Materials Literature
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Abstract This work describes the molecular structure of bombesin (BN) and its analogs on the basis of the absorption infrared and Raman results described below. In these analogues is replaced one ([D‐Phe 12 ]BN, [Tyr 4 ]BN, and [Lys 3 ]BN) or two ([Tyr 4 ,D‐Phe 12 ]BN, [D‐Phe 12 ,Leu 14 ]BN, and [Leu 13 ‐®‐Leu 14 ]BN)…
A cure for hydrophobia: Monodisperse semiconductor nanorods are synthesized using nitrates as precursors. The surface modification of these hydrophobic nanocrystals is accomplished through encapsulation with a carboxylic acid enriched polymer (see TEM images), which leads to hydrophilic, bioconjugatable nanospheres fo…
A simple semi-automated microseeding procedure for nanolitre crystallization experiments is described. Firstly, a microseed stock solution is made from microcrystals using a Teflon bead. A dilution series of this microseed stock is then prepared and dispensed as 100 nl droplets into 96-well crystallization plates, fac…
Protein polymers (long-chain proteins in which a specific amino acid sequence "monomer" is repeated through the molecule) are found widely in nature, and these materials exhibit a diverse array of physical properties. One class of self-assembling proteins is hydrophobic-polar (HP) protein polymers capable of self-asse…
We present a theoretical model to describe finite beams incident on reflective volume Bragg gratings. We also give experimental results that verify our model. From these results, we identify certain properties of reflective volume Bragg gratings, such as beam waist, incidence angle and beam profile, that have direct i…
We study slip boundary conditions for simple fluids at surfaces with nanoscale chemical heterogeneities. Using a perturbative approach, we examine the flow of a Newtonian fluid far from a surface described by a heterogeneous Navier slip boundary condition. In the far field, we obtain expressions for an effective slip…
This work reports a solution-based approach to grow high-density vertically aligned ZnO rod arrays with a multistage terrace structure (HDVAMT) on Au nanoparticle covered glass substrates. The solar cell performance of HDVAMT is 10 times better than that of the disordered ZnO due to the much higher short circuit curre…
Self-assembly of the ligands N,N'-1,5-naphthalenebis(oxamate) (1,5-naba) and N,N'-2,6'-anthracenebis(oxamate) (2,6-anba) by Cu(II) ions affords the two new dicopper(II) metallacyclophanes 2a and 3b, whereby the metal centers are connected by double naphthalene- and anthracenediamidate bridges with alpha,alpha' and bet…
Highly crystalline, uniform Fe nanoparticles were successfully synthesized and encapsulated in zirconia shell using sol-gel process. Two different approaches have been employed for the coating of Fe nanoparticle with zirconia. The thickness of zirconia shell can be readily controlled by altering molar ratio of Fe nano…
Tuberculosis is a major cause of death worldwide. Understanding of the pathogenicity of Mycobacterium tuberculosis has been advanced by gene analysis and has led to the identification of genes that are important for intracellular survival in macrophages. One of these genes encodes HsaD, a meta-cleavage product (MCP) h…
We describe a theoretical approach for determining the permeability tensor of polycrystalline ferrites regardless of their magnetization state. To take into account both the demagnetizing dynamic fields related to the magnetic domain and grain shapes and the magnetic interactions between adjoining domains and between…
Negative Schwingungen: Eine Netzwerkstruktur aus Cadmiumcyanid zeigt eine unerwartet starke isotrope negative thermische Ausdehnung über einen großen Temperaturbereich (siehe Auftragung des Elementarzellparameters a gegen die Temperatur). Gastmoleküle in den Poren der Gerüststruktur blockieren die transversalen Schwin…
Mesoporous silica films with cylindrical pores oriented normal to the substrate are prepared by selective deposition of silica within the poly(hydroxy styrene) domains of poly(α-methyl styrene-b- hydroxy styrene) template films using supercritical carbon dioxide as a delivery medium. Atomic force microscopy, electron…
Temperature-dependent Raman scattering, dielectric, and powder x-ray diffraction studies have been carried out on Pr-doped $\mathrm{Sr}\mathrm{Ti}{\mathrm{O}}_{3}$ ceramic samples. Activation of $\mathrm{T}{\mathrm{O}}_{2}$ and $\mathrm{T}{\mathrm{O}}_{4}$ polar modes indicated increasing degree of polar distortion by…
Antioxidant active packaging consisting of coextruded films made of low density polyethylene (LDPE) added with 0, 8, and 14 mg/g of butylated hydroxytoluene (BHT) and polyamide 6/66 were fabricated. The release of BHT from the films to Asadero cheese was determined. Most of the BHT was diffused from the LDPE layer to…
Abstract Stable, highly colored push‐pull chromophores with NMe 2 donor and C=C(CN) 2 acceptor moieties, featuring intense intramolecular charge‐transfer (CT) bands in the UV/Vis spectra, are reported. In an attempt to prepare the quinoid push‐pull systems 2 , chromophores 10 and 11 , with a central cyclohexene spacer…
Visible light photocatalysis using water-soluble tin porphyrin ( s -SnP, [Sn(OH 2 ) 2 (TPy H P)](NO 3 ) 6 ) and water-insoluble tin porphyrin Sn(OH) 2 (TPP) ( ins -SnP) immobilized on SiO 2 ( hetero -SnP) was investigated. The visible light photocatalytic activities of s -SnP and hetero -SnP were demonstrated successf…
beta-Hydroxyacyl-acyl carrier protein dehydratase (FabZ) is an important enzyme for the elongation cycles of both saturated and unsaturated fatty acids biosyntheses in the type II fatty acid biosynthesis system (FAS II) pathway. FabZ has been an essential target for the discovery of compounds effective against pathoge…
In the present study, a novel process has been developed to improve the application of single-walled carbon nanotubes (SWCNTs) in dental resin-based composites (RBCs). Efforts have been made to deposit a thin shell of nano-SiO(2) onto the oxidized surface of SWCNTs by using a thin adlayer of 3-aminopropyltriethoxysila…
Abstract The kinetics of the oxirane cleavage of epoxidized soybean oil (ESO) by methanol (Me) without a catalyst was studied at 50, 60, 65, 70 °C. The rate of oxirane ring opening is given by k [Ep][Me] 2 , where [Ep] and [Me] are the concentrations of oxiranes in ESO and methanol, respectively and k is a rate consta…