Materials Literature
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Monte Carlo simulations are used to model the self-organizing behavior of the biomineralizing peptide KSL (KKVVFKVKFK) in the presence of phosphate. Originally identified as an antimicrobial peptide, KSL also directs the formation of biosilica through a hypothetical supramolecular template that requires phosphate for…
Polyvinyl acetate (PVAc) is considered to be a type of environmental friendly adhesive, and montmorillonite (MMT) is a cheap and accessible natural nanomineral. MMT was first organically activated by dioctadecyl dimethyl ammonium bromide (DOAB). The intercalated nanocomposite of MMT-DOAB was added during the synthesis…
Abstract Lead sulfide (PbS) with various morphologies including flowerlike, microsphere, multipod, six‐armed star, and truncated octahedron has been synthesized selectively under hydrothermal conditions. The synthesis procedure variables such as concentration of the citric acid (CA), kinds of surfactant, reaction temp…
Recent successful experiments with nitrogen as a seeding gas in fusion plasma devices, together with the decision to use beryllium as an armor material in the international fusion experiment ITER, have triggered interest in interactions of energetic N ions with Be and the influence of possible compound formation on pa…
In recent years, a new type of bulk nanostructured thermoelectric material Ag 1− x Pb m SbTe 2+ m (LAST) has been developed featuring significantly improved figure of merit ( ZT ) (up to 2.1 at 800 K). Its excellent ZT is largely attributed to the nanoscale coherent interface that promotes phonon scattering while havi…
The preparation of gold nanoparticle (AuNP) assemblies was conducted by the synthesis and dipolar assembly of ferromagnetic core-shell nanoparticles composed of AuNP cores and cobalt NP shells. Dissolution of metallic Co phases with mineral acids afforded self-assembled AuNP chains and bracelets.
Degradable phosphate glass fiber is a synthetic fiber and silk is one of the strongest natural fibers. In this study, composites are fabricated from PP reinforced with phosphate glass fiber and silk fiber using compression molding. Tensile testing, flexural testing and impact testing are carried out to evaluate the co…
In this short critical review, selected examples of current (within the past two years) synthetic efforts toward the construction of high-spin molecules are explored, including the use of metal complexes containing stable free radical ligands, lanthanide or actinide complexes, and other coordination clusters, or a com…
Stufenweise: Erstmals wird für FeIII ein zweistufiger magnetischer Spinübergang mit strukturellen Phasenübergängen beschrieben. Die Übergänge werden beim Abkühlen bei 187 K und 90 K beobachtet; beim Erwärmen tritt eine Hysterese während des ersten Crossovers bei 106 K auf. Die Zwischenphase ist über einen Bereich von…
Bulk As40Se60 glass was prepared by melt quenching technique. Amorphous films of As40Se60 were prepared by thermal evaporation technique then exposed in UV light for 10 minutes. Virgin and exposed thin films were analyzed using transmission spectra to determine thickness (d), refractive index (n), extinction coefficie…
To overcome limitations of flow-induced rupturing and obtain nanodroplet sizes approaching the micellar scale, we make oil-in-water nanoemulsions having a dispersed phase that contains lower- and higher-molecular-weight oils. After nanoemulsion formation by extreme flow-induced droplet rupturing, the nanodroplets beco…
We report on the optimization of nanostructured copper phthalocyanine (CuPc) thin films for idealized organic photovoltaic (OPV) architectures using advanced substrate motion and periodic seeding. Oblique angle deposition (OAD), a subset of glancing angle deposition (GLAD), has recently been used to enhance small mole…
The freshwater common pond snail Lymnaea stagnalis produces embryos that complete direct development, hatching as shell-bearing individuals within 10 days despite relatively low ambient calcium and carbonate availability. This development is impaired by removal of ambient total calcium but not by removal of bicarbonat…
Mannose-substituted blue-fluorescent cationic conjugated polyelectrolyte ( P1 ) and yellow-fluorescent neutral conjugated oligomer ( 6 ) are synthesized via the combination of Suzuki coupling polymerization and click chemistry. The spectral overlap between the emission of P1 and the absorption of 6 allows one to blend…
In this paper the photocontrolled manipulation of solid materials on the surface of a liquid crystalline thin film is described. Three different types of films namely cholesteric liquid crystal (ChLC), compensated nematic liquid crystal (NLC) and nematic LC were used. The rotational and translational manipulation of t…
Luminescent and porous silica fibers have been successfully prepared by using the electrospinning process. The obtained multifunctional silica fibers, which possess a porous structure and display blue luminescence, can serve as a drug delivery host carrier, using ibuprofen (IBU) as a model drug, allowing the investiga…
The photoreactivity of two iron(II)−styrylpyridine frameworks Fe(stpy) 4 (NCSe) 2 (stpy = 4-styrylpyridine) has been investigated for the very first time in a crystalline solid. A quantitative cis-to-trans isomerization of stilbenoids is shown to occur in the confined environment of the inorganic solid. The photochrom…
In this study, the sandwich plank consisted of 7D polyethylene teraphthalate (PET), thermoplastic polyurethane (TPU) honeycomb grid, and polyurethane (PU) foam; 7D PET and 4D low melting polyester fibers were needle-punched and thermal-treated so as to form the PET nonwoven layer. The PU foam was foamed with a differe…
As propriedades de termo estabilidade das nanofibras de celulose estão relacionadas diretamente com a sua aplicação e em especial ao processamento de polímeros cujas temperaturas típicas de processamento encontram-se em torno de 200 °C. Neste trabalho, nanofibras de algodão comercial foram extraídas empregando-se dife…
We demonstrate a strategy for producing polymer bioconjugates which display both enzymatic and thermal responsiveness. This is achieved by combining the thermo-responsive properties of poly(2-isopropyl-2-oxazoline) (PiPrOx) with the self-assembly properties of fluorenylmethoxycarbonyl-tyrosine (Fmoc-Y), controlled by…