Materials Literature
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Recent experiments have suggested a possibility of room-temperature ferromagnetism in graphite-like materials. We analyzed multiple spin states in asymmetric graphene molecules to find the mechanism responsible for ferromagnetism. First principle density functional theory was applied to calculate ground state spin den…
Large-scale uniform γ-AlOOH micro/nanoarchitectures (ellipsoidal flower-like, rotor-like, carambola-like and leaf-like) were synthesized through a facile one-step solution phase route. The products were examined by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectra, scanning electron microscopy (SEM)…
In the present study, we investigated the effect of collagen and collagen peptides from bluefin tuna abdominal skin on cancer cells. Collagens were extracted from bluefin tuna (Thunnus orientails) abdominal, mackerel, and carp skin. The calf and salmon collagen were used reagent grade as a standard samples. The main p…
Mesoporous, mixed-valence tungsten oxides were synthesized by a straightforward, nonhydrolytic sol–gel method utilizing 1-butanol/tert-butanol mixtures as the gelling solvent. Composition of the alcohol mixture influences the mesoporous characteristics of final product. By tuning synthesis and processing conditions sp…
One-step facile synthesis of monoporous polymer microspheres via microwave-controlled dispersion polymerization is introduced. This template-free method employing the dispersion polymerization of styrene under microwave irradiation induces directly the formation of uniform monoporous polymer microspheres, with control…
We describe the synthesis of homo-, block, and clickable copolypeptide brushes from low surface area substrates using nickel-mediated surface-initiated polymerization of α-amino N-carboxyanhydrides.
The influence of the grafting mode of a borohydride lanthanum complex on a silica surface on the energetic (kinetic and thermodynamic parameters) of the Ring Opening Polymerization (ROP) reaction of ε-caprolactone has been studied in the framework of density functional theory (DFT). For all considered grafted catalyst…
A novel hydrothermal dephosphorylation route for the synthesis of ultrasmall nucleotide-coated superparamagnetic γ-Fe2O3 nanoparticles (∼5 nm) has been demonstrated. The synthesized γ-Fe2O3 nanoparticles show excellent thermal stability, water dispersion and biocompatibility, allowing possible applications for in vivo…
Core loss data are usually provided in the form of tables or curves of total loss versus flux density or frequency for electrical machine designers. These tables or curves can be used to extract the loss coefficients of the core loss formulas because accurate calculations of the coefficients have an important issue in…
Titania-supported gold catalysts were prepared via the so-called deposition–precipitation method, using either urea or ammonia as the precipitation agent and evaluated in the catalytic wet air oxidation of succinic acid (a model pollutant often found in the degradation pathway of phenolic compounds) at 463 K under 0.7…
A new class of ABC π-conjugated rod–coil–coil triblock copolymers of poly(diethylhexyloxy-p-phenylene vinylene)-b-poly (2-vinyl pyridine)-b-polystyrene (PPV-PVP-PS) was synthesized and its self-assembly behavior was explored. Three different triblock copolymers of PPV-PVP-PS1, PPV-PVP-PS2, and PPV-PVP-PS3, each with P…
Slow diffusion in a H-tube at room temperature of a methanolic solution of [VO(acac)(2)] (Hacac = acetylacetone) and 1,10-phenanthroline (phen) or 2,2'-bipyridine (bipy) into an aqueous solution of sodium pyrophosphate (Na(4)P(2)O(7)) resulted in the serendipitous formation of X-ray quality crystals of mixed-valent, h…
This work presents an important example of novel hybrid vesicles with pH-triggered transmembrane channels prepared by co-assembly of poly(acrylic acid)-g-poly(monomethoxy ethylene glycol) (PAAc-g-mPEG) with a cationic lipid, didodecyldimethylammonium bromide (DDAB), via electrostatic interaction for effective doxorubi…
Yolk-shell composites with an Fe(3)O(4)/silica hybrid shell and a polymer core are prepared via a facile one-pot and self-template process. Thicknesses of the inorganic shell and interior space of the composites are well controlled by tuning the ternary phase separations.
The ability of ω-imidazolium functionalized poly(L-lactide) (ImPLLA) chains to improve the CNT dispersion within the PLLA matrix was demonstrated in bulk and at elevated temperatures using melt-processing techniques. This approach brings new supramolecular tools to the formation of CNT-based biomaterials derived from…
Polycrystalline diamond films exhibiting (100) oriented surfaces have been subject to a low pressure hydrogen plasma for durations up to 20 h. The topography of spatially defined 20 × 20 μm areas of the samples were imaged by atomic force microscopy at intervals during the plasma exposure. The mean surface roughness o…
In the presence of H2S, metallic materials, such as carbon and low alloy steels, may suffer hydrogen damage and hydrogen embrittlement. In this paper the influence of hydrogen and low temperature on mechanical properties of two pipeline materials, X65 micro-alloyed and F22 low alloy steels, is studied. An electrochemi…
The steadily growth of Wood Plastic Composite (WPC) in exterior applications resulted a need to understand their durability. In Malaysia, the durability of WPC is not only affected by mold and decay fungi as biodegradation agents but also due the termites attack. Therefore, this study was carried out to investigate th…
Novel composites of highly ordered and stable biphenyl-bridged periodic mesoporous organosilica (PMO) materials confined within the pores of anodic alumina membranes (AAM) were successfully synthesized by evaporation-induced self-assembly (EISA). 4,4′-Bis(triethoxysilyl)biphenyl (BTEBP) was used as a precursor in comb…
The light-controlled fluorescence molecular switch was prepared with Au nanoclusters and thiolated spiropyran dyes. Its fluorescence can be reversibly modulated using UV/Visible light due to fluorescence resonance energy transfer (FRET) from the Au NCs to the open-ring state merocyanine of the spiropyran molecules.