Materials Literature
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ZnS thin films with nano-rod and chiral sculptured structures of different thicknesses were deposited on glass substrates. Nano-structure of the films was obtained, using field emission scanning electron microscopy (FESEM). Their optical properties were measured by spectrophotometry in the spectral range of 350–1000 n…
Well-defined Au-SiO(2)-CdTe composite nanoparticles were synthesized via a multistep chemical approach in water solution to gain insight into the interaction between metal and semiconductor nanostructures. Photoluminescence measurement reveals that the fluorescence of CdTe quantum dots (QDs) in this composite with opt…
Magnetization modulation by ferroelectric polarization switching is reported for the ferromagnetic-ferroelectric EuO/BaTiO3 heterostructure. The value of the magnetization critical exponent β is consistent with the expected Heisenberg-like ferromagnetism of EuO and reported Curie temperature. The critical exponent is…
In this study, we report the light-emitting assistance effect of perylene on a polymer electrochemiluminescence (ECL) device using poly(3-octylthiophene-2,5-diyl) (P3OT). An ECL device is a liquid type self-luminous device with a simple structure, and can be fabricated by a relatively easy procedure. Significant impro…
We perform in-plane optical spectroscopy measurement on (00l) FeSe thin film grown on SrTiO${}_{3}$ substrate by the pulsed laser deposition method. The study indicates that the low-frequency conductivity consists of two Drude components: a broad one which takes up most of the spectral weight and a very narrow one rou…
This work demonstrates the anomalous crystal growth of isotactic polystyrene (iPS) in nanorod arrays with different rod sizes. At the bottom of the nanorods, the crystals in bulk film grow into nanorods along either the [110] or [100] direction parallel to the rod axis. On the top side of the nanorods, the polymer exh…
The conformation change of bovine serum albumin (BSA) induced by bioactive titanium surfaces, including acid-alkali-treated titanium (AA-Ti) and alkali-heat-treated titanium (AH-Ti), was studied, and its effects on the activity of MC3T3-E1 cell were evaluated. Pure titanium metal (P-Ti) was used as control. The AA-Ti…
This study aimed to investigate in vitro the montmorillonite ( MMT ) as carrier for gemcitabine hydrochloride (d F d U . HC l) and oxaliplatin ( DACH ‐ P t). The maximum adsorption capacities of MMT and their respective mechanisms were determined through a soaking procedure (387.5 mg d F d U . HC l/g MMT were adsorbed…
A tunable red photoluminescence from a-Si:H/a-SiNx multilayers was modulated in the wavelength range of 800–640 nm by controlling the thickness of the a-Si:H sublayer from 4 to 1.5 nm. Subsequent annealing was used to improve red photoluminescence without recrystallization of the amorphous silicon sublayers. The signi…
A detailed investigation of the solid state and solution structures of lanthanide(III) complexes with the macrocyclic ligand 2,11,20-triaza[3.3.3](2,6)pyridinophane (TPP) is reported. The solid state structures of 14 different Ln(3+) complexes have been determined using X-ray crystallography. The ligand is coordinatin…
Multicomponent synthetic gas (syngas) mixtures produced from the gasification of coal, low grade fuel, wastes, and biomass offers a novel source of hydrogen production. Gasification also eliminates much of the pollutant emissions from the combustion these fuels. Palladium based membranes offer a promising method for e…
A europium-encapsulating silicon nanotube, Eu 2 @Si 30, has been predicted by density functional theory. Electronic structure analysis shows that in Si–Si chemical bonds there exist sp 2 -like hybridizations induced by the europium atoms, and the hybridizations evidently enhance the stability of the silicon nanotube.…
ABSTRACT Poly(aniline‐ co‐m ‐ferrocenylaniline) and ferricinium‐doped poly(aniline‐ co‐m ‐ferrocenylaniline) were synthesized by a conventional chemical oxidative polymerization, then characterized by spectroscopic techniques and quantitative analyzes. Increasing of the percentages of m ‐ferrocenylaniline in the copol…
The supramolecular self-assembly of the core-substituted naphthalene diimide bearing pyridyl motifs leads to the formation of a variety of nanostructures with pH and solvent control. The detection of HCl can be monitored by UV/Vis and fluorescence spectroscopy, as well as the naked eye, with a change in colour (blue t…
Highly fluorescent, discotic trioxatriangulenium dyes were aligned by simple spin-casting on substrates with friction transferred PTFE layers. The fluorescent crystalline thin films show near perfect macroscopic alignment on centimeter large areas directly from spin-casting. Gracing Incidence X-ray Diffraction (GIXD)…
Abstract The review surveys the crystal chemistry of inorganic compounds belonging to the structure type of clathrate-I. The compounds of this family exhibit an unexpected variety of both chemical composition and features of the crystal structure. The basic crystal structure of clathrate-I and different variants of it…
The photophysical properties in solution of three generations of carbazole-based dendrons and dendrimers with fluorenyl surface groups were studied using steady-state, time-resolved femtosecond transient absorption and anisotropy, and coherent two-dimensional ultraviolet spectroscopy. It was found that increasing the…
The temperature dependent resistivity and thermo-electric power of Cr-N codoped TiO2 were compared with that of single element N and Cr doped and undoped TiO2 using epitaxial anatase thin films grown by pulsed laser deposition on (100) LaAlO3 substrates. The resistivity plots and especially the thermoelectric power da…
Fokus auf chemischen Übergängen: Die Epoxidierung einer Doppelbindung, die mit einem Fluoreszenzfarbstoff konjugiert ist, wurde auf Einzelmolekülniveau untersucht. Die direkte Beobachtung der Oxiranbildung – zu erkennen an der spektralen Verschiebung vom Substrat- zum Produktzustand – offenbart einen alternativen Reak…
Cell colonization of synthetic polymers can be regulated by physical and chemical modifications of the polymer surface. High-density and low-density polyethylene (HDPE and LDPE) were therefore activated with Ar⁺ plasma and grafted with fibronectin (Fn) or bovine serum albumin (BSA). The water drop contact angle usuall…