Materials Literature
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The dynamics of the annihilation of a vortex-antivortex pair is investigated. The pair is activated magnetically during the run of a simulated hysteresis loop on a square mesoscopic superconducting cylinder with an antidot inserted at its center. We study the nucleation of vortices and antivortices by first increasing…
The boundary value problem of general three-dimensional asymmetrical (momental) theory of elasticity for a thin shell is considered. It is assumed that the general stress-deformed state has resulted from interior stress-deformed state and boundary layers. An asymptotic method of integration of three-dimensional bounda…
In the title complex, [Fe(C(10)H(6)N(3)O(4))(2)(H(2)O)(2)], the Fe(II) atom is located on an inversion centre and is trans-coordinated by two N,O-bidentate 5-carb-oxy-2-(3-pyrid-yl)-1H-imidazole-4-carb-oxy-l-ate ligands and two water mol-ecules, defining a distorted octa-hedral environment. A two-dimensional network o…
We have investigated the temperature-dependent behavior of thiolated azobenzene molecules on Au(111) using scanning tunneling microscopy. The addition of a thiol functional group to azobenzene molecules leads to increased surface anchoring of single azobenzene molecules to gold. Thiolated azobenzene shows diverse surf…
Using integral equation theory in the reference hypernetted chain (RHNC) approximation we investigate the structure and phase behavior of a monolayer of dipolar spheres. The dipole orientations of the particles fluctuate within the plane. The resulting angle dependence of the correlation functions is treated via an ex…
Abstract The reaction of an unsymmetrical ligand, namely 1,2,4‐benzenetricarboxylic acid (H3btc), under pH‐controlled hydrothermal conditions with a manganese salt leads to the three‐dimensional coordination polymer {Mn(H2O)[C6H3(CO2)2(CO2H)]·(H2O)}n (FJU‐2). Potassium hydroxide is used as a control agent to modulate…
Synthesis of plakortethers F and G has been performed by taking advantage of the symmetry in the structure. The structures of the prepared compounds have been confirmed by COSY, 1D NOE, and chemical transformation studies. The synthetic plakortether F was found to match the natural product by all physical data. The sy…
The self-assembly of linear poly(ethylene oxide)-b-poly(glycerol monomethacrylate)-b-poly[2-(diisopropylamino)ethyl methacrylate] (PEO-b-PG2MA-b-PDPA) triblock copolymer into pH-responsive cross-linkable nanostructures in both organic and aqueous media is reported. Light scattering (LS), electron transmission microsco…
BACKGROUND: Polyethyleneimine (PEI), a cationic polymer, is one of the successful and widely used vectors for non-viral gene transfection in vitro. However, its in vivo application was greatly limited due to its high cytotoxicity and short duration of gene expression. To improve its biocompatibility and transfection e…
A semi-continuous method for recovering waste sertraline isomers from a diastereomeric crystallisation process is described in which the mother liquors from a highly selective mandelic acid resolution for the (1 S,4 S ) isomer are treated sequentially with SCRAM, an iridium-based chiral amine racemisation catalyst, an…
Household assistance robots are expected to become more prominent in the future and will require inherently safe design. Conducting polymer-based artificial muscle actuators are one potential option for achieving this safety, as they are flexible, lightweight and can be driven using low input voltages, unlike electrom…
Despite the practical importance of polymer melt instabilities, there is still a lack of experiments able to characterize in situ the origin and behavior of these phenomena. In this context, a new set-up consisting of high sensitive pressure transducers located inside a slit-die and an advanced mathematical framework…
Solvent driven molecular shuttles containing a pyrene-connected macrocycle and an intramolecular charge-transfer (ICT) chromophore stopper are constructed. In one of the molecular shuttles, a long C-10 chain is introduced in the thread to separate the peptide station and the ICT stopper. The macrocycle stays in the pe…
Abstract CD and NMR spectroscopic evidence of cooperative binding between an α‐halogen atom and a carboxamide group with a zinc porphyrin leads to an unprecedented conformation for the determination of the absolute stereochemistry of α‐haloamides (α‐halocarboxylic acids derivatized with 1,4‐phenylenediamine) through t…
The development of instabilities under the joint action of the van der Waals forces and Marangoni stresses in a two-layer film in the presence of an inclined temperature gradient is investigated. The problem is solved by means of a linear stability theory and nonlinear simulations. It has been found that for sufficien…
A series of novel asymmetrical fused compounds containing the backbone of fluorene[2,3-b]benzo[d]thiophene (FBT) were effectively synthesized and fully characterized. Single-crystal X-ray studies demonstrated that the length of the substituent side chains greatly affects the solid-state packing of the obtained fused c…
BACKGROUND: Since the function of a protein is largely dictated by its three dimensional configuration, determining a protein's structure is of fundamental importance to biology. Here we report on a novel approach to determining the one dimensional secondary structure of proteins (distinguishing alpha-helices, beta-st…
Charge transport in organic semiconductors is strongly dependent on their molecular packing modes in the solid state. Therefore, understanding the relationship between molecular packing and charge transport is imperative, both experimentally and theoretically. However, so far, the fundamental effects of solid-state pa…
Loops connect regular secondary structures. In many instances, they are known to play important biological roles. Analysis and prediction of loop conformations depend directly on the definition of repetitive structures. Nonetheless, the secondary structure assignment methods (SSAMs) often lead to divergent assignments…
We have performed bulk-sensitive measurements of the temperature dependence of the Yb valence in the hexagonal ${\text{YbCu}}_{5\ensuremath{-}x}{\text{Al}}_{x}\text{ }(0\ensuremath{\le}x\ensuremath{\le}2)$ and cubic ${\text{YbCu}}_{5}$ Kondo compounds using x-ray absorption spectroscopy in the partial fluorescence yie…