Materials Literature
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The mechanical response of particle-laden fluid interfaces is determined by measuring the internal pressures of particle-coated drops as a function of the drop volume. The particle monolayers undergoing compression-expansion cycles exhibit three distinct states: fluid state, jammed state, and buckled state. The P-V cu…
A series of pentamethylcyclopentadienyl bis(phosphinimino)methanide complexes of yttrium and the lanthanides, [{CH(PPh 2 NSiMe 3 ) 2 }Ln(η 5 -C 5 Me 5 )Cl] (Ln = Y ( 1a ), Sm ( 1b ), Yb ( 1c )), were prepared by two different synthetic approaches. The compounds can be obtained either from [{CH(PPh 2 NSiMe 3 ) 2 }LnCl…
The electrocatalytic reduction of oxygen has been studied on multiwalled carbon nanotube (MWCNT) modified glassy carbon (GC) electrodes in solution using the rotating disk electrode technique. The oxygen reduction behavior of oxidatively pretreated and untreated MWCNT modified GC electrodes was compared. The results o…
In this paper the description of the dielectric and ferroelectric properties of BaTiO3 single crystals using the Landau phenomenological thermodynamic potential was addressed. Our results suggest that when using the sixth-power free energy expansion of the thermodynamic potential, remarkably different values of the fo…
We demonstrated a highly efficient, polarization-independent and electrically tunable Fresnel lens based on dye-doped liquid crystal using double-side photoalignment technique. The maximum diffraction efficiency reaches 37%, which approaches the theoretical limit ~41%. Such a lens functions as a half-wave plate, and t…
Novel tree-like alumina nanopores were reproducibly obtained in non-steady-state anodization conditions by exponential decrease of anodization potential. The mechanism of pore formation was thought to be due to a combination of electrical treeing and mechanic stress in the growth process. Furthermore, some interesting…
Some tetra-alkylpyridinium octamolybdate catalysts were found to be recyclable and efficient for selective oxidation of benzyl alcohol with aqueous hydrogen peroxide as oxidant under simple reaction conditions. Organic solvent-free direct selective oxidation of benzyl alcohol to benzaldehyde with aqueous 15% hydrogen…
The extracellular matrix (ECM) provides a natural network of intricate nanofibres that supports cells and presents a multidimensional map that guides cellular behaviour. Three dimensional nanofibre constructs offer the ability to mimic the topographical environment of the ECM. Here we synthesise nanostructured constru…
The complex [Mn(6)O(2)(Et-sao)(6)(O(2)C(11)H(15))(2)(EtOH)(6)] has U(eff) = 80 K.
Many potential applications in nanotechnology envisage the use of better-dispersed and functionalized preparations of carbon nanotubes. Single-walled carbon nanotubes (SWCNTs) were treated with 1:1 mixtures of concentrated nitric and sulfuric acids for 3 min in a microwave oven under 20 psi pressure followed by extens…
Crystal orientation-ordered ZnS nanobelt quasi-arrays were fabricated using a non-catalytic and template-free thermal evaporation process; field-emission measurements show that these novel arrays are decent field emitters possessing a current density more than 20 times higher than that of randomly-oriented ZnS nanobel…
A new green phosphor, -activated , was developed, which shows green luminescence with a peak wavelength of under excitation with blue light. -activated can be used as a material for color conversion of white-light-emitting diodes (LEDs), which consist of a blue LED, a green phosphor, and a red phosphor, because the lu…
Abstract Results of the comprehensive experimental and computational phase studies of the systems ZrO 2 -REO 1.5 (RE = La, Nd, Sm, Gd, Dy, Yb) are summarized. Various experimental techniques, X-ray diffraction (XRD), scanning electron microscopy (SEM), electron probe microanalysis (EPMA), transmission electron microsc…
Thermal and dynamic mechanical properties of kenaf natural fiber reinforced polypropylene (PP) biocomposites were examined to compare the effects of natural fiber treatment by electron beam irradiation (EBI) and alkalization. The alpha cellulose contents, the functional groups on the surfaces and the thermal stability…
The ability of gold(I) thiolates to self-assemble into polymeric species has been exploited to create a pH responsive supramolecular hydrogel based on glutathione.
Two approaches to control microbiologically influenced corrosion (MIC) have been developed that do not require the use of biocides. These strategies include the following: i) use of biofilms to inhibit or prevent corrosion, and ii) manipulation (removal or addition) of an electron acceptor, (e.g. oxygen, sulphate or n…
Cadmium complexes of N,N-diethyl-N′-benzoylthiourea and N,N-diethyl-N′-benzoylselenourea have been used as single-source precursors for the synthesis of HDA capped CdS and CdSe nanoparticles in a predominantly cubic phase, respectively. Both types of particles show quantum confinement effects and close to band edge lu…
Semiconductor nanocrystals (quantum dots) have been increasingly employed in measuring the dynamic behavior of biomacromolecules using fluorescence correlation spectroscopy. This poses a challenge, because quantum dots display their own dynamic behavior in the form of intermittent photoluminescence, also known as blin…
Clusters can be viewed as solids at the nano-scale, yet molecular cluster chemistry and solid state chemistry have traditionally been considered as separate topics. This treatment has made it conceptually difficult to appreciate commonalities of structure and bonding between the two. Using analogous models, this is th…
Cellobiohydrolases are the most effective single component of fungal cellulase systems; however, their molecular mode of action on cellulose is not well understood. These enzymes act to detach and hydrolyze cellodextrin chains from crystalline cellulose in a processive manner, and the carbohydrate-binding module (CBM)…