Materials Literature
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Here, a simple and novel approach is reported for developing a new class of transparent chemical vapor sensors with a low power consumption, high sensitivity, good selectivity, and excellent environmental stability by depositing multiwalled carbon nanotubes on prepatterned polymer substrates using supramolecular assem…
Abstract Polymeric materials formed via layer‐by‐layer (LbL) assembly have promise for use as drug delivery vehicles. These multilayered materials, both as capsules and thin films, can encapsulate a high payload of toxic or sensitive drugs, and can be readily engineered and functionalized with specific properties. Thi…
Investigations on π-cell, a sandwich cell with the director rotating by 180°, demonstrate the possibility to obtain nematic transitions between two textures with different topologies, for instance between an untwisted state and a π-twisted one. These fast textural changes can be obtained by bulk order reconstruction,…
The present study was designed to explore the ability of polymeric nanoparticles to restore drug sensitivity to P-glycoprotein over-expressing cancer cells. A multidrug-resistant cell line 2780 AD and its sensitive parent cell line A2780 were studied in cell culture and as a xenografted tumour model. Paclitaxel was in…
Metal-ferroelectric-insulator-silicon diodes with Bi3.15Nd0.85Ti3O12 (BNT) as the ferroelectric layer and Y2O3-stabilized ZrO2 (YSZ) as the insulating buffer layer have been fabricated. Measurements revealed that the memory window of the fabricated diode reduces with increasing operating temperature, which is due to t…
Fluorine in bloom: A nonpolar fluorocarbon/hydrocarbon tetrablock self-assembles into a first monolayer consisting of an array of densely packed discrete circular surface micelles (dark); this layer is surmounted by a second layer of such nano-objects (light).
The role of charge compensatory additives viz. monovalent ions (Li + , K + , and Na + ) codoped with Tb 3+ in strontium silicate phosphors is investigated. The addition of charge compensators enhances the luminescence intensity of the prepared phosphors because they neutralize the charge generated by Tb 3+ substitutio…
Atomistic models of β-sheet crystals with varying number of alanines were mechanically tested in Molecular Dynamics simulations. The gain in mechanical robustness per residue is maximal for strands that are 8 residues long, because the external force is efficiently deflected into neighbouring strands over the distance…
Magnificent CdS three-dimensional nanostructure arrays, composed of caky plating made up of Cd micro-platelet arrays which are surrounded by an outer layer of well-aligned CdS nanowire/pillar arrays, were successfully prepared through a combination of electroplating and subsequent solvothermal reaction on Cd-coated co…
We investigated a new fabrication process for high-quality, uniaxial-oriented grown Dion–Jacobson perovskite (DJP) RbLaNb2O7 thin films by means of excimer laser assisted metal organic deposition. Oriented crystal growth occurred only by excimer laser irradiation in air at 400 °C after a deposition of metal–organic so…
Abstract The catalytic properties of gold catalysts leached with sodium cyanide solutions were investigated for the propylene epoxidation reaction with H 2 /O 2 mixtures. Unexpectedly, the selectivity of the Au/TS‐1 catalysts changed from propylene oxide to propane as a result of the cyanide treatment. Measurements by…
Limit periodic point sets are aperiodic structures with pure point diffraction supported on a countably, but not finitely generated Fourier module that is based on a lattice and certain integer multiples of it. Examples are cut and project sets with p-adic internal spaces. We illustrate this by explicit results for th…
The synthesis of semiconductor nanocrystalline networks using weak capping ligands in aqueous media has been demonstrated. Carbohydrates, including ?-cyclodextrin, D -(+)-glucose, D -glucosamine, lactobionic acid, sucrose, and starch were chosen as weak ligands to facilitate the formation of PbTe nanoparticle networks…
The stability of Co2Zn11 and Al8V5 gamma-brasses, both of which are composed of a transition metal element and polyvalent elements Zn or Al, can be discussed in terms of d-states-mediated Fermi surface–Brillouin zone (FsBz) interactions in the context of first-principles full-potential linearised augmented plane wave…
The silica-encapsulated luminescent lanthanide nanoparticles have been developed for the selective tagging of a wide range of important targets in recent years, however, they are mainly limited to europium and terbium compounds. In this work, two types of europium-containing dual-luminophore silica nanoparticles, sili…
Abstract “Tree‐shaped” copolymers constituted by an m‐PEG trunk and poly( L ‐lactide) or poly( D , L ‐lactide) branches were obtained. The m‐PEG was functionalized at the terminal chain with two (G1) and four (G2) hydroxyl groups, then reacted with Al(CH 3 ) 3 to produce aluminum alkoxide species, active as initiators…
Abstract The possibility of achieving templates of highly ordered nanostructures with crystalline nano‐objects embedded inside an amorphous matrix is addressed. Atomic force microscopy and grazing incidence small‐angle X‐ray scattering (GISAXS) are used to probe the morphology at the surface and inside thin films of t…
A series of structural complementary decapeptides with phenyl boronic acid tails or borono-decapeptides (BPs) were designed and synthesized for supramolecular self-assembly. After dissolving these borono-decapeptides in deionized (DI) water, well-defined nanofibers were formed in BP1 (B(OH)(2) VEKELVKEKL-OH) and BP3 (…
Solution-processed Mg-alloyed ZnO nanowire arrays have been achieved recently without using high temperature annealing process. By introducing thermal annealing processes in oxygen-rich ambient condition, the UV near-band-edge (NBE) emission was surprisingly mitigated until disappeared with annealing temperature incre…
We report here the preparation of luminescent organosilica microcrystals with rectangular-plate morphology by a facile method of reacting silylated β-diketone with lanthanide ions under reflux without any structure-directing agent. Factors affecting the formation of the morphology including reaction temperature and th…