Materials Literature
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A series of planar Ni(II) dithiolenes derived from maleonitriledithiole (mnt), benzene-1,2-dithiole (bdt) and 1-toluene-3,4-dithiole (tdt) with bidentate N,N-ligands (bpy = 2,2′-bipyridine; phen = 1,10-phenanthroline, nphen = 5-nitro-1,10-phenanthroline) of the [Ni(N,N)(dithiol)] type have been synthesized. The compou…
To Be or not to Be: Be binds strongly to the three-dentate ligand 2,6-bis(2-hydroxyphenyl)pyridine in a 1:1 ratio with no bridging phenolates (see structure; Be green, C gray, H white, O red, N blue). As Be binds and displaces the strong hydrogen bonds, the ligand fluoresces. The fluorescence is very specific for Be a…
We study spatially isolated, individual gold nanorods placed at a planar interface between two dielectric media using confocal interference scattering microscopy in combination with higher order laser modes. Approaching refractive index matching conditions, we observe that the elastic scattering patterns of individual…
Abstract The Hg‐substituted type‐I clathrates A 8 Hg 3+ x Ge 43– x (A = K, Rb) were obtained by solid‐state reactions from the corresponding Zintl phases A 4 Ge 9 and Hg or HgO. The crystal structures of the compounds were determined by single‐crystal and powder X‐ray diffraction methods. They crystallize in the space…
In a previous work, the authors have presented a comprehensive procedure for the direct characterization of single piezoelectric ceramic fibers in terms of butterfly and polarization loops and blocking force. The ability to investigate single fibers is relevant for optimizing their manufacturing processes, for quality…
We extend our recent work on phase-field model for vesicles [D. Jamet and C. Misbah, Phys. Rev. E 76, 051907 (2007)]-where only the membrane local incompressibility was treated-to the situation where the bending forces and spontaneous curvature are included. We show how the general phase-field equations can be derived…
AM50 magnesium alloy is treated by PEO process using four different electrolytes which are combination of K 3 PO 4 and Na 3 PO 4 plus two different hydroxides, i.e. KOH and NaOH. Basic properties of the electrolyte such as pH, conductivity and breakdown voltage were measured. Moreover, coatings were characterised by s…
In this paper, we investigate the transport properties of field-effect transistors (FETs) based on various kinds of fullerene (C(60), C(70), and C(84)) peapods. The encapsulation of various fullerenes inside single-walled carbon nanotubes (SWNTs) is characterized by TEM and Raman spectroscopy. Our results indicate tha…
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…