Materials Literature
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We analyze the Seidel wavefront aberrations and spot sizes of gradient index (GRIN) singlet lenses with Δn≈1. We consider and compare curved and planar GRIN lenses with F-numbers of 5 and 1 against equivalent refractive lenses. We find that the planar GRIN lenses generally have larger spot sizes compared to their refr…
To investigate the electromagnetic interaction of molecules inside the nanotubes, we studied the nuclear magnetic resonance properties(NMR) and shielding parameters between nanotubes, after optimizing the structure of nanotubes with a formula BxNx (x = 2,3,4,5) with hybrid density functional theory (B3LYP) using the E…
The dielectric response of the liquid crystal (LC) and LC doped with graphene was studied by using dielectric spectroscopy technique in the frequency range of 100 kHz to 10 MHz at room temperature. The LC material used in this experiment was E7 and the concentration of doping material graphene was acquired as 0.05 wt.…
In this article, we reported the near-field interactions between the Ru(bpy)(3) (2+) complexes and plasmon resonances from the bimetallic nanoshells. The metallic nanoshells were fabricated on 20 nm silica spheres as cores by depositing 10 nm monometallic or bimetallic shells. There were approx. 15 Ru(bpy)(3) (2+) com…
SUMMARY The purpose of this research was to use polyamino carboxylic acids (PACAs) and their combination with sodium hypophosphite (NaH 2 PO 2 ) as a flame‐retardant finishing system for cotton fabrics. Flammability of cotton fabric was evaluated by 45° flammability test, differential scanning calorimetry and measurin…
Mehr als die Summe der Teile: Ein supramolekulares Material kann sich in seinen Eigenschaften deutlich von den Konstituenten unterscheiden. Zwei weder leitfähige noch photochrome oder lumineszierende organische Komponenten bilden durch Selbstorganisation über Kation-π-, π-π- und Carboxylat-Pyridinium-Wechselwirkungen…
Abstract The experimental system formed by an electrochemically etched Au tip and an Au substrate is studied in a tip‐enhanced Raman spectroscopy (TERS) setup with side illumination. A resonant optical cavity is created allowing the interaction between localized surface plasmons (LSPs) from the tip and surface plasmon…
Hybrid polymer-metal nanospheres are potential nano-sized medical devices that can provide multi-functions such as medical imaging and drug/biomolecule delivery. Gold nanoparticle-based hybrid nanospheres are particularly attractive owing to the unique optical and electronic properties that they possess. The polymer i…
Abstract The plasmonic origin of surface‐enhanced Raman scattering (SERS) leads to the concept of hotspots and plasmon coupling that can be realized in the interstitial regions, or on specially engineered, silver and gold nanostructures. It is also possible to achieve spatial locations of high local field or hotspots…
Nanocomposites (NC)s of carboxyl functionalized multi-walled carbon nanotubes (f-MWCNTs) that reinforced poly(amide-imide) have been created via a simple solution casting technique. X-ray diffraction, FT-IR spectroscopy, transmission electron microscopy, and field emission scanning electron microscopy were carried out…
Two partly new [Fe(intz)6](BF4)2 complexes with n = 3 and 4 (i3tz = 1-isopropyl-1H-tetrazole, i4tz = 1-isobutyl-1H-tetrazole) were synthesized and characterised by X-ray powder diffraction, magnetic susceptibility measurements, vibrational, electronic and 57Fe–Mößbauer spectroscopy as well as DSC. The [Fe(i3tz)6](BF4)…
In this paper, a new analytical methodology is proposed to estimate core losses in line-start and inverter-fed induction motors under rotor broken bars. This methodology can be utilized for different supply and load conditions. Core losses are precisely calculated taking into account the effects of nonsinusoidal distr…
Ferrous disulfide (FeS 2 ) nanocrystals were synthesized via a simple hydrothermal reaction. The FeS 2 nanocrystals were then combined in intumescent flame-retardant ethylene–vinyl acetate (EVA/IFR) systems. Thermogravimetric analysis data indicate that the addition of FeS 2 into the EVA/IFR composite can improve the…
We report a highly sensitive method for rapid identification and quantification of rare-event cells carrying low-abundance surface biomarkers. The method applies lanthanide bioprobes and time-gated detection to effectively eliminate both nontarget organisms and background noise and utilizes the europium containing nan…
A broad nanoscopic study of a wide-range of dendritic organic nonlinear optical (NLO) self-assembly molecular glasses reveals an intermediate thermal phase regime responsible for both enhanced electric field poling properties and strong phase stabilization after poling. In this paper, the focus is on dendritic NLO mol…
Electroconductive poly(N-butylaniline)-lignosulfonate (PBA-LS) composite nanospheres were prepared in a facile way by in situ, unstirred polymerization of N-butylaniline with lignosulfonate (LS) as a dispersant and dopant. The LS content was used to optimize the size, structure, electroconductivity, solubility, and si…
This study demonstrates all optical switches between the four diffractive light levels of a body-centered tetragonal photonic crystal. The sample is based on holographic polymer-dispersed liquid crystals that are fabricated using a two-beam interference with multiple exposures. The switching mechanism bases on the eff…
Acid gel caries lesions were created in 3,100 human and bovine enamel specimens and studied with transverse microradiography. Small, significant differences were found. Human enamel lesions were found to be less demineralized, shallower, had a higher ratio of integrated mineral loss (ΔZ) to lesion depth (L), a lower d…
Various carbonate apatite formulae contribute to discrete cuticle structures participating in protective functions of the American lobster, Homarus americanus, integument. Canal walls use their lowest Calcium : Phosphate (Ca : P) ratios to protect exposed surfaces of gland and neuronal canals. The linings insulate mor…
It is established by means of chemical nuclear polarization that the photointeraction of quinones with porphyrin leads to the transfer of an electron with the formation of ion-radical pairs, and then to the transfer of a proton with the reversible reduction of quinone.