Materials Literature
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Abstract The star graph proposed by Akers et al. (Proc Int Conf Parallel Process, University Park, PA, 1987, pp. 393–400) has many advantages over the n‐cube. However, it suffers from having large gaps in the possible number of vertices. The arrangement graph was proposed by Day and Tripathi (Inf Process Lett 42 (1992…
Polaronic charge transport of organic semiconductors under thermal fluctuations is analyzed based on semiclassical Ehrenfest dynamics. We consider a coarse-grained model of rubrene crystal accounting for intra- and intermolecular electron-phonon couplings as well as anisotropy of transfer integrals. The charge carrier…
Pattern fabrication was performed by transcribing Au nano-dots from Si to the hydrogel surface. The nano-dots exhibited excellent adhesion despite extensive hydrogel expansion and contraction. Au nano-dots on a hydrogel can produce iridescent color, and its spectral response can be finely modulated by controlling the…
Hydroxyapatite (Hap) is a calcium phosphate with a chemical formula that closely resembles that of the mineral constituents found in hard tissues, thereby explaining its natural biocompatibility and wide biomedical use. Nanostructured Hap materials appear to present a good performance in bone tissue applications becau…
Abstract Triolein was used as a model material to investigate the effect of concentration on self metathesis of vegetable oils. The metathesis reaction using Grubbs' second generation catalyst (used at a level of 2.5 mol % of triolein) was carried out at 38 °C using dichloromethane as the solvent. The products from th…
The terms phase transformation, polymorphism, disorder, isosterism, and isostructuralism are often the keywords used in the design and engineering of molecular crystals. Three benzoylcarvacryl thiourea derivatives with [-NH–C(S)–NH–C(O)-] cores generate molecular crystals, which provide the basis for exploring a commo…
Density-functional theory (DFT) approximations are known to give systematic errors for isodesmic reaction energies of n-alkanes to form ethane. Several explanations have been proposed, involving both the exchange or correlation nature of the problem and its distance range (i.e., medium-range or long-range interactions…
Ins Weiße getroffen: Die Verkapselung einer Naphthalimid-Einheit im Kern von Siliciumdioxidnanopartikeln ergibt Nanokügelchen mit einer starken grünen Excimer-Emission. Mit der blauen Emission des monomeren Naphthalimids und der gelben Fluoreszenz des Tetrazin-Akzeptors an der Partikelschale summiert sich diese Emissi…
PURPOSE: The osseointegration of titanium dental implants is essential for successful therapy, and this is strongly affected by the surface chemistry and roughness. In this study, using electrochemical anodization after sand blasting, and acid etching of Ti surface (SLA), SLA specimens with the high wettability of the…
The process of keratinocyte differentiation was analyzed in the regenerating epidermis of the lizard Anolis carolinensis, where the genes coding for beta-proteins (beta-keratins) are known. The regenerating epidermis forms all epidermal layers found in normal scales (Oberhäutchen-, beta-, mesos-, and alpha-layer). Thr…
A highly water-soluble crown ether bearing four sulfonate groups (1) was synthesized by sulfonation of neutral bis(m-phenylene)-26-crown-8. The complexation behavior of 1 with two bispyridinium-based guests, methyl viologen (MV(2+)) and 1,2-bis(pyridinium)ethane (BPE(2+)), was systematically investigated in both aqueo…
We report a combined experimental and theoretical study of the adsorption and assembly of a simple dipolar molecule, 4-fluorostyrene, on both Cu and Au surfaces. Self-assembly occurs in the form of small highly polar electrets with discrete (“magic”) sizes that depend on the surface metal. Charge transfer between the…
The spin-torque switching of metallic nanopillar spin valves showing strong perpendicular anisotropy are studied. The magnetic states of the layers depend on extrinsic parameters such as the magnetic field and the dc current applied to the device. A state diagram presents a comprehensive graph of the role of those par…
Abstract The effects of hydrothermal treatments of Eucalyptus globulus wood have been evaluated in terms of the solid yield and the composition of the treated wood. The contents of cellulose, xylan, and Klason lignin in treated solids were determined and interpreted by means of kinetic models. Particular attention was…
Tubular structures of the SnS 2 /SnS misfit compound, which are currently prepared in large amounts, are reported. The lattice mismatch between the two alternating sublayers of SnS 2 and SnS leads to a variety of chiral tubular structures. Such tubular structures are studied via high resolution transmission electron m…
Multicompartment micelles, especially those with highly symmetric surfaces such as patchy-like, patchy, and Janus micelles, have tremendous potential as building blocks of hierarchical multifunctional nanomaterials. One of the most versatile and powerful methods to obtain patchy multicompartment micelles is by the sol…
Highly selective thin zeolite MFI membranes are synthesized on porous stainless steel and α-alumina supports using a seeded growth method. An ultraviolet (UV) light treatment is employed as a low temperature alternative to remove the organic structure-directing agent (SDA) to avoid membrane cracking. The feasibility o…
Large segmental bone defects remain a clinical challenge. Titanium lattice-structured implants in combination with laser sintering technology promises to be an alternative to bone grafting in the treatment of critical sized bone defects. Laser sintering allows the rapid manufacturing of patient specific 3D-structured…
X-ray crystallography has been a useful tool in the development of site-directed spin labeling by resolving rotamers of the nitroxide spin-label side chain in a variety of α-helical environments. In this work, the crystal structure of a doubly spin-labeled N8C/K28C mutant of the B1 immunoglobulin-binding domain of pro…
Several drugs and natural compounds are known to be highly neurotoxic, triggering epileptic convulsions or seizures, and causing headaches, agitations, as well as other neuronal symptoms. The neurotoxic effects of some of these compounds, including theophylline and ginkgotoxin, have been traced to their inhibitory act…