Materials Literature
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The paper presents the investigation into a possible new photovoltaic (PV) application of carbon nanotube-based elastic layers, manufactured by a screen-printing technique. The optical and mechanical properties of these layers are investigated and compared with ITO, standard transparent conductive oxide utilized in ph…
A comprehensive study is presented on the short-time dynamics in suspensions of charged colloidal spheres. The explored parameter space covers the major part of the fluid-state regime, with colloid concentrations extending up to the freezing transition. The particles are assumed to interact directly by a hard-core plu…
An ordered mesoporous nanocomoposite of carbon-MoO 2 was prepared by incorporation of Mo precursor into mesopores of ordered mesoporous carbon after acid treatment. In spite of crystal growth, inner mesopores of the carbon were covered by MoO 2 , which was attributed to strong interaction between the Mo precursor and…
We report a bifunctional hollow porous microsphere composed of single-component BaMoO4 : Pr3+ nanocrystals by a facile template-free synthesis. All the as-synthesized hollow microspheres are well-dispersed with a diameter of 2–4 μm and the BaMoO4 : Pr3+ nanocrystals measure 30–60 nm in diameter. It is observed that th…
Chiral diporphyrin nanotweezers 1 consisting of two chiral porphyrins with N-substituted 3,6-carbazolylene in between have been studied for the separation of single-walled carbon nanotubes (SWNTs). As compared to the analogous nanotweezers 2 without an N-substitutent, nanotweezers 1 with the N-octylcarbazolylene space…
We have demonstrated a facile strategy to artificially design and synthesize novel polyhedron-aggregated multi-facet Cu2O homogeneous structures via a seed-mediated solution method. The polyhedron-aggregated Cu2O homogeneous structures with high-index {522} facets exhibit higher photocatalytic activity for enhancing d…
Hydroxypropyl cellulose (HPC) was used as carrier material to prepare comb-like grafted block copolymers having an amphiphilic core–shell structure. The hydroxyl groups of HPC were partially protected with trimethylsilyl groups and the free OH groups used to initiate the ring opening polymerisation (ROP) of L-lactide.…
Tungsten oxide nanobrushes were synthesized using a solvothermal approach that lead to self-branching in the presence of citric acid and hexadecylamine as surfactants. Our synthetic approach yielded branched nanorods of tungsten oxide in a single synthetic step. Based on our results, we propose a phenomenological path…
We present a self-consistent field theoretical study of the microstructure of concave cylindrical brushes as a function of the cylinder radius, grafting density, grafted chain length, and the solvent quality. We show that the results for the radial monomer density profile and the distribution of the free ends are in g…
Bifunctional, pH-activatable BODIPY dyes were developed and incorporated in mannose cluster-containing activity-based probes for cysteine proteases. Mannose receptor-dependent uptake of the probes in dendritic cells, followed by trafficking to acidic cellular compartments resulted in fluorescence as seen by live-cell…
Transparent and smooth silica thin films with a very high porosity were prepared by linking zeolitic nanoslabs into open mesoporous networks. Calcined films characterized by ellipsometric porosimetry presented pore sizes in the range of 6–18 nm and porosities of 70–90% depending on the temperature of assembly of the n…
New photosensitive precursors for the low-temperature preparation of ferroelectric PbTiO3 thin films are obtained by using a sol–gel synthetic route. The reaction of N-methyldiethanolamine (MDEA) with lead acetate and titanium bis(acetylacetonate) diisopropoxide reagents leads to the formation of metal-MDEA complexes…
Gold catalysts have been modified by Ru. The sequential deposition of the metals produced very active catalysts for the liquid phase oxidation of aliphatic alcohols which differentiate very much from monometallic counterparts and depends on the order of the addition of the two metals. The typical selectivity showed by…
A novel and simple method to prepare well dispersed single-walled carbon nanotubes with strong visible fluorescence in water is reported. The visible fluorescence was found to be responsive to pH value and metal ions, and tunable emission ability of oxidized SWCNTs depending on the excitation wavelength and a novel se…
Air ingress with graphite burning belongs to the accident scenarios in HTRs with potentially severe consequences. This paper gives an overview of basic phenomena of graphite burning like ignition conditions and moving reaction fronts. The pioneering graphite burning experiments of Don Schweitzer are successfully reeva…
Semiconducting single-walled carbon nanotubes are one-dimensional (1D) quantum nanostructures and their unique optical responses arise from stable 1D excitons with huge binding energies. Here we review recent studies on optical properties of semiconducting carbon nanotubes. The diameter dependence of luminescence spec…
The objective of this review is to provide an overview and a classification of the key literature on models of non-Fickian case II type diffusion. Several extensive review articles concerning non-Fickian diffusion exist in the literature; our objective is not to reproduce these worthy contributions. Rather, we focus o…
Quantum dots (QDs) encapsulated with high affinity ligands, specifically binding organic ligands, such as antibodies, peptides or small molecules, have been used in intracellular imaging and targeting. In this work, a series of folate-receptor targeted QDs, in which tumor-targeting folic acid (FA) was conjugated to th…
The coating of nanoscaled carboxylated carbonaceous fragments on carbon nanotubes (CNTs) has been directly observed in chemical imaging with a concurrent identification of their electronic structure by scanning transmission X-ray microscopy. The coating also shields the detection of the CNT/nanoparticle interaction.
Azoderivatives show faster thermal cis-to-trans isomerisation kinetics when they are under the influence of the nematic mean field than dissolved in isotropic solution. The local order parameter induced in the azo-dye by the host mesogen determines the rate of its thermal cis-to-trans isomerisation process. In this wa…