Materials Literature
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Since Bill Clinton, who was then the president of United States, announced the National Nanotechnology Initiative on January 21, 2000, the research of nanotechnology has spread quickly around the world. In the material science eld, nanostructured material has also been paid much attention. Developments in the eld of…
Abstract Topographical and electronic and properties of step bunched Si(111), prepared by electrochemical processing in alkaline solution, are analyzed. Tapping mode atomic force microscopy (TM AFM) analysis shows that one bunched step consists of about 15 atomic steps (each 0.314 nm in height) and that the (111) orie…
Cartilage tissue engineering is a dynamically changing field that has the potential to address some of the tissue repair challenges seen in nasal and craniofacial reconstructive surgeries. The scope of the problem includes limited autologous tissue availability, donor site morbidity associated with the harvesting of t…
Abstract BACKGROUND: The pentitol D‐arabitol has been produced from D‐glucose utilizing osmophilic yeast strains, however, there are remarkably few reports available on the production of D‐arabitol from lactose. Previous studies in the laboratory have shown that the osmophilic yeast Kluyveromyces lactis NBRC 1903 can…
We present spectroscopic and optical studies of a non-layer-shrinkage ferroelectric liquid crystal DSiKN65. The orientational order parameters $S$, measured with respect to the smectic layer normal using IR spectroscopy on a sample aligned homeotropically, does not exhibit any significant variation between the smectic…
Abstract Due to structural effects, mechanically buckled tubes may exhibit negative stiffness (NS). The NS composites, formed by embedding the NS and positive‐stiffness (PS) phases, have been shown to exhibit exceptional enhancements in their effective stiffness and viscoelastic damping. Through molecular dynamics sim…
The synthesis of inorganic fullerene (IF) nanoparticles and IF hollow spheres of titanium disulfide by a simple colloidal route is reported. The injection temperature of the titanium precursor into the solvent mixture was found to be important in controlling the morphology.
Abstract Blends of low‐density polyethylene (LDPE) and polylactide (PLA) were prepared by melt coextrusion. The plastic behavior of the LDPE/PLA blends was investigated at room temperature under uniaxial tension by means of a video‐controlled system. The constitutive behavior was analyzed in terms of the variations of…
Surface engineering approaches were adopted in the preparation of advanced hydrogen sorption materials, based on 'low-temperature', AB5-type intermetallides. The approaches investigated included micro-encapsulation with palladium and mixed-metal mantles using electroless plating. The influence of micro-encapsulation o…
While nanoelectronics refers to electronic transport and storage phenomena on the nanoscale, “nanoionics” refers-on that same scale-to ionic transport and storage phenomena. At interfaces, and particular in con ned systems, exciting ionic phenomena are observed that indeed justify the use of this term (Maier 2005b).
Now the size of the structures that can be produced is approaching the de Broglie wavelength of the electrons in the solids, leading to stronger quantum eects. In addition to interesting new physics, this drive toward smaller length scales has important practical consequences. When semiconductor devices reach about 1…
The asymmetric unit of the title cocrystal, C(14)H(14)N(4)O(2)·C(14)H(10)O(4)S(2), comprises a twisted 2,2'-(disulfanediyl)dibenzoic acid mol-ecule [dihedral angle between the benzene rings = 76.35 (10)°] and a U-shaped N,N'-bis-(3-pyridyl-meth-yl)ethane-diamide mol-ecule with the pyridyl groups lying to the same side…
John Slonczewski (1996) and Luc Berger (1996) predicted that electron currents in magnetic multilayer devices can transport angular momentum from one magnetic layer to another, thereby exerting a torque on the local magnetization (see Figure 38.1a). Under the correct conditions, they predicted that the magnetization c…
Nanotechnology is being applied in medical sciences to try and create personalized medicine relying on biomarker-based proteomics and genomic technologies, while nanoparticles can be used for qualitative or quantitative in vivo or ex vivo diagnosis by concentrating, amplifying, and protecting a biomarker from degradat…
The excited-state proton transfer and geminate recombination of 6-hydroxyquinoline (6HQ) encaged in catalytic Na(+)-exchanged faujasite zeolites X (NaX) and Y (NaY) have been explored by measuring steady-state and picosecond time-resolved spectra. The pathways and rate constants of proton transfer of excited 6HQ are d…
Conical-shaped penta(aryl)[60]fullerene thiol derivatives bearing one alkyl thiol linker surrounded by five phenyl or biphenyl groups were synthesized in good yield, and characterized by X-ray crystallographic analysis. These conical fullerene thiols were used for formation of self-assembled monolayers (SAMs) on gold…
Out in the open: Hydrophobically modified molecular beacons were inserted into lipid nanoparticles. Upon addition of the target DNA to a solution of the lipid nanoparticles, irreversible nanoparticle aggregation occurred (see picture). This aggregation phenomenon results from the opening of the molecular beacons.
Irreversibility field up to 42 T of GdBa2Cu3O7-δ thin films grown by PLD and its dependence on deposition parameters, Rosenzweig, St, Hänisch, J, Iida, K, Kauffmann, A, Mickel, Ch, Thersleff, T, Freudenberger, J, Hühne, R, Holzapfel, B, Schultz, L
The right-handed α-helix is the dominant helical fold of α-peptides, whereas the left-handed 3(14)-helix is the dominant helical fold of β-peptides. Using molecular dynamics simulations, the properties of α-helical α-peptides and 3(14)-helical β-peptides with different C-terminal protonation states and in the solvents…
SnS thin films were pulse-electrodeposited on conducting glass substrates from a solution containing Sn(II) salt and Na 2 S 2 O 3 . Schottky devices with this film were prepared by vacuum depositing Al electrodes, and the devices were used to study the electrical transport and activation energy of the traps in the for…