Materials Literature
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Abstract Experimental results from the gas‐plasma treatment and electron‐beam irradiation of polyamide (PA) and poly(vinylidene fluoride) (PVDF) membranes to improve their wettability and to evaluate protein adsorption at their surface are presented. The wettability of the membrane surface was determined by contact an…
To address the fluctuation regime above the critical temperature of the charge-density-wave phase of 1$T$-TiSe${}_{2}$, we perform calculations using the Bethe-Salpeter equation for treating strong electron-hole correlations. Calculated photoemission intensity maps are in good agreement with the measured ones and prov…
Here, we report the synthesis of the double-perovskite system Sr 2 Cu(W 1– x Mo x )O 6, with x = 0.0–1.0, where the Mo-containing members have not been synthesized before. This system provides an example of a quasi-two-dimensional S = 1 / 2 square lattice, with the possibility of magnetic frustration. The compounds we…
For bilayer graphene in a magnetic field at the neutral point, we derive and solve a full set of gap equations including all Landau levels and taking into account the dynamically screened Coulomb interaction. There are two types of the solutions for the filling factor $\ensuremath{\nu}=0$: (i) a spin-polarized type so…
A comprehensive scheme of phase configuration optimization in the Mg–Zn–Ca(–Zr) system by thermodynamic simulations and microstructural analyses is presented. A composition window of 0.2–0.4 wt% Ca and 5–6 wt% Zn is defined as optimal for establishing a complex heterogeneous microstructure allowing for enhanced ductil…
Di-iron phosphide (Fe${}_{2}$P) is a parent system for a set of magnetocaloric materials. Although the magnetic ordering temperature (${T}_{\mathrm{C}}$ $=$ 215 K) of the stoichiometric composition is too low for room-temperature magnetic refrigeration, the partial replacement of P with B, Si, or As elements results i…
Polymers have become immensely important in industrial development. They are nowadays used for vibration damping bearings in car manufacturing, shipbuilding, and civil engineering and in the production of tyres, but not only for these. Their good formability, processibility, flexibility, and adhesiveness have also lon…
Here, we demonstrate the impact of lattice strain on the carrier relaxation of Cd x Zn 1– x S alloy nanocrystals. In alloy nanocrystals, the difference in the lattice constants of their constituents can induce a lattice strain that varies with the composition of alloy. We have analyzed the decay curves using a multiex…
In an attempt to compare crystal structure determination from powder data and single-crystal data, crystal structure of griseofulvin (C 17 H 17 ClO 6 ) was tested by both powder and single-crystal X-ray diffraction. Lattice parameters of griseofulvin are a =90.0°, a = b =8.9757 Å, c =19.9345 Å, V =1605.99 Å 3 from pow…
The degree of charge‐transfer in Ag–4‐mercaptopyridine (Mpy) and Ag 2 S–4‐Mpy systems is investigated by use of surface‐enhanced Raman spectroscopy (SERS). Ag 2 S and Ag 2 Se nanoparticles are prepared on the basis of the former formation of Ag nanoparticles to make the SERS analytical objects comparable. We utilize t…
Single-crystal colloidal SnSe nanosheets react with a trioctylphosphine–tellurium complex to transform into porous single-crystal SnTe nanosheets with oriented nanocube protrusions. This chemical transformation reaction, which provides chemical and crystallographic guidelines for designing secondary nanostructural fea…
Within the field tissue engineering, new and novel approaches to bone and cartilage regeneration have been explored. These novel approaches are being developed in order to mediate and expedite the natural healing process. Electrospinning is a well-established nano-/microtechnique for the manufacture of biomimetic fibr…
A twofold helix (2(1) helix) is an essential motif in approximately 70% of organic crystals. Although handedness of 2(1) helix has not been discussed from a mathematical viewpoint, we noticed that the handedness can be defined by considering the molecular shape and manner of assembly. Herein we propose the supramolecu…
Structural and electronic properties of the Fe-based spin-ladder compound CsFe${}_{2}$Se${}_{3}$ was investigated by means of resistivity, susceptibility, specific heat, M\"ossbauer, and neutron diffraction measurements. Despite the single-site nature in a mixed-valence state, the ground state is a magnetic insulator…
We demonstrate that emulsion droplets stabilized by interfacial particles become unstable beyond a size threshold set by gravity. This holds not only for colloids but also for supracolloidal glass beads, using which we directly observe the ejection of particles near the droplet base. The number of particles acting tog…
Here we examine the effects of folding and scrolling on the Raman spectra of mechanically exfoliated single- and bilayer graphene prepared on SiO(2) substrates. We find that incommensurate folding in bilayer graphene results in a shift of the second-order G' band frequency, similar to that observed in folded single-la…
A simplified theory for the crystallisation of biodegradable polyesters induced by polymer chain scissions during biodegradation is presented following a theory developed by Han and Pan. The original theory is greatly simplified so that it becomes very straightforward to use and the number of material parameters is si…
We propose a new approach to fabricate the graphene nanomesh through the local catalytic hydrogenation of carbon by Cu nanoparticles. It allows to tune the size and density of the holes in the nanomesh as well as the total edge length of the holes through the control of the thickness of the Cu film. The upshift of bot…
An approach to the modification and post-fabrication chemical patterning of amine-reactive superhydrophobic surfaces is reported. The approach is based on the layer-by-layer fabrication of azlactone-containing polymer multilayers, and permits the direct covalent attachment and subsequent patterning of chemical and bio…
Diatoms are generally known for superior mechanical properties of their mineralised shells. Nevertheless, many copepod crustaceans are able to crush such shells using their mandibles. This ability very likely requires feeding tools with specific material compositions and properties. For mandibles of several copepod sp…