Materials Literature
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We investigate experimentally and theoretically plasmon-enhanced optical trapping of metal nanoparticles. We calculate the optical forces on gold and silver nanospheres through a procedure based on the Maxwell stress tensor in the transition T-matrix formalism. We compare our calculations with experimental results fin…
We investigate the structure of the electromagnetic current density for the pseudorelativistic massless spinor effective model for graphene. It is shown that the pseudorelativistic planar massless Dirac theory in the presence of a constant homogeneous electric field actually leads to the recently measured value for th…
The local molecular orientation in the electroclinic effect of the chiral smectic A phase in a surface-stabilised cell has been determined using a time-resolved synchrotron X-ray microbeam diffraction technique. Space- and time-resolved X-ray wide-angle halo scattering under an electric field reveals the static and dy…
Beugehaft: Die Zinkionen-gelenkte Aggregation von tetraedrischen Proteinkäfigen (Zn30:CFMC-112) in einem rhomboedrischen Kristallgitter wird beschrieben. Die Histidin-Seitenketten und exponierten hydrophoben Gruppen, die entlang der Käfighöhlung aufgereiht sind, ermöglichten es, ein flexibles Hämpeptidfragment vom c-T…
New chelates of schiffs base derived from vanillin and anthranilic acid with d-block elements such as Cr+3, Mn+2, Co+2, Ni+2, Cu+2, Zn+2 and Cd+2 have been synthesized and investigated. Their structures were determined on the basis of the elemental analysis, infrared spectroscopy, electronic spectroscopy, thermo gravi…
Abstract Reaktive Trennwandkolonnen bieten eine Möglichkeit, die Vorzüge der Trennwandkolonnen und der Reaktivrektifikation in einem Apparat zu kombinieren. Aufgrund der Neuartigkeit dieses komplexen Verfahrens sind ausgiebige, numerische Untersuchungen unabdingbar. Zu diesem Zweck wurde ein auf dem rigorosen Stoffaus…
Electrodeposition is used for the preparation of nanoparticles and nanostructures that allow, in principle, surface plasmon excitation. The (photo)electrodeposition process of Rh and Au nanoparticles as well as of heterodimeric enzymes onto silicon surfaces is investigated and the resulting structures are discussed wi…
In the elementary scattering of surface plasmon polaritons (SPPs) at individual subwavelength (sub-lambda) objects on metallic surfaces, the in-plane transmission and reflection of SPPs are shown to be two related scattering processes and to satisfy some novel symmetry relations, provided that the objects are mirror s…
Exploring renewable, sustainable and green energy resources is a critical challenge for scientists and engineers. Large-scale ambient energy, such as the solar energy is available but current technologies are not yet ready to capture it with great efficiency. The sun radiates visible light and also infrared energy, so…
The (solid + liquid) phase equilibria of triethanolamine hydrochloride ([HTEA]Cl) ionic liquid and aqueous hydrochloric acid solutions with concentrations from (0 to 8.37) mol·kg −1 were determined by a dynamic method within the temperature range of (285.70 to 344.65) K. Solubilities of [HTEA]Cl were found to increase…
It is a fascinating testament to Shubnikov's great originality and to the terrible times
Purpose: While the recommended analysis method for magnetic resonance spectroscopy data is linear combination model (LCM) fitting, the supervised deep learning (DL) approach for quantification of MR spectroscopy (MRS) data recently showed encouraging results; however, supervised learning requires ground truth fitted s…
Broadband dielectric measurements performed on D-glucose, L-sorbose, D-fructose and D-galactose revealed that, except for the structural relaxation process, one can detect in the liquid phase of these carbohydrates a much slower relaxation mode. Recently we have demonstrated that in D-glucose this relaxation mode migh…
In this paper we investigate the utilization of a patterned photonic crystal layer positioned below the Multiple Quantum Well region of a p-side up LED to improve light extraction and investigate the benefit of adding additional top surface photonic crystal patterning to the same device. Performance for each design is…
The ONIOM2 (B3LYP/6-31G(d,p):UFF) method based on the 78T cluster model was used to study the reaction mechanism of C4 to C6 intermediates during the ethylene aromatization over HZSM-5 zeolite. The catalytic mechanism of acidic zeolite and the effect of zeolite pore size on the shape selectivity for the products was d…
Scanning electron microscopy (SEM) and energy dispersive spectrometry (EDAX) have been used to study the microstructure and interdendritic segregation along mushy zones in samples of superalloy Inconel 718. These samples had been directionally solidified at remelting temperatures of 1600°C and 1700°C. Concentration pr…
Sunlight is an indispensable life source for all organisms in the Earth. These rays arrive to the earth between 280 - 3000 nm wavelengths. Although, small doses of UV rays are useful for life, they cause effects such as sunburn, allergies, early aging in the skin, skin cancer, bruise formations and cataract on human b…
Abstract The phase morphology developing in immiscible poly(styrene‐co‐acrylonitrile) (SAN)/ethylene–propylene–diene monomer (EPDM) blends was studied with an in situ reactively generated SAN‐g‐EPDM compatibilizer through the introduction of a suitably chosen polymer additive (maleic anhydride) and 2,5‐dimethyl‐2,5‐di…
Abstract Coordination polymers containing bisphenol‐A, formaldehyde, and transition metal complexes of ethylenediamine [M(en)2] were synthesized by the reaction of bisphenol‐A, formaldehyde, and M(en)2 complex in alkaline medium, using M for Fe+3, Co+2, Ni+2, Cu+2, and Zn+2. The materials were characterized by element…
The search for new and advanced materials has been the major preoccupation of materials scientists during the past several years. Recent investigations have focused on the improvement of the properties and performance of existing materials and/or synthesizing and developing completely new materials. Signicant improvem…