Materials Literature
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Novel nanocomposite materials have been prepared following a microwave assisted reaction of sucrose with 2 : 1 phyllosilicates belonging to the clay minerals family. In this way, sucrose gives macromolecular intercalation compounds (referred to as “caramel–clay nanocomposites”) when mixtures of this disaccharide with…
Tungsten trioxide thin films are being developed for use in photoelectrochemical devices for solar water splitting, however the material's high bandgap limits device performance. Prompted by success with other metal oxides, bandgap modification of films through doping techniques is proposed. In this work, nitrogen dop…
Peptide-mediated internalization and organelle targeting of quantum dots.
Mononuclear La2O3-supported AuIII complexes synthesised from AuIII(CH3)2(C5H7O2) and characterised by X-ray absorption spectroscopy are highly active, stable CO oxidation catalysts at room temperature, demonstrating the importance of the support in stabilizing catalytically active gold species, which need not include…
Left-handed helical short nanotubes and mesoporous nanofibers were prepared by sol-gel transcription using a new chiral cationic surfactant.
In order to study the role of the direction of the connecting groups in bent-core mesogens we synthesized two series of ten possible achiral isomeric five-ring bent-core compounds in which all aromatic rings are connected by ester groups and each of which possesses the same length of the terminal chains (octyloxy or d…
A new type of collagen/chitosan/heparin matrix, fabricated by gelation of collagen/ chitosan with heparin sodium containing ammonia, was produced to construct livers by tissue engineering and regenerative engineering. The obtained collagen/chitosan/heparin matrix was found to be highly porous, swelled rapidly in PBS s…
A resonant diffraction grating comprising a mirror, a dielectric layer and a high index corrugation at the layer-air interface is shown to exhibit off-Littrow the record diffraction efficiency of 99% in the -1st reflected order at 1064 nm wavelength thanks to the excitation of a leaky mode of the layer. Such high figu…
Highly ordered near-stoichiometrical polycrystalline InSb nanowire arrays have been fabricated by direct current (dc) electrodeposition inside the nanochannels of anodic alumina membranes (AAMs) and subsequent annealing. X-ray diffraction patterns and X-ray energy dispersion analysis reveal the change of crystal struc…
The size and shape of nanoparticles can be controlled by varying the pH and concentration of the fulvic acid (FA) colloidal solution. FA thin solid films with embedded Au nanoparticles have been fabricated, and their optical field enhancing properties tested in surface-enhanced Raman scattering (SERS). High-resolution…
A study of the electrodeposition (ED) of silicon from silicon halides in a nonaqueous electrolyte solution is described. In spite of the use of nonoxidizing electrolytes, the electrodeposits usually become oxidized on air exposure. In similarity to other work, it is postulated that this is due to the deposit being for…
To probe the microscopic balance of forces close to a moving contact line, the boundary conditions around viscous drops sliding down an inclined plane are investigated. At first, the variation of the contact angle as a function of the scale of analysis is discussed. The dynamic contact angle is measured at a scale of…
A lithium-ion highly conductive new crystal was first precipitated in the Li 2 S – P 2 S 5 glass-ceramics obtained by crystal- lization of the glasses. The 70 Li 2 S ⋅ 30 P 2 S 5 ( mol % ) glass-ceramic heated at 360 ° C showed the highest conductivity of 3.2 × 10 − 3 S cm − 1 at room temperature and the lowest activa…
Zinc oxide superstructured films with superhydrophobicity or superhydrophilicity were successfully prepared by treatment of 1 mM of a Zn2+–hexamethylenetetramine mixed solution at 95 °C for a desired aging time.
The development of a type of carbon-nanotube-promoted Co-Cu catalyst, which displays excellent performance for highly effective and selective formation of the C(2-4)-oxygenates, especially BuOH and DME, from syngas, is reported.
Ag and Ru nanoparticles stabilized by H5PV2Mo10O40, prepared by a sequence of redox reactions and supported on alpha-alumina, were effective catalysts for the direct aerobic epoxidation of alkenes in the liquid phase.
The position of the surface plasmon resonance (SPR) band of Au nanoparticles was tailored by controlling the refractive indices (n) of the embedding matrices, to develop different coloured coatings on glass substrates. Five sets of Au nanoparticle doped coatings were prepared from sols derived from tetraethyl orthosil…
This paper provides a convenient and simple method for fabricating of large amounts (kilogram-scale) of nanomaterials containing nanoparticles in a polymeric matrix. The encapsulation was done by thermal decomposition of metal containing compounds (MRn; M=Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Mn, Mo, Nd, Ni, Pt, Re, Ti, Pb,…
This report about backscattering measure-ments of the speckle produced by strongly-scattering liquid media shows that the size of the backscattered speckle depends on scattering and anisotropy coefficients. These measurements were aimed at assessing the effects of polarization characteristics of the incident laser bea…
Silicone-based polymers with reduced protein adsorption were successfully prepared by incorporating mono- or bifunctional poly(ethylene oxide) (PEO) derivatives, respectively, into PDMS during rubber formation using classic room temperature vulcanization chemistry. Characterization of the films by water contact-angle…