M. Yakup Arıca、Devrim Tuğlu、M. Murad Başar 等 6 位作者2007-12-20Journal of Biomedical Materials Research Part B Applied Biomaterials
In this work, preparation and characterization of novel three different antibiotic loaded penile prosthesis in the rod form were investigated by copolymerization of 2-hydroxyethylmethacrylate (HEMA) with poly(ethylene glycol)-methacrylate, (PEG-MA). To achieve this goal, a series of novel copolymer hydrogels were prep…
Electrospun Nanofibers in Biomedical ApplicationsPolymer Surface Interaction StudiesSurgical Sutures and Adhesives
Tomomi Koshiyama、Norihiko Yokoi、Takafumi Ueno 等 8 位作者2007-12-20Small
A bionanocup chemical reactor is constructed from a heteroprotein assembly from bacteriophage T4. The preparation of a stable iron(III) porphyrin–bionanocup composite is described. The hydrophobic cup provides a space suitable for the fixation of low-water-solubility iron(III) porphyrins. The application of the iron(I…
Porphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation MechanismsSurface Chemistry and Catalysis
Rahul M. Rasal、Bradley G. Bohannon、Douglas E. Hirt2007-12-20Journal of Biomedical Materials Research Part B Applied Biomaterials
The major objective of this research was to modify the surface properties of poly(lactic acid) (PLA) and poly(hydroxyalkanoate) (PHA) films by using a sequential two-step photografting approach. In step 1, benzophenone was photografted on the film surface and in step 2, hydrophilic monomers acrylamide and acrylic acid…
biodegradable polymer synthesis and propertiesElectrospun Nanofibers in Biomedical ApplicationsAdditive Manufacturing and 3D Printing Technologies
Janusz Nowotny、T. Ba̧k、M. K. Nowotny 等 4 位作者2007-12-20The Journal of Physical Chemistry C
The present work reports defect diagrams showing the effect of oxygen activity on the concentration of both electronic and ionic defects in TiO 2 and its solid solutions with donor- and acceptor-type ions. These diagrams were determined by using defect equilibrium constants related to defect reactions describing the f…
TiO2 Photocatalysis and Solar CellsGas Sensing Nanomaterials and SensorsElectronic and Structural Properties of Oxides
Pilnam Kim、Seunghyun Baik、Kahp Y. Suh2007-12-20Small
A simple, scalable method for one-dimensional alignment of single-walled carbon nanotubes (SWCNTs) inside reversibly bonded nanochannels is reported. Nanochannels are used as a guide for introducing a solution containing SWCNTs. Two nanochannels 50 and 200 nm in width are used. Highly oriented, one-dimensional arrays…
Carbon Nanotubes in CompositesMicrofluidic and Capillary Electrophoresis ApplicationsNanopore and Nanochannel Transport Studies
Ivan Sondi、Srečo D. Škapin、Branka Salopek‐Sondi2007-12-20Crystal Growth & Design
A novel, bioinspired precipitation process, effectuated through the decomposition of urea by catalytically active Canavalia ensiformis urease (urea amidohydrolase; EC 3.5.1.5), in a solution of calcium and magnesium salts was used to precipitate uniform submicron-size, nanostructured calcium carbonate particles. The s…
Calcium Carbonate Crystallization and InhibitionEnzyme Production and CharacterizationMicrobial Applications in Construction Materials
Fakhreia Al‐Sagheer、Zahoor Ahmad、S. Muslim2007-12-20International Journal of Polymeric Materials
Two types of hybrid materials from Poly(vinyl chloride) (PVC) using different amounts of silica have been prepared by the sol-gel technique. The hybrids without inter-phase bonding were prepared by the in-situ generation of silica network from tetraethoxysilane (TEOS) in the PVC matrix. The inter-phase bonding in the…
Polymer Nanocomposites and Propertiesbiodegradable polymer synthesis and propertiesSilicone and Siloxane Chemistry
Xiaoxu Deng、Pingping Xiao、Xiang Zheng 等 10 位作者2007-12-20Journal of Optics A Pure and Applied Optics
An electro-optic (EO) polymer modulator employing a symmetrical metal-cladding waveguide structure is presented. Based on the free-space coupling technique, the energy of incident light on the metal-cladding is coupled directly from free space into the waveguide without using a prism, grating and other coupling compon…
Photonic and Optical DevicesAdvanced Fiber Laser TechnologiesNonlinear Optical Materials Research
Hashmukh S. Patel、Jigar A. Patel2007-12-20International Journal of Polymeric Materials
Poly(amido-imide)s (PAI)s were prepared by the intermolecular Diels-Alder (DA) reaction of N-N′-1,4-phenylene bis[(2-furanyl methylamino)acetamide] (PBFA) with various bis(maleimide)s. The DA reaction was carried out in tetrahydrofuran as a solvent, as well as in bulk, followed by aromatization of sodium acetate inter…
Epoxy Resin Curing ProcessesSynthesis and properties of polymersSilicone and Siloxane Chemistry
Lezhong Li、Zhongwen Lan、Zhong Yu 等 4 位作者2007-12-20IEEE Transactions on Magnetics
We investigated the relationship between magnetic properties of MnZn ferrites and Fe2O3stoichiometry by measuring magnetic properties, electrical resistivity, and density. We used a scanning electron microscope to observe the fractured surface of sintered samples. MnZn ferrites were prepared by adapting the convention…
Magnetic properties of thin filmsMagnetic Properties and Synthesis of FerritesMagnetic Properties and Applications
Sung Hwa Jhung2007-12-20Bulletin of the Korean Chemical Society
Particle size of silicones can be controlled by changing the reaction conditions such as temperature and concentrations of water and tetramethoxysilane (TMOS). Alternatively, the use of ultrasound radiation is also an elegant technique to decrease the particle size. Small silicone particles can be obtained at low temp…
Mesoporous Materials and CatalysisIron oxide chemistry and applicationsChemical Synthesis and Characterization
Zhen Tian、Haibin Li、Meng Wang 等 5 位作者2007-12-20Journal of Polymer Science Part A Polymer Chemistry
Abstract A kind of novel soft amphiphilic ABA triblock copolymers, poly( L ‐lysine)‐ b ‐poly(tetrahydrofuran)‐ b ‐poly( L ‐lysine), was synthesized by the anionic ring‐opening polymerization of ε‐benzyloxycarbonyl‐ L ‐lysine N ‐carboxyanhydride using amine‐terminated poly(tetrahydrofuran) as a macroinitiator and subse…
Advanced Polymer Synthesis and CharacterizationLuminescence and Fluorescent MaterialsSupramolecular Self-Assembly in Materials
Huai‐Ping Cong、Shu‐Hong Yu2007-12-20Advanced Functional Materials
Abstract Novel raft‐like zinc(II)–phenylalanine complexes and zinc(II)–phenylalanine/acid green 27 (AG27) hybrid radial bundles have been successfully synthesized by a simple refluxing reaction. The formation processes of the morphologies and the superstructures of the hybrid bundles were proposed based on the time‐de…
Luminescence and Fluorescent MaterialsSupramolecular Self-Assembly in MaterialsPhotochromic and Fluorescence Chemistry
Mark Kief、Venkat Inturi、M. Benakli 等 8 位作者2007-12-20IEEE Transactions on Magnetics
Advanced perpendicular writers continue to demand maximum write fields, fast rise times at ever vanishing head-media spacing and strict reliability standards. This means that the asymptotic progression to a 2.4 T pole with nearly ideal magnetic response continues. At the same time we must control critical pole dimensi…
Magnetic properties of thin filmsSemiconductor materials and devicesCopper Interconnects and Reliability
Jennifer R. Bourque、Stephen L. Bearne2007-12-20Biochemistry
Mandelate racemase from Pseudomonas putida catalyzes the Mg2+-dependent 1,1-proton transfer that interconverts the enantiomers of mandelate. Residues of the 20s and 50s loops determine, in part, the topology and polarity of the active site and hence the substrate specificity. Previously, we proposed that, during racem…
Metabolism and Genetic DisordersEnzyme Structure and FunctionAmino Acid Enzymes and Metabolism
Robie L. Lucas、Michael Benjamin、Theresa M. Reineke2007-12-20Bioconjugate Chemistry
Contrast agents with high relaxivity are needed to increase the sensitivity of magnetic resonance imaging (MRI) for novel clinical and research applications. For this reason, polymeric structures containing multiple Gd(III) chelates are of current interest. Described in this communication are the syntheses and charact…
Advanced MRI Techniques and ApplicationsLanthanide and Transition Metal ComplexesMRI in cancer diagnosis
Vijay Singh2007-12-20Bulletin of the Korean Chemical Society
MgAl2O4:Eu3+ red-light emitting powder phosphor was prepared at temperature as low as 500 oC within a few minutes by using the combustion route. The prepared powder was characterized by X-ray diffraction, scanning electron microscopy and Fourier-transform infrared spectrometry. The luminescence of Eu3+-activated MgAl2…
Luminescence Properties of Advanced MaterialsRadiation Detection and Scintillator TechnologiesSolid-state spectroscopy and crystallography
Pedro Alfaro-Calderón、M. Cruz‐Irisson、Chumin Wang-Chen2007-12-20Nanoscale Research Letters
Abstract Within the linear response theory, a local bond-polarization model based on the displacement–displacement Green’s function and the Born potential including central and non-central interatomic forces is used to investigate the Raman response and the phonon band structure of Ge nanostructures. In particular, a…
Silicon Nanostructures and PhotoluminescenceNanowire Synthesis and ApplicationsSemiconductor materials and interfaces
Nichols A. Romero、William D. Mattson2007-12-20Physical Review B
The principal Hugoniot of diamond is calculated using density-functional molecular dynamics. Using existing ab initio melt lines, diamond is predicted to melt on its Hugoniot in the range of $700--745\phantom{\rule{0.3em}{0ex}}\mathrm{GPa}$. The shock compression of diamond into a high-density conducting liquid phase…
Metal and Thin Film MechanicsHigh-pressure geophysics and materialsDiamond and Carbon-based Materials Research
Jie Shen、Kousuke Tsuchiya、Kenji Ogino2007-12-20Journal of Polymer Science Part A Polymer Chemistry
Abstract In this study, macroinitiators with different content of atom‐transfer radical polymerization (ATRP) functional group on polythiophene backbone were first prepared by the copolymerization of 3‐[1‐ethyl‐2‐(2‐bromopropionate)]thiophene and 3‐hexylthiophene with various feed ratio. Then poly [3‐hexyl‐2,5‐thienyl…
Organic Electronics and PhotovoltaicsConducting polymers and applicationsLuminescence and Fluorescent Materials