Materials Literature
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Ternary polypropylene/multiwalled carbon nanotube/montmorillonite (PP/MWNT/MMT) nanocomposites were prepared by melt compounding of a ball-milled MWNT and MMT mixture in a Haake mixer at a screw rotation rate of 200 r/min. The electrical conducting behavior of such hybrid composites was examined. The results showed th…
Abstract Biocompatible hyperbranched polyglycerol (HPG) has been covalently grafted from the surfaces of multiwalled carbon nanotubes (MWNTs) by the “grafting from” method based on in situ anionic ring‐opening polymerization. The macroinitiator of hydroxyl‐functionalized MWNTs (MWNT‐OH) with hydroxyl density of 1.39 m…
Novel geometrical architectures of hybrid nanoparticle–protein complexes are generated by chemically synthesizing monodisperse metal nanoparticles in situ in the presence of a stable, stress-related protein. The catalytic activity of the protein–particle hybrids is examined for the reduction of 4-nitrophenol, providin…
New perspectives on disorder in photonic materials are opened up by polyhedral oligomeric silsesquioxanes (POSS) dispersed at a molecular level in dye-doped liquid and solid solutions. The optical homogeneity of these hybrid materials assures a coherent laser action, which is significantly enhanced by the stimulated e…
The flexural, compressive properties of bamboo/glass fiber-reinforced epoxy hybrid composites were studied. The effect of alkali treatment of the bamboo fibers on these properties was also studied. It was observed that both flexural and compressive properties of the hybrid composite increase with glass fiber content.…
Free-standing epitaxial NiMnGa films are used to demonstrate a novel thermal actuation mode. To avoid the high magnetostatic stray-field energy, the easy axis of the martensitic variants is aligned preferentially in-plane. This results in a maximum strain of up to 1.1% without the need for training or an external magn…
We report the development of an MCM-41 mesoporous support that is functionalised with saccharides at the pore outlets and contains the dye [Ru(bipy)(3)](2+) in the pores (solid S1; bipy = 2,2'-bipyridyl). For this hybrid system, the inhibition of mass transport of the dye from the pore voids to the bulk solution in th…
Surface enhanced Raman scattering (SERS) of nanoporous gold (NPG) with various nanopore sizes was investigated at temperatures ranging from 80 to 300 K using rhodamine 6G as probe molecules. It was found that the SERS intensity dramatically increases as temperature and nanopore size decrease. Theoretical analysis indi…
We have characterized mechanical properties of ultrananocrystalline diamond (UNCD) thin films grown using the hot filament chemical vapor deposition (HFCVD) technique at $680\text{ }\ifmmode^\circ\else\textdegree\fi{}\text{C}$, significantly lower than the conventional growth temperature of $\ensuremath{\sim}800\text{…
Low-temperature transport spectroscopy measurements on a suspended few-hole carbon nanotube quantum dot are presented, showing a gate-dependent harmonic excitation spectrum which, strikingly, occurs in the Coulomb-blockade regime. The quantized excitation energy corresponds to the scale expected for longitudinal vibra…
Zirconia $({\text{ZrO}}_{2})$ is a most important substance in materials science and technology due to its wide-ranging applications. Accordingly, there have been several investigations of its observed crystalline polymorphs. However, a systematic analysis of the elastic properties of the ${\text{ZrO}}_{2}$ structures…
This article reviews the current status of self-assembling liquid crystalline polymers comprising cholesterol. This article will focus on synthesis, structure-property relationships and strategies to direct ordering and packing of meso- and nanostructures of cholesterol polymers in the neat- or melt state and in solut…
We report on the adsorption of CdSe/ZnS quantum dots and its effects on algal photosynthesis. A logarithmic trend was established for the adsorption process using UV−vis spectrophotometry, with Freundlich constants determined as k = 0.588 ppm 1− n and n = 0.629. Both our CO 2 depletion and O 2 production assays showed…
Dissipative particle dynamics (DPD) is now a well-established method for simulating soft matter systems. However, its applicability was recently questioned because some investigations showed an upper coarse-graining limit that would prevent the applicability of the method to the whole mesoscopic range. This article ai…
Graphene transistors are made by transferring a thin graphene film grown on Ni onto an insulating SiO2substrate. The properties and integration of these graphene-on-insulator transistors are presented and compared to the characteristics of devices made from graphitized SiC and exfoliated graphene flakes.
The present study focuses on short flax fiber, as well as long flax fiber-reinforced polypropylene (flax/PP) composites, manufactured by the injection molding method. Compounding of flax with two different grades of PP (with and without maleic anhydride (MA-PP) grafting) is carried out by four methods: kneading proces…
Spontaneous and rapid growth of tubes occurs from crystals of a polyoxometalate upon addition of an aqueous solution containing an organic cation. Application of a potential through a multielectrode system allows the growth direction of tubes through 90 degrees or 180 degrees, and direct increase or decrease in the ca…
Photopolymerization of commercial photoresist SU-8 assisted by plasmonic near-field enhancement in nanogaps separating gold nanoblocks was investigated. Photopolymerization rates enhanced by orders of magnitude were found in gold nanoblock structures with nanogaps narrower than 10 nm. The mechanisms responsible for lo…
A line-patterned breath figure film is achieved using a photo-crosslinkable small molecule through a novel dual-patterning process that combines a breath-figure technique (bottom-up) and photolithography (top-down). The organogelator molecules form honeycomb structures, organizing into supramolecular fibers similar to…
A POM to remember: Hexanuclear Fe(III) polyoxometalate (POM) single-molecule magnets (see structure) can be noncovalently assembled on the surface of single-wall carbon nanotubes. Complementary characterization techniques (see TEM image and magnetic hysteresis loops) demonstrate the integrity and bistability of the in…