Materials Literature
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In this study, we modified a surface plasmon resonance immunosensor chip with a polymer using surface-initiated atom transfer polymerization (SI-ATRP) for the highly sensitive detection of 2,4,6-trinitrotoluene (TNT). To immobilize a TNT analogue on the polymer, mono-2-(methacryloyloxy)ethylsuccinate (MES), which has…
Abstract In this theoretical study, the sensitivity of Fe4S4 cluster properties, such as potential energy, spin coupling, adiabatic detachment energy, inner‐sphere reorganization energy, and reactivity, to structural distortions is investigated. [Fe4S4(SH)4]3−/2−/1− model clusters anchored by fixed hydrogen atoms are…
Four enzymes of the gluconeogenic pathway in Sulfolobus solfataricus were purified and kinetically characterized. The enzymes were reconstituted in vitro to quantify the contribution of temperature instability of the pathway intermediates to carbon loss from the system. The reconstituted system, consisting of phosphog…
We analytically determine the optimal microwave field that allows for the magnetization reversal of a nanomagnet modeled as a macrospin. This is done by minimizing the total injected energy. The results are in good agreement with the fields obtained numerically using the optimal control theory. For typical values of t…
Eine neue Leitstruktur für die CO2/Epoxid-Copolymerisation: Durch kinetische Untersuchungen konnte der Wechsel des geschwindigkeitsbestimmenden Schritts von der Epoxidringöffnung zur CO2-Insertion und umgekehrt in Abhängigkeit vom angelegten Druck gezeigt werden. Dies wird auf die Äquivalenz der Aktivierungsenergien z…
Owing to their unique chemo‐physical and structural characteristics, amorphous bulk metallic glasses (BMGs) are of great demand for fabrication of variety of advanced and innovative products including surgical and biomedical tools and devices. In this study, a series of Ni‐free Zr‐based BMGs in Zr–Cu–Fe–Al system are…
Our studies focused on the determination of aggregation mechanisms of proteins occurring in wine at room temperature. Even if the wine pH range is narrow (2.8 to 3.7), some proteins are affected by this parameter. At low pH, the formation of aggregates and the development of a haze due to proteins sometimes occur. The…
A crucial question in post-ischemic cell therapy refers to the ideal method of cell delivery to the heart. We hypothesized that epicardial implantation of subamnion-cord-lining mesenchymal stem cells (CL-MSC) angiogenic spheroids embedded within fibrin grafts (SASG) facilitates donor cell survival and enhances cardiac…
The millimeter-waveband properties of gradient cobalt and iridium films deposited on the surface of opal matrix have been studied. The transmission and reflection coefficients are measured in frequency range from 26 to 38 GHz. The algorithm is developed to extract the value of microwave effective conductivity from the…
Anisotropy effects on the spinodal decomposition in cathodic arc evaporated cubic “phase c-Ti1−xAlxN coatings have been studied with respect to composition, microstructure and hardness properties before and after a continuous turning operation. Coatings are simultaneously being exposed to both a high temperature and h…
Abstract We report, herein, the synthesis of new push–pull chromophores that incorporate a diazine ring as the electron‐withdrawing part and an N,N‐dimethylaniline moiety as the electron‐donating part. Both of which are connected to a fluorene core. The length of the conjugated backbone was increased by incorporating…
Conventional culture methods using temperature-responsive culture dishes require 4-5 weeks to prepare layered chondrocyte sheets that can be used in articular cartilage repair and regeneration. This study investigated whether the use of synovial tissue obtained from the same joint as the chondrocyte nutritive supply s…
Based on the elastic–plastic deformation theory, status between abrasives and workpiece in magnetorheological finishing (MRF) process and the feasibility of elastic polishing are analyzed. The relationship among material removal mechanism and particle force, removal efficiency, and surface topography are revealed thro…
This paper describes the development of 2D flexible sensors designed by integration of conductive fibrous electrodes and piezoelectric polyvinylidene fluoride (PVDF) fibers into a conventional plain woven polyester fabric. The piezoelectric properties and electrical response to the mechanical deformation of the sensor…
Je größer, umso besser: Sequenzielle NMR-spektroskopische Zuordnungen des Proteinrückgrats gelangen für einen Proteasomkomplex von ca. 1 MDa. Die Methode beruht auf einer Immobilisierung des Komplexes durch Probenrotation im magischen Winkel. In Kombination mit Proteindeuterierung, Protonendetektion austauschbarer Gru…
When suspensions involving rigid rods become too concentrated, standard dilute theories fail to describe their behavior. Rich microstructures involving complex clusters are observed, and no model allows describing its kinematics and rheological effects. In previous works the authors propose a first attempt to describe…
It is of paramount importance to study the cellular uptake processes of particles with defined surface property, especially the uptake pathways and intracellular transportation. In this study, aptamer AS1411 molecules, which are known to specifically bind the over-expressed nucleolin on cancer cell membrane, were conj…
Außer Zweifel: Die Entstehung von Formaldehyd im Zuge einer rutheniumkatalysierten CO2-Reduktion und dessen Beteiligung an der Bildung des C2-Endprodukts wurden klar bewiesen. Schlussendlich kann Formaldehyd durch Methanol abgefangen werden. HBPin=Pinakolboran.
A novel, easy, and cost-effective synthetic procedure is reported for the production of very highly regioregular poly[3-(4-alkoxyphenyl)thiophene]s by means of oxidative coupling. Four copper complexes were synthesized and used as catalysts to obtain polymers with higher regioregularity compared to the previous oxidat…
The aim of this study was to assess structural and biochemical differences in the extracellular matrix of the fetal and adult porcine mitral heart valves in relation to their mechanical characteristics. Using tensile tests it was demonstrated that the material properties of porcine mitral heart valves progressively ch…