Materials Literature
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A new container composed of an inner gel core and an outer protein shell has been prepared by sonicating oil in an aqueous protein solution. Hydrophobic drugs can be loaded into the containers and released by thermal trigger. In this paper, we attempted to discover the release mechanism of the protein containers by me…
A facile and mild macrolactonization reaction of ω-hydroxy acids was developed based on the transesterification of benzotriazole esters. Treatment of ω-hydroxy acids with 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and 1-hydroxy benzotriazole (HOBT) in chloroform provided macrolactones in excellent yields. Th…
The ligand 2,4,6-tris(dimethoxyphosphonate)-1,3,5-triazine L has been synthesized and its single crystal X-ray structure determined. The occurrence of PO⋯π intermolecular interactions, suggested by the short PO⋯triazine distances of 3.16–3.35 Å, is observed. The electrochemical reduction of the ligand shows its electr…
We present in situ experimental observations of fullerenes seamlessly fusing to single-walled carbon nanotubes. The morphing-entry of a fullerene to the interior of a nanotube is also captured. The confined (1D) motion of the newly-encapsulated fullerene within its host attests to the actual change from the exterior t…
We present a method to reconstruct a three-dimensional protein structure from an atomic pair distribution function derived from the scattering intensity profile from SAXS data by flexibly fitting known x-ray structures. This method uses a linear combination of low-frequency normal modes from an elastic network descrip…
Investigations into the extent of structuring present in phosphonium based ionic liquids (ILs) have been carried out using photochromic molecular probes. Three spiropyran derivatives containing hydroxyl (BSP-1), carboxylic acid (BSP-2) and aliphatic chain (C(14)H(29)) (BSP-3) functional groups have been analysed in a…
Solid oxide fuel cells with the conventional configuration of Ni–ytttria-stabilized zirconia ( Ni-YSZ ) | YSZ | ( La , Sr ) MnO 3 ± δ ( LSM ) have been reported to exhibit performance improvement in the initial discharge operation, which is attributed to the activation of LSM. In this study, the time course of potenti…
Ni–Fe–Ga-based alloys form a new class of Ferromagnetic Shape Memory Alloys. The problem of brittleness of the Ni-Mn-Gabased alloys can largely be overcome in case of Ni–Fe–Ga-based ones by introducing a disordered fcc γ -phase. The current study explores thermo-mechanical processing of this alloy using an off-stoichi…
Using a generalized quasi-continuum method, we characterize the post-buckling morphologies and energetics of thick multi-walled carbon nanotubes (MWCNTs) under uniaxial compression. Our simulations identify for the first time evolving post-buckling morphologies, ranging from asymmetric periodic rippling to a helical d…
Since the association between nephrogenic systemic fibrosis (NSF) and gadolinium contrast agents (Gd-CAs) was suggested in 2006, several experimental studies have been published to elucidate the role of these agents in the pathogenesis of NSF. Low stability Gd-CAs have a stimulant effect on human skin and fibroblasts…
A detailed study of irreversibility in magnetization, spin-wave excitations, approach-to-saturation and magnetocaloric effect in nanocrystalline Gd revealed the following. Intra-grain and the interfacial (grain boundaries) magnetic anisotropies play a decisive role in causing irreversibility in magnetization and in co…
Highly Transparent, Low Resistance, and Cost-Efficient Nb : TiO2 / Ag / Nb : TiO2 Multilayer Electrode Prepared at Room Temperature Using Black Nb : TiO2 Target, Park, Jun-Hyuk, Kim, Han-Ki, Lee, Hosuk, Lee, Hosun, Yoon, Sooyoung, Kim, Chang-Dong
Novel viologen linked pyrene conjugates permeate cells efficiently and exhibit spacer length dependent DNA damage and cytotoxicity upon photoexcitation.
Flower-like tetragonal iron selenide (β-FeSe) microstructures assembled from nanoplates have been successfully prepared using Se powder and FeCl3·6H2O as elemental precursors in the basic 1,2-propylene glycol (1,2-PG) solvent system by microwave irradiation for 1 h. The product was characterized by means of X-ray diff…
The Oberst Beam Method is widely used for the measurement of the mechanical properties of damping materials. This method is a classical method based on a multilayer cantilever beam which consists of a base beam and one or two layers of other materials. The base beam is almost always made of a lightly damped material s…
Reaction between EuCl(2) and 2,2'-bipyrimidine (bpm) in de-oxygenated water afforded a cationic molecular complex [EuCl(bpm)(2)(H(2)O)(4)][Cl]·H(2)O (1). When performed in an organic solvent such as THF or methanol, the same reaction yielded a 3-dimensional coordination polymer of formula [EuCl(2)(bpm)(MeOH)(0.5)](∞)…
Co(II), Ni(II), and Cu(II) complexes with a tetradentate nitrogen donor [N4] macrocyclic ligand, viz 1,5,8,13-tetraaza-2,9-dimethyl-4,11- diphenylcyclotetradeca-2,4,4,11-tetraene were synthesized. Their structures were determined based on elemental analyses; molar conductance and magnetic susceptibility measurements;…
Tricarbonylchloro-rhenium(i) (1-4) and catecholato-platinum(ii) complexes (6, 7) of diimine ligands bearing phenol and O-protected phenol substituents have been prepared and fully characterised including single crystal structure analyses of 1, 4 and 7. The redox behaviour of the catecholato platinum(ii) complexes 6 an…
Gold decahedra and triangular plates of small size (30 and 50 nm, respectively) were grown by a green one-step synthesis process of HAuCl4 in the presence of citric acid and amphiphilic copolymer Tetronic T904® (from BASF), which both act as reducing and stabilizing agents. Tetronic T904® is a star-shaped copolymer co…
The hexanuclear cages [Mn(6)O(2)(R-sao)(6)L(2)(EtOH)(x)(H(2)O)(y)] "Mn(6)" behave as single-molecule magnets (SMMs) below a characteristic blocking temperature. As with [Mn(12)O(12)(O(2)CR)(16)(H(2)O)(4)] "Mn(12)" the electronic absorption spectra are rather featureless, yielding little information on the electronic s…