efficient loading of guest molecules to produce kinetically trapped assemblies was achieved. Such products are not formed when the solvents are present (see schematic).
In the field of biomedical sciences, nanotechnology has emerged as a novel approach to design and develop drug delivery carriers (i.e. nanoparticles). The inspiration of nanoparticles as delivery vehicles for drugs or genes arose from the concept of viral mediated delivery. Researchers envied the enhanced transport ef…
Teranthen – ein molekularer Ausschnitt aus Graphen: Die überraschende Stabilität von Teranthen unter Umgebungsbedingungen ermöglichte seine Charakterisierung, die auf einen hohen Biradikalanteil im Singulettgrundzustand schließen lässt (siehe Schema). Polycyclische aromatische Kohlenwasserstoffe mit hohem Singulettbir…
Superconducting materials have contributed significantly to the development of modern materials science and engineering. Specific technological solutions for their synthesis and processing helped in understanding the principles and approaches to the design, fabrication and application of many other materials. In this…
A colorimetric, non-cross-linking aggregation-based gold-nanoparticle (AuNP) probe has been developed for the detection of DNA and the analysis of single-nucleotide polymorphism (SNP). The probe acts by modulating the enzyme activity of thrombin relative to fibrinogen. A thrombin-binding aptamer with a 29-base-long ol…
While in the latest years carbon nanotubes have found wide exploitation in nanomedicine, to date biomedical applications of boron nitride nanotubes (BNNTs) are almost totally unexplored. BNNTs are structural analogues of carbon nanotubes: alternating B and N atoms entirely substitute for C atoms in a graphitic-like sh…
The streaming potential generated by a pressure-driven flow over a weakly charged slip-stick surface [the zeta potential of the surface is smaller than the thermal potential (25 mV)] with an arbitrary double layer thickness is theoretically studied by solving the Debye–Huckel equation and Stokes equation. A series sol…
A set of aluminium nitride ( AlN ) and oxidized AlN ( AlNO ) thin films were grown with the technique of direct current (dc) reactive magnetron sputtering. The main purpose of this investigation is to explore the influence of the oxygen on the structural properties of AlN and AlNO films. The crystalline properties and…
The novel nanocomposite based on poly(carbonate-urea)urethane and polyhedral oligomeric silsesquioxanes (POSS) has been used in medicine especially in cardiovascular applications. It is also known that the cell affinity towards biomaterials can be promoted by immobilization of extracellular matrix proteins onto these…
Gut behütet: Peptide, die auf der Oberfläche von mesoporösen Silicat-Trägern verankert wurden, fungieren als „Torwache“. Auf diese Weise werden absolut dichte Transportmaterialien erhalten, die die Ladung erst in Gegenwart einer passenden Peptidase selektiv freisetzen (siehe Bild, rote Kreise: Ladung, bunte Ketten: Pe…
Proton exchange membrane (PEM) fuel cells have attracted grate attention in recent years as a promising replacement for traditional engines. The performance of PEM fuel cells is known to be influenced by many parameters such as operation temperature and humidification of the gas streams. In this work, a testbench was…
The load-bearing capacity of today's tissue-engineered (TE) cartilage is insufficient. The arcade-like collagen network in native cartilage plays an important role in its load-bearing properties. Inducing the formation of such collagen architecture in engineered cartilage can, therefore, enhance mechanical properties…