Materials Literature
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Electrospinning has recently gained widespread attention as a process capable of producing nanoscale fibres that mimic native extracellular matrix. In this study, we compared the osteogenic differentiation behaviour of human adipose stem cells (ASCs) on a 3D nanofibre matrix of type I rat tail collagen (RTC) and a 2D…
The application of renewable raw materials in the automotive sector became more and more interesting in the last years. For the first time, a material system based on natural fibers and PTP ® , a vegetable based thermoset resin, was produced and manufactured into a bus body component by Sheet-Moulding-Compound-technol…
Porous ceramics have a wide range of applications at all length scales, ranging from filtration membranes and catalyst supports to biomaterials (scaffolds for bone ingrowths) and thermally or acoustically insulating bulk materials or coating layers. Organic pore-forming agents (PFAs) of biological origin can be used t…
We present recent work on a method for depositing silicone nanofilament coatings on surfaces under mild conditions in the gas or solvent phase. The coating shows exceptional properties in an application as a superhydrophobic coating. It can be applied to a variety of substrates, is optically transparent and intrinsica…
The thermodynamic parameters of complexation of Ln(III) cations with tris(2-aminoethyl)amine (tren) and tetraethylenepentamine (tetren) were determined in dimethyl sulfoxide (DMSO) by potentiometry and calorimetry. The excitation and emission spectra and luminescence decay constants of Eu3+ and Tb3+ complexed by tren…
Porous Ta and Al layers that exhibit 280-nm-wide micropores, which are interconnected by 5–50-nm-wide nanopores, were grown by glancing angle deposition (GLAD). The micropore nucleation is facilitated by patterning Si(001) substrates with inverted-pyramidal pit arrays using anisotropic etching through lithographic mas…
Single-walled carbon nanotubes (SWNTs) induce the decomposition of four diacyl peroxides by single electron transfer (SET). Phthaloyl peroxide functionalizes SWNTs to the greatest extent of the four. It was also found that t -butoxy radicals add to SWNTs but that SWNTs fail to inhibit cumene autoxidation. Thus, SWNTs…
Ag nanoplates are the first generated by the reductant aniline in the presence of poly(vinyl pyrrolidone) (PVP) at room temperature without stirring in the reaction process.
Liquid-phase synthesis of methyl formate (MF) was achieved by green carbonylation of methanol with CO on a soluble copper nanocluster catalyst with high activities (e.g. 2.7–6.1 molMF molCu−1 h−1) and 100% MF selectivities under mild reaction conditions (353–443 K, 0.3–3.0 MPa CO), showing that the Cu nanoclusters can…
Different means of attaching streptavidin to surface functionalized silica particles with a diameter of 240 nm were investigated with special focus on suspension stability for electrostatically stabilized suspensions. The influence of two different fluorescent dyes covalently linked to the streptavidin on suspension s…
In this article, we consider a Cahn-Hilliard model with boundaryconditions of Wentzell type and mass conservation. We show thateach solution of this problem converges to a steady state as timegoes to infinity, provided that the potential function $f$ is realanalytic and satisfies certain growth assumptions. Estimates…
Oxidative arylation of ethylene with benzene was examined by using a Pd(OAc)2/heteropoly acid/O2 system under mild conditions. The reaction of benzene with ethylene in the presence of catalytic amounts of Pd(OAc)2 combined with H4PMo11VO40·15H2O (or H3PMo12O40·30H2O), AcONa, and dibenzoylmethane under air at 90–120 °C…
meso-Aryl tribenzosubporphyrin was synthesized by a self-condensation of 3-benzalphthalimidine and by a condensation of phthalimide with phenylacetic acid using boric acid as a template; the compounds derived were characterized based on a wide range of spectroscopic and electrochemical methods.
A wet‐mechanochemical reaction for surface modification of multiwalled carbon nanotubes (CNTs) has been developed. In the treatment, CNTs reacted with potassium hydroxide in alcohol solvent at room temperature under mechanical milling. The results from Fourier transmission infrared spectroscopy demonstrate that the no…
We propose and analyze a goal-oriented a posteriori error estimator for the atomistic-continuum modeling error in the quasicontinuum method. Based on this error estimator, we develop an algorithm which adaptively determines the atomistic and continuum regions to compute a quantity of interest to within a given toleran…
Water soluble CdSe/ZnS nanoparticles with emission maxima from 511 nm to 596 nm and quantum efficiencies ranging from 11% to 28% are synthesized in a facile two-step method in ambient atmospheric conditions using a commercially available microwave reactor.
Glycosaminoglycans (GAGs) are the main components of the extracellular matrix (ECM). Studies have indicated that scaffolds modified by GAGs could improve cell proliferation and differentiation. Chitosan, the second-most abundant nature polysaccharide, has a structure similar to that of GAGs. Due to its relatively lowe…
The activation energies for rotations in low-temperature orthorhombic ammonia borane were analyzed and characterized in terms of electronic structure theory. The perdeuterated (11)B-enriched ammonia borane, (11)BD(3)ND(3), sample was synthesized, and the structure was refined from neutron powder diffraction data at 17…
A simple method of preparing Ag2CO3 nanoparticles utilising high area gamma-alumina nanoneedles has been developed; these are promising antimicrobial agents against diverse bacterial strains.
Time resolved small angle scattering has been employed to follow the formation kinetics of gold nanoparticles from a solution of gold hydrochlorate and tris-sodium citrate at room temperature. While UV irradiation leads to a slow kinetics as observed by optical spectroscopy, the irradiation by the X-rays led to a redu…