Materials Literature
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Abstract In the present work we perform a detailed investigation of ingot metallurgy processing routes of Ti-30Ta, a shape memory alloy with a good potential for applications at higher temperatures. There is currently considerable interest in high temperature shape memory alloys, both in industry (automotive and aeros…
Nanoparticle-based drug delivery platforms are emerging as powerful chemotherapeutic modalities in breast cancer. Doxorubicin and paclitaxel nanoparticle formulations are currently used clinically, yielding distinct pharmacokinetic parameters that prolong blood circulation times, enhance drug accumulation in tumors, a…
To study the effects of polymer growth and polymer nanostructure formation on stainless-steel meshes (opening size of 100 μm), we report the behavior of three electrodeposited polymers with varied deposition charge to achieve superoleophobic meshes with low adhesion (low hysteresis (H) and sliding angles (α)). We show…
Block copolymers have been widely investigated over the past decades for their ability to microphase separate into well-defined nanostructured thin films with tailored physical properties. The aim of the present study is to investigate the thin film properties of rod–coil block copolymer/phenyl-C 61 -butyric acid meth…
A comparison of corrosion process and mechanism between the plasma electrolytic oxidation (PEO) coated magnesium alloy and PEO coated magnesium alloy with laser surface melting (LSM-PEO) pretreatment was made based on our previous work. The corrosion tests were carried out using electrochemical impedance spectroscopy…
Blue with CO2! A new approach for the chromogenic sensing of carbon dioxide using silica nanoparticles functionalized with amino and thiol moieties has been reported. The presence of CO2 in suspensions of the hybrid silica nanoparticles controlled the access of a squaraine dye to the surface of the nanoparticles resul…
Herein, we designed chiral photoresponsive tetra(2-phenylthiazole)s, which induce a diastereoselective 6π-electrocyclization reaction in a helically folded structure to freeze the conformational interconversions. The folding conformation with one helical turn of tetra(2-phenylthiazole)s was supported by multiple intra…
In this study, biodegradable poly(lactic acid) (PLA)/Kenaf core composites with different amount of Kenaf core were prepared using screw extrusion. The Structure, thermal stability, mechanical properties, and biodegradation of bio‐composites are evaluated. FTIR result shows the possible interaction between the Ken cor…
We present DFT+U based electronic structure calculations in a p(3 × 3) slab supercell, for low coverages of atomically dispersed Rh interacting with the CeO2(111) surface, comparing Rh as an adatom, and as a dopant substituted into the surface layer. We find that, energetically, a Rh atom approaching a ceria(111) surf…
ABSTRACT The synthesis of a series of poly(ester amide)s constituted by glycolic acid, adipic acid, and different ratios of 1,3‐pentanediamine and 1,5‐pentanediamine units was studied and the derived copolymers were characterized. Thermal polycondensation between the potassium adipate salt and the appropriate ratio of…
The effect of oxygen addition to an argon plasma on the etching selectivity of poly(methyl methacrylate) (PMMA) to polystyrene (PS) (hereafter “PMMA/PS etching selectivity”) was investigated. The PMMA/PS etching selectivity was evaluated by using inductively coupled plasmas composed of argon and oxygen. The etching se…
Fibre drawing is used to fabricate indefinite media based on wire array metamaterials. Fibres containing arrays of indium wires embedded in polymer are drawn using an optical fibre draw tower, a technique that is intrinsically scalable to larger‐volume fabrication. During drawing, the surface tension of the liquid ind…
ABSTRACT In this study, the crystallization behavior of the β‐isotactic polypropylene (β‐iPP) samples nucleated by a rare earth based β‐nucleating agent (β‐NA) WBG‐II and a metal salts compound β‐NA NAB83 (denoted as WPP and NPP, respectively) under different cooling conditions were comparatively investigated. The the…
The optical properties of a Ho(3+) /Yb(3+) co-doped CaSc2 O4 oxide material are investigated in detail. The spectral properties are described as a function of doping concentrations. The efficient Yb(3+) →Ho(3+) energy transfer is observed. The transfer efficiency approaches 50 % before concentration quenching. The con…
ABSTRACT The effect of hybridization of wood fibers and metal hydroxides on the thermal stability of polypropylene (PP) based plastic composites is studied through thermo gravimetric analysis (TGA). The wood fiber increases thermal stability of the metal hydroxide hybridized WPC including aluminum hydroxide (AH) and m…
PURPOSE: To compare quantification of the amide proton transfer (APT) effect pre- and post-gadolinium contrast agent (Gd) administration in order to establish to what extent Gd alters quantification of the APT effect. MATERIALS AND METHODS: Four patients with internal carotid stenosis were recruited. APT imaging was a…
PURPOSE: To evaluate a new class of manganese porphyrins with tunable pharmacokinetics as potential gadolinium (Gd)-free T1 agents for contrast-enhanced magnetic resonance imaging (MRI). MATERIALS AND METHODS: Two new contrast agents, MnTCP and MnP2, were evaluated in four female rats. MRI was performed daily up to 3…
In analysis of numerically simulated or experimentally obtained nematic textures, data visualisation plays an important role in interpretation and comparison of results. We review both commonly used, and more recently developed visual presentation methods that expose different aspects of the textures, from director fi…
The hot tearing behaviour of magnesium alloys is one of the very important parameters to estimate the alloys actual application. The hot tearing mechanism of different Y content of Mg–Zn–Y–Zr alloys was studied in the present paper. The several important parameters of the mushy zone of MgZn2·5YxZr0·5 ( x = 0·5, 1, 2,…
Rotlichtschalter: Tetra-ortho-methoxysubstituierte Aminoazobenzole bilden bei neutralem pH-Wert Azoniumionen, isomerisieren bei Bestrahlung mit rotem Licht (635 nm) zur cis-Form und kehren thermisch innerhalb von Sekunden zur trans-Form zurück.