Materials Literature
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When amorphous materials are compressed their structures are expected to change in response to densification. In some cases, the changes in amorphous structure can be discontinuous and they can even have the character of first-order phase transitions. This is a phenomenon referred to as polyamorphism. Most evidence fo…
Based on coarse grained simulations of a specially adapted model for bisphenol-A polycarbonate (BPA-PC) we generate by inverse mapping, the reintroduction of chemical details, well equilibrated all-atom conformations and time trajectories of dense polymeric melts for up to 7.8 µs. This is several orders of magnitude m…
The role of the polymeric binder nature and composition on the electronic transport properties of composite electrodes based on , carbon black (CB), and poly(ethylene oxide) (PEO)/poly(vinylidene difluoride)- co -hexafluoropropylene/ethylene carbonate–propylene carbonate (EC–PC)/Li bis(trifluoromethansulfon)imide bind…
Electrodes of hydrous ruthenium oxide were prepared by electrophoretic deposition (EPD) without binder and carbon additives. Through EPD and heat-treatment , a network of nanoparticles (ca. ) was developed with porous structure (packing density ca. ). As a result, high specific capacitance ( at and at ) was obtained,…
Abstract A new magnetic mesocellular mesoporous silica support featuring a 3D open‐pore structure has been developed for highly efficient, filtration‐free recycling of chiral ligands for catalytic asymmetric dihydroxylation. Reactions using the ligand immobilized on this magnetic silica system exhibited almost the sam…
Oscillations of a nominally hemispherical, inviscid drop on a solid plate are considered accounting for the contact line dynamics. Hocking boundary conditions hold on the contact line: the velocity of the contact line is proportional to the deviation of the contact angle from its equilibrium value. Natural oscillation…
It was recently shown that doxorubicin (DOX) bound to polysorbate-coated nanoparticles (NP) crossed the intact blood-brain barrier (BBB), and thus reached therapeutic concentrations in the brain. Here, we investigated the biodistribution in the brain and in the body of poly(butyl-2-cyano[3-(14)C]acrylate) NP ([(14)C]-…
Polycaprolactone (PCL) polyurethane (PU) grafted single-walled carbon nanotubes (SWNT-g-PU) were synthesized from hydroxyl functionalized single-walled carbon nanotubes (SWNT-OH) through a two-step reaction. Based on SWNT-g-PU, PCL polyurethane (PU)/SWNT nanocomposites were prepared by further in-situ polymerization.…
Here we report on a new class of supramolecular hydrogels based on dipeptides that consist of beta-amino acids, which may confer proteolytic resistance to the hydrogels for biomedical applications.
Single-cell solid oxide fuel cell experiments using thin-film, sputter-deposited Ni pattern anodes microfabricated on single-crystal yttria-stabilized zirconia (YSZ) electrolyte disks have been performed to examine the electrochemical oxidation of , CO, and mixtures. Porous lanthanum strontium manganate (LSM)/YSZ cath…
Chemical bath deposition (CBD) is an advantageous thin film deposition technique for depositing compound semiconductors at low temperature. In this paper, nickel oxide thin films were prepared by CBD from an aqueous solution composed of nickel sulfate, potassium persulfate, and ammonia at room temperature. Thin film g…
Dinuclear spin crossover molecules can adopt three different spin-pair states: a fully diamagnetic low spin state, [LS–LS], with both iron(II) atoms in the LS state; a paramagnetic mixed spin-pair state [LS–HS]; and an antiferromagnetically coupled [HS–HS] state. Stabilisation of the [LS–HS] state depends on a subtle…
Recent work exploring phase separation and self-assembly in multicomponent polymer fluids using a particle-based self-consistent field simulation method is reviewed. The computational method is placed in the context of classical molecular dynamics and Monte Carlo simulations as well as field-theoretic approaches. Its…
AIM: To evaluate the anticancer property of the dried latex (DL) of Calotropis procera, a tropical medicinal plant, in the X15-myc transgenic mouse model of hepatocellular carcinoma and to elucidate its mechanism of action in cell culture. METHODS: The young transgenic mice were orally fed with the aqueous suspension…
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A mesoporous silica (SBA-15) has been chemically modified with 2-mercaptopyrimidine using the homogeneous route. This synthetic route involved the reaction of 2-mercaptopyrimidine with 3-chloropropyltriethoxysilane prior to immobilization on the support. The resulting material has been characterized by powder X-ray di…
Sources of coherent, monochromatic short-wavelength infrared (1-2 mum) light are essential in telecommunications, biomedical diagnosis, and optical sensing. Today's semiconductor lasers are made by epitaxial growth on a lattice-matched single-crystal substrate. This strategy is incompatible with integration on silicon…
Composite electrodes of yttria-stabilized zirconia (YSZ) with La 0.8 Sr 0.2 Mn O 3 (LSM), La 0.8 Sr 0.2 Fe O 3 (LSF), and La 0.8 Sr 0.2 Co O 3 (LSCo) were prepared and tested as solid oxide electrolyzer (SOE) anodes and solid oxide fuel cell (SOFC) cathodes at 973 K , using cells with a YSZ electrolyte and a Co-ceria-…
PURPOSE: To establish a matrix of parameters to synthesize nanoparticles of different sizes and to investigate the cellular uptake of these nanoparticles by osteosarcoma cancer cells in order to investigate their potential as therapeutic drugdelivery carriers. METHODS: Gelatin A and B were used to synthesize nanoparti…
Monodisperse silica-polyaniline core-shell nanoparticles with an average diameter of 26 nm were synthesized by in-situ polymerisation of aniline monomers adsorbed on the silica surface through electrostatic interactions.