Materials Literature
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S. SATO, W.H.C.F. KOOISTRA ,T . W ATANABE ,S . M ATSUMOTO & L.K. MEDLIN. 2008. A new araphid diatom genus Psammoneis gen. nov. (Plagiogrammaceae, Bacillariophyta) with three new species based on SSU and LSU rDNA sequence data and morphology. Phycologia 47: 510–528. DOI: 10.2216/08-04.1 Five strains of a hitherto undes…
Liquid metal embrittlement (LME) in the Al–Ga system is studied using molecular dynamics simulations. Crack tip opening loads are exerted on symmetric tilt Al bicrystals in the presence of liquid Ga. In general, the speed of crack propagation increases in the presence of Ga. However, there is significant variation in…
Abstract In this study, a novel and effective suspension polymerization has been employed to prepare functional magnetic porous SrFe12O19/P(St-DVB-MAA) microspheres in the presence of bilayer surfactants (sodium dodecyl benzene sulfonate (SDBS) and oleic acid (OA)) coated on micro-size magnetic SrFe12O19. This was ach…
Zinc hot dip galvanising is one of the most effective methods for the corrosion protection of ferrous materials. However, although its efficiency is undisputable, the exact growth mechanism of these coatings is still under question. In the present work, the diffusivity of liquid zinc in carbon steels was measured with…
Using pyridine-2,4,6-tricarboxylic acid (H3ptc) and 2,2-bipyridine (2,2-bipy), a tetranuclear copper(II) compound [Cu4(2,2-bipy)4(ptc)2(H2O)2(OH)2] · 12H2O (1) has been isolated under hydrothermal conditions. Variable temperature magnetic susceptibility of 1 from 2–300 K indicates anti-ferromagnetic interactions. The…
Abstract A diblcok copolymer monomethoxy poly (ethyleneglycol)‐ block ‐poly( L ‐lactide‐ co ‐2‐methyl‐2‐carboxyl‐propylene carbonate) (MPEG‐ b ‐P(LA‐ co ‐MCC)) was obtained by copolymerization of L ‐lactide (LA) and 2‐methyl‐2‐benzoxycarbonyl‐propylene carbonate (MBC) and subsequent catalytic hydrogenation. The pendan…
Poly(acrylonitrile) (PAN)-based zwitterionic membranes, composed of PAN and poly( N, N-dimethyl- N-methacryloxyethyl- N-(3-sulfopropyl) copolymer, are electrolyte-sensitive smart membranes. The hydrophilicity was increased and protein adsorption was remarkably decreased for the membranes in response to environmental s…
We introduce a method to manipulate and organize ferromagnetic nanowires using the elastic forces imposed on nanowires suspended in nematic liquid crystals via patterned variations in the nematic director. As a test case for the technique, we investigate nematic environments consisting of stripes of alternating direct…
Abstract In the present research, the thermal stability and fire properties of polypropylene (PP) have been improved through direct melt intercalation of PP, organically modified montmorillonite (OMMT), calcium carbonate (CaCO 3 ) nanoparticles, and conventional flame retardants, i.e., decabromodiphenyl oxide (DB) and…
Transient expression levels, vector dissemination and toxicities associated with adenoviral vectors have prompted the usage of matrices for localized and controlled gene delivery. Two recombinant silk-elastinlike protein polymer analogues, SELP-47K and SELP-415K, consisting of different lengths and ratios of silk and…
The time-resolved spectra of single-bubble sonoluminescence (SBSL) in sulfuric acid have been observed with a streak camera after a spectrograph. The spectral center evolves from infrared to ultraviolet gradually within a SBSL duration, which corresponds to an increase of temperature. The peak temperature within one s…
Homoaconitase enzymes catalyze hydrolyase reactions in the alpha-aminoadipate pathway for lysine biosynthesis or the 2-oxosuberate pathway for methanogenic coenzyme B biosynthesis. Despite the homology of this iron-sulfur protein to aconitase, previously studied homoaconitases catalyze only the hydration of cis-homoac…
With the use of a new kit from Qiagen to amplify total genome quantity, DNA was bulked up from two diatoms that are difficult to grow (Ardissonea and Climacosphenia), and the nuclear SSU rRNA gene was successfully amplified. Results of Bayesian analyses showed that these diatoms are sister to Toxarium and belong to th…
The interaction of generation 5 (G5) and 7 (G7) poly(amidoamine) (PAMAM) dendrimers with mica-supported Survanta bilayers is studied with atomic force microscopy (AFM). In these experiments, Survanta forms distinct gel and fluid domains with differing lipid composition. Nanoscale defects are induced by the PAMAM dendr…
Growth studies of ZnO nanowires nucleated from predefined Au particles on planar substrates or on nanowire backbones show that Au particles are observed either at the root for planar substrates or the tip for wires nucleated from nanowire backbones (see image). In contrast to the well-accepted cases of the vapor–solid…
The use of zinc thin films deposited onto glass supports for surface plasmon coupled fluorescence (SPCF) over a broad 200 nm wavelength range is demonstrated. Fresnel calculations performed in the ultraviolet and visible spectral range are predicted to generate surface plasmon modes in 30 nm zinc thin films. In this s…
New salt-inclusion lanthanide silicates, [K 9F 2][Ln 3Si 12O 32] (Ln = Sm, Eu, Gd), have been synthesized using a KF-MoO 3 flux, and structurally characterized by single-crystal and powder X-ray diffraction. The structures of these three isostructural compounds consist of open-branched funfer silicate single layers wi…
In this paper, we describe methods for manipulating the morphology of side-chain liquid crystalline block copolymers through variations in the liquid crystalline content. By systematically controlling the covalent attachment of side chain liquid crystals to a block copolymer (BCP) backbone, the morphology of both the…
Novel diblock copolymers of poly(ε-caprolactone) and polyphosphoester bearing functional hydroxyl pendant groups, denoted as PCL- b -PHEP, were synthesized through ring-opening polymerization of functionalized cyclic phosphoester monomer using hydroxyl end-capped poly(ε-caprolactone) and Sn(Oct) 2 as macroinitiator an…
Anionic surface-initiated polymerization of ethylene oxide and styrene has been performed using multiwalled carbon nanotubes (MWNTs) functionalized with anionic initiators. The surface of MWNTs was modified via covalent attachment of precursor anions such as 4-hydroxyethyl benzocyclobutene (BCB-EO) and 1-benzocyclobut…