Materials Literature
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The Zintl phase Yb(14)MnSb(11) was successfully doped with Ge utilizing a tin flux technique. The stoichiometry was determined by microprobe analysis to be Yb(13.99(14))Mn(1.05(5))Sb(10.89(16))Ge(0.06(3)). This was the maximum amount of Ge that could be incorporated into the structure via flux synthesis regardless of…
Noncanonical amino acids with newly designed side-chain functionalities represent powerful tools to improve structural, biological, and pharmacological properties of peptides and proteins. In this context, fluorinated amino acids have increasingly gained importance. Despite the current wide use of fluorination in prot…
Abstract There is an increasing interest in developing surface enhancement Raman spectroscopy methods for intracellular biomolecule and for in vitro protein detection that involve dye or protein–dye conjugates. In this work, we have demonstrated that protein adsorption on silver nanoparticle (AgNP) can significantly a…
In this work a thermal interface material fabricated by thermocompression bonding of vertically aligned carbon nanotube turf (VACNT) to metallized substrates was characterized. The VACNT structure was fabricated onto silicon substrates using chemical vapor deposition. The structures were then transferred to metallized…
The ferroelectric properties in a magnetic field (H) of varying magnitude and direction have been investigated for the triangular-lattice helimagnet CuFe(1-x)Ga(x)O(2) (x = 0.035). The in-plane H was found to induce the rearrangement of six possible multiferroic domains. Upon every 60 degrees rotation of in-plane H ar…
Using density functional calculations, we demonstrate that the planarity of the nonclassical planar tetracoordinate carbon (ptC) arrangement can be utilized to construct new families of flat, tubular, and cage molecules which are geometrically akin to graphenes, carbon nanotubes, and fullerenes but have fundamentally…
This study has evaluated the effects of three industrially relevant multi-walled carbon nanotubes (MWNTs) on human Jurkat T cells and compared them to those of crocidolite asbestos. No overt acute toxicity was observed for all MWNTs tested although signs of oxidative stress were evident. MWNTs did not activate resting…
A three-dimensional finite element method program is developed to investigate the magnetoelectric (ME) coupling in multiferroic composites. For a bilayer plate, we show that: (1) the electric potential in the piezoelectric layer induced by the magnetic potential is not uniform but exhibits concentration near the edge/…
The rehydration process of a calcined MgAl-layered double hydroxide (LDH) with a Mg/Al molar ratio of 3 was systematically analyzed at different temperatures and relative humidity. Qualitative and quantitative experiments were done. In the first set of samples, the temperature or the relative humidity was varied, fixi…
Electrical conductivity and shielding effectiveness (SE) of conductive polymer composite of polypyrrole-chitosan (PPy-CHI) have been studied. It was shown that chitosan can improve electrical and thermal properties of polypyrrole. The applicability of PPy-CHI composite films to the electromagnetic wave shielding in th…
Inhalation toxicity studies of nanoparticles require production of test aerosols with a number of acceptable characteristics. Five different generation methods for producing a nanoparticle aerosol from the bulk powder were evaluated with the goal of producing an acceptable aerosol that is homogenous, has a consistent…
UNLABELLED: In our previous studies using combined radioisotopes with chemotherapeutic liposomal drugs (i.e., (111)In-labeled polyethylene glycol (PEG)ylated liposomal vinorelbine) we have reported possible therapeutic efficiency in tumor growth suppression. Nevertheless, the challenge remains as to whether this chemo…
A theoretical study has been performed to explain problems in the structural analysis of LiBH4 and its recently discovered superionic conductance. First-principles molecular dynamics simulations for the high temperature (hexagonal) phase show doubly split and diffuse occupation in the c-direction at Li and B sites, re…
Laser photolysis of WCl(6) in ethanol and a specific mixture of V(2)O(5) and VCl(3) in ethanol lead to carbon modified vanadium and tungsten oxides with interesting properties. The presence of graphene's aromatic rings (from the vibrational frequency of 1,600 cm(-1)) together with C-C bonding of carbon (from the Raman…
The x-ray excited luminescence spectra of different quality CuI crystals were measured. The prevailing blue luminescence and the unusual red luminescence were found at the same time. The relative intensity of these two luminescence peaks was different because of the change of defect concentration in crystals. By compa…
Abstract Lamellae (symmetric) forming polystyrene‐b‐poly(4‐vinylpyridine) (PS‐b‐P4VP) block copolymers (BCPs) were used to produce nanostructured thin films by solvent (toluene) casting (spin‐coating) onto silicon substrates. As expected, strong micellization of PS‐P4VP in toluene results in poorly ordered hexagonally…
Four different titanocene complexes, [Ti(η5-C5H5)2Cl2] (1), [Ti(η5-C5H5)(η5-C5H4Pri)Cl2] (2), [Ti(η5-C5H5)(η5-C5H4But)Cl2] (3) and [Ti(η5-C5H5){η5-C5H3(SiMe3)2}Cl2] (4), have been grafted onto dehydroxylated MCM-41 to give the novel materials MCM-41/[Ti(η5-C5H5)2Cl2] (S1), MCM-41/[Ti(η5-C5H5)(η5-C5H4Pri)Cl2] (S2), MCM…
Abstract A controllable heterostructure consisting of ZnO nanorod arrays with attached Ag nanoparticles at only one end has been synthesized via a facile and convenient galvanic reduction method. Scanning electron microscopic images of these nanostructures showed good selectivity of Ag deposition on the tip of ZnO nan…
Abstract Protein–surface interactions are fundamental in natural processes, and have great potential for applications ranging from nanotechnology to medicine. A recent workshop highlighted the current achievements and the main challenges in the field. Copyright © 2009 John Wiley & Sons, Ltd.
Substitution of Sn 4+ ion in CeO 2 creates activated oxygen in Ce 0.8 Sn 0.2 O 2 leading to higher oxygen storage capacity compared to Ce 0.8 Zr 0.2 O 2 . With Pd ion substitution in Ce 0.8 Sn 0.2 O 2, activation of oxygen is further enhanced as observed from the H 2 /TPR study. Both EXAFS analysis and DFT calculation…