Binding and templation of nanoparticle receptors to peptide α-helices through surface recognition
Nanoparticles featuring highly flexible sidechains template to peptides, demonstrating substantial pre-organization of the particle monolayer.
Materials Literature
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Direct excitation luminescence spectroscopy of Eu(iii) complexes of 1,4,7-tris(carbamoylmethyl)-1,4,7,10- tetraazacyclododecane derivatives and kinetic studies of their catalytic cleavage of an RNA analog
The macrocycles 1,4,7-tris(carbamoylmethyl)-1,4,7,10-tetrazacyclododecane (1), 1,4,7-tris[(N-ethyl)carbamoylmethyl]-1,4,7,10-tetraazacyclododecane (2), 1,4,7-tris[(N,N-diethyl)carbamoylmethyl]-1,4,7,10-tetraazacyclododecane (3) and their Eu(III) complexes are prepared. Studies using direct Eu(III) excitation luminesce…
Fatigue Crack Growth Behavior and Hydrogen Penetration Properties in Austenitic Stainless Steels Exposed to High-pressure Hydrogen Gas Environments
Hydrogen penetration properties into stainless steels with and without pre-strain exposed to high-pressure hydrogen environments and effects of hydrogen and martensite on fatigue crack growth behavior of SUS304, SUS316L and SUS310S were investigated. The hydrogen penetration behavior into the austenitic stainless stee…
Model of internal geometry of textile fabrics: Data structure and virtual reality implementation
The internal architecture of a textile affects its mechanical behaviour (deformability, draping, permeability etc.). It is also important for properties of the textile composites (stiffness, strength etc.). The internal geometry of a wide range of fabrics - 2D and 3D woven, two- and three-axial braided, knitted, multi…
Phonon characteristics and photoluminescence of bamboo structured silicon-doped boron nitride multiwall nanotubes
Bamboo structured silicon-doped boron nitride multiwall nanotubes are synthesized via catalyst-assisted pyrolysis of a boron-containing polymeric precursor. The nanotubes are characterized using transmission electron microscopy, x-ray diffraction, Raman, and Fourier-transformed infrared spectroscope. The results sugge…
Study on high-efficiency fluorescent microcapsules doped with europium β-diketone complex by LbL self-assembly
Rare-earth beta-diketone complex doped microcapsules with high efficiency fluorescence fabricated by the LbL technique based on electrostatic and charge-dipole interactions are reported.
Heat treatment impact on the structure of die-cast magnesium alloys
AbstrAct Purpose: In the following paper there have been the structure and properties of the MCMgAl6Zn1 magnesium cast alloy as-cast state and after a heat treatment presented. Design/methodology/approach: A casting cycle of alloys has been carried out in an induction crucible furnace using a protective salt bath Flux…
Mixed Diffusion and Charge-Transfer-Controlled Oxygen Reduction on Dense La[sub 1−x]Sr[sub x]Co[sub 0.2]Fe[sub 0.8]O[sub 3−δ] Electrodes with Various Sr Contents
The oxygen reduction mechanism of dense mixed-conducting (LSCF) electrodes with various Sr contents was investigated by employing ac-impedance spectroscopy and potentiostatic current transient (PCT) technique. From the analyses of the ac-impedance spectra and the cathodic PCTs measured on the electrodes as functions o…
Coplanar Electrodes Design for a Single-Chamber SOFC
Solid-oxide fuel cells (SOFC) made of conventional materials with coplanar interdigitated electrodes located on the same side of the electrolyte have been fabricated and tested in a uniform mixture of methane and air in order to evaluate the influence of various operating parameters on cell performances. Anode thickne…
On the ringdown transient of transformers
In this thesis a general purpose transformer model for low and medium frequency transient studies is developed and verified. The inrush current phenomena during no-load energization of power transformer is analyzed with special attention. The main challenge is to develop a general model that is valid for a wide range…
Thermoelectric Properties of Combustion Synthesized and Spark Plasma Sintered Sr<SUB>1−<I>x</I></SUB>R<I><SUB>x</SUB></I>TiO<SUB>3</SUB> (R = Y, La, Sm, Gd, Dy, 0<<I>x</I>≤0.1)
Thermoelectric properties of combustion synthesized and spark plasma sintered rare-earth-doped (Y, La, Sm, Gd and Dy) SrTiO3 was investigated from room temperature to 870 K toward the viewpoint of energy and time saving without deterioration in thermoelectric properties. All the rare-earth-doped SrTiO3 were successful…
High Throughput Screening of Low Temperature CO Oxidation Catalysts Using IR Thermography
The catalytic oxidation of carbon monoxide to carbon dioxide is an important process used in several areas such as respiratory protection, industrial air purification, automotive emissions control, CO clean-up of flue gases and fuel cells. Research in this area has mainly focused on the improvement of catalytic activi…
Single Gold Nanorod Detection Using Confocal Light Absorption and Scattering Spectroscopy
Gold nanorods have the potential to be employed as extremely bright molecular marker labels for fluorescence, absorption, or scattering imaging of living tissue. However, samples containing a large number of gold nanorods usually exhibit relatively wide spectral lines. This linewidth limits the use of the nanorods as…
Dependence of nanomechanical modification of polymers on plasma-induced cross-linking
The nanomechanical properties of low-density polyethylene (LDPE) modified by inductively coupled, radio-frequency Ar plasma were investigated by surface force microscopy. The polymer surface was modified under plasma conditions of different ion energy fluences and radiation intensities obtained by varying the sample d…
An AFM study of the effect of chemical treatments on the surface microstructure and adhesion properties of flax fibres
The mechanical properties of fibre-reinforced polymer composites are largely dependant on the adhesion between the matrix and the fibre. In order to enhance the interaction between flax fibres and unsaturated polyester resins, raw fibres were chemically modified using sodium hydroxide, sodium hydroxide plus acetic anh…
Intergranular Corrosion of 2024 Alloy in Chloride Solutions
Experiments were performed to determine the propagation kinetics of intergranular corrosion on 2024 aluminum alloy immersed in 1 and chloride solutions. Tests consisting of immersion in a corrosive solution followed by optical observations on sectioned samples were carried out. This method was found to be time consumi…
Electrochemical Characterization of a Hybrid Capacitor with Zn and Activated Carbon Electrodes
A hybrid capacitor (HC) with an aqueous electrolyte solution was assembled using a Zn negative electrode and an activated carbon (AC) positive electrode. The electrochemical properties of the HC were compared with an electric double-layer capacitor (EDLC) having two AC electrodes. The HC cell successfully functioned a…
Corrosion resistance of Cr-Ni-Mo steel intended for urological stents
This work presents the influence of the surface treatment and plastic strain of Cr-Ni-Mo stainless steel, intended for implants applied in urogenital surgery, on the steel's corrosion resistance. Tests were carried out in simulated urine at a temperature of 37 1C and pH = 66,4. In particular, pitting and crevice corro…
Does supercooled liquid Si have a density maximum?
We have performed precise measurements of the density of supercooled liquid silicon (l-Si) in the temperature range of 1530-1800 K using an electromagnetic levitation (EML) technique with static magnetic fields. We also performed first-principles molecular dynamics simulation (FPMD) of supercooled l-Si. The observed d…
Studies of a linear single-molecule magnet
Reaction of the dinuclear complex [Mn2O2(bpy)4](ClO4)3 with H3cht (cis,cis-l,3,5-cyclohexanetriol) in MeCN produces the complex [Mn3(Hcht)2(bpy)4](ClO4)3.Et2O.2MeCN (1.Et2O.2MeCN). Dc magnetic susceptibility measurements reveal the existence of weak ferromagnetic exchange between the three Mn ions, leading to a spin g…