Materials Literature
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The design and tunability of tissue scaffolds, such as pore size and geometry, is crucial to the success of an engineered tissue replacement. Moreover, the mechanical nature of a tissue scaffold should display properties similar to the tissue of interest; therefore, tunability of the foam mechanical properties is desi…
This paper introduces the principle and characteristic of extrusion tapping of internal thread, presents the simplified mechanical model of extrusion tapping firstly. Then generalizes the key technology of extrusion tapping and their influencing law on tapping torque and thread forming quality, such as extrusion tap t…
1,4,8,11,15,18,22,25-hexahexylphthalocyanine was studied on the carrier mobility characteristics by a Time-Of-Flight (TOF) technique. The compound exhibits an ambipolar nature of charge transport and the carrier mobilities for hole and electron were determined to be 0.3 and 0.2 cm2 V−1 s−1 in the hexagonal disordered…
Abstract We report on the deposition of nanocrystalline diamond films onto protected aluminum/pyrex glass mirrors in focused or linear antenna microwave plasma enhanced chemical vapour deposition systems. Quality of the diamond films is characterized by Raman spectroscopy, scanning electron microscopy and optical imag…
5,10,15,20-Tetraaryl-21-vacataporphyrin (1), an annulene-porphyrin hybrid containing a butadiene fragment in the macrocycle perimeter, gives paramagnetic iron(II) complexes 2. The porphyrin 1 is devoid of one donor atom of the coordination core; hence, metal ion is bound in the macrocyclic cavity by only three pyrroli…
Abstract The syntheses and crystal structures of two new dimethyl diselenide–iodine adducts are described as well as the synthesis and crystal structure of the first diorgano disulfide–nitrosonium adduct. The reaction of the NO + cation with R 2 S 2 (R = Me, Et, neo ‐Pent, H, CN, CF 3 , 4‐pyridyl, 2‐Prop, Ph, Ad) has…
Solution behaviors and adsorption characteristics of sodium lignosulfonate (NaLS) were studied under different pH conditions. The changes of Mw and particle size of NaSL with solution pH were detected by laser light scattering (LLS). Film thickness was determined with a spectroscopic ellipsometer, and surface roughnes…
Immobilized noble metal nanoparticles are being explored for a variety of applications where control over the particle size and separation distance on the substrate is important for performance. A proof of concept is presented that Au nanoparticles can be deposited in a single step with control over the size and separ…
Polyoxometallates (POMs) are desirable in materials applications ranging from uses as catalysts in selective oxidation reactions to molecular-like building blocks for the preparation of new extended solids. With the use of an unprecedented approach involving high temperature, molten salt methods, a fascinating series…
An enhanced adiabatic bond charge model has been employed to study the lattice dynamics of phononic metamaterials based on group-IV and group--III-V semiconductors. Using the full phonon spectrum and a realistic Brillouin zone summation method, we have developed theories of phonon scattering rates from interface forma…
The design, synthesis and evaluation of eight contrast agents for metabotropic glutamate receptors is reported. Each of the contrast agents contains a selective mGluR5 binding moiety linked to a ‘DOTA’-derived gadolinium complex. The potential of these systems was evaluated in vitro for application as responsive MR im…
Abstract A facile route is presented for the fabrication of spherical PbTiO 3 (PTO) nanodot arrays on platinized silicon substrates using PbO vapor phase reaction sputtering on micellar monolayer films of polystyrene‐ block ‐poly(ethylene oxide) (PS‐ b ‐PEO) loaded with TiO 2 sol–gel precursor. Short exposure to PbO t…
We investigated the response of symmetric poly(styrene-block-4vinylpyridine) P(S-b-4VP) diblock copolymer micelles to surface fields of variable strength at free surfaces and substrate interfaces when the micelles as spun were subjected to solvent annealing. Free surface interactions were controlled with solvent annea…
In this perspective paper, we discuss possible ways to control magnetism using electric-field. Special focus is given to interface/surface magnetoelectric effects, which will become important when the thickness of magnetic films drops to nanoscale.We show that significantly different mechanisms may lead to interface/s…
Luffa fiber is a renewable resource material with low cost and that contributes to a healthier ecosystem by its biodegradability. Its natural structure can be considered as a naturally occurring composite consisting mainly of cellulose fibrils imbedded in a lignin matrix. Surface pretreatment is necessary to maximize…
Although the metal/semiconductor separation of single-wall carbon nanotubes (SWCNTs) using an agarose gel column has been successfully developed, little is known about the mechanism of the separation. In this study, we examined the agarose concentration dependence of the separation using this column. The amount of SWC…
Gas-phase geometry optimization of NLO-active molecules is one of the standard approaches in the first principle computational methodology, whereas the important role of the environment is usually not considered during the evaluation of structural parameters. With a wide variety of environmentally influenced models in…
This study investigated the effects of organoclay platelet contents (0, 3 and 5 wt%) and polypropylene type (virgin and recycled) on the mechanical properties of polypropylene/wood flour composites. Composite samples were made by melt compounding and consequent injection moulding. The tensile, flexural and impact prop…
Cellulose/chitosan homogeneous solutions were prepared in 1-ethyl-3-methylimidazolium acetate ([EMIM]Ac) ionic liquid. Steady and oscillatory dynamic rheological properties were studied with a Haake Mars-ΙΙΙ rotational rheometer. Rheological results show that cellulose/chitosan [EMIM]Ac solutions are a pseudoplastic l…
We describe two new techniques of preparing liquid crystal samples and discuss their potential for novel research and applications. Very thin polymer composite fibers functionalized by a liquid crystalline core are realized by coaxial electrospinning of a polymer solution surrounding the liquid crystal during the spin…