Materials Literature
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Both spectra of transient absorption (lambda(max) = 390 nm) and luminescence (lambda(max) = 590 nm) for the (4)T(1) state of Mn(2+) in ZnS nanoparticles shift to long wavelengths by 40 nm and broaden by 1.7 times as the state becomes banded. The (4)T(1) band of capping Mn(2+) in ZnS nanoparticles decays on the time sc…
Abstract In this study, multitechnique image fusion between imaging X‐ray photoelectron spectroscopy (XPS) and phase imaging atomic force microscopy (AFM) is discussed. It is beneficial for the purpose of facilitating correlation of different physical properties such as phase information from AFM images with chemical…
Producing energy to supply the demands of our societies is reaching a critical limit. To tackle this issue, there is a slow renaissance of fission reactors and the push to realise fusion reactors. The safe, reliable and optimal performance of fusion and fission plants is dependent on the choice of suitable materials u…
Raman spectra have been measured on iron-based quaternary CeO 1− x F x FeAs and LaO 1− x F x FeAs with different amounts of fluorine doping at room temperatures. A group analysis has been made to clarify the optical modes. Based on first-principle calculations, the observed phonon modes can be assigned accordingly. In…
According to cyclic voltammetry, symmetrical dumbbell-shaped phenothiazine dyads bridged by heterocycles show intense electronic coupling between the redox-active phenothiazine moieties. Furthermore, the fluorescence of the pyridyl-bridged derivatives can be controlled by pH change giving reversibly switchable redox-a…
A 37-year-old female was found to have hypouricemia (1.1-1.9 mg%) with markedly increased uric acid clearance (24.7039.5 ml/min). Uric acid excretion was only slightly affected by pyrazinamide, a drug which suppresses renal tubular uric acid secretion, and by probenecid, a drug which inhibits tubular uric acid reabsor…
Abstract The synergistic effect of benzotriazole (BTAH) and molybdate on the inhibition of copper tarnish was studied in this paper. The antitarnish treatment of copper was conducted with BTAH solution containing molybdate. The surface morphology observation and composition analysis were investigated by SEM with energ…
The organization of conjugated polyelectrolytes (CPEs) interacting with biomolecules sets conditions for the biodetection of biological processes and identity, through the use of optical emission from the CPE. Herein, a well-defined CPE and its binding to DNA is studied. By using dynamic light scattering and circular…
Nowadays Nitinol structures are accepted and highly exploited in the medical field. Therefore, studying the mechanical properties of this material—which is not trivial by considering the thermal behaviour of the alloy—is very important in order to get quantitative data for a reliable design of novel Nitinol components…
Six pairs of Eu(III) and Tb(III) complexes of macrocyclic ligands, incorporating a common tetraazatriphenylene sensitiser, have been examined in terms of their solution structure, sensitivity to excited state quenching, protein affinity, cell toxicity and preliminary cell localisation profiles. A complex with three (S…
The vacuum-UV (VUV)-induced conversion of commercially available poly(1,1-dimethylsilazane-co-1-methylsilazane) into methyl-Si-O-Si networks was studied using UV sources at wavelengths around 172, 185, and 222 nm, respectively. Time-of-flight secondary ion mass spectroscopy (TOF-SIMS), X-ray photo electron spectroscop…
Message in a bottle: Alkaline hydrothermal treatment of lysozyme–silica hybrid particles leads to cagelike hollow aluminosilicates (CHAs) with vermiculate through-holes in the shell. Biomacromolecules can be transported inside the CHA through these holes and encapsulated within the confined inner space by crosslinking…
Abstract Despite a generally good corrosion resistance to tap and industrial water, many brass taps and fittings have failed in the past by stress corrosion cracking (SCC) and selective corrosion (dezincification or preferred removal of a phase). The experimental investigations of the present study clarify the influen…
Abstract The structure and the composition of adsorbed protein films containing human serum albumin (HSA) and/or human insulin were studied with time‐of‐flight secondary ion mass spectrometry (ToF‐SIMS). The proteins were adsorbed either on native polycarbonate (PC) membranes or on PC membranes treated with poly( N ‐v…
Single-wall carbon nanotubes (SWCNTs) have been doped in the nematic matrix of a room temperature liquid crystalline material 4-(trans-4'- n -hexylcyclohexyl)isothiocyanatobenzene (6CHBT). Effect of SWCNTs doping on various display parameters, namely, threshold voltage, dielectric anisotropy, and splay elastic constan…
We report the observation of two gaps in the superconductor SmFeAsO 0.9 F 0.1 (F–SmFeAsO) with T c = 51.5 K as measured by point-contact spectroscopy. Both gaps decrease with temperature and vanish at T c , and the temperature dependence of the gaps is described by the theoretical prediction of the Bardeen–Cooper–Schr…
Abstract The microstructures of (1 − x )(TeO 2 )– x PbF 2 , ( x = 0.1, 0.15, and 0.25 mol) glasses were investigated by using the Raman spectroscopic technique. The effect of compositions on the TeO 2 glass networks and the intensity ratios of the deconvoluted Raman peaks were determined. The results confirm that the…
Thermoplastic polyurethanes (PU) were prepared from 4,4'-diphenyl methane diisocyanate (MDI), polyether polyol and 1,4 butane diol with and without a hindered amine light stabilizer (Tinuvin®-123) and UV absorber (Tinuvin®-400). The accelerated hygrothermal and UV aging were performed at different humidity and aging t…
Recent observations of photoactive silicon-vacancy (Si-V) color centers in diamond nanoparticles less than 10 nm in size has prompted interest in this material for optical labeling in biomedical applications. In order to be useful in such situations, these Si-V defects need to be in sufficient concentrations, and must…
Abstract Ein selbstorganisiertes Fe II 4 ‐Quadrat zeigt sowohl einen thermischen als auch einen lichtinduzierten Übergang zwischen einem Zustand mit vier High‐Spin(HS)‐Zentren und einem Zustand mit je zwei benachbarten High‐Spin‐ und Low‐Spin(LS)‐Zentren. Der Spinübergang ist mit den magnetischen Wechselwirkungen geko…