Materials Literature
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We use first-principles density functional theory calculations to investigate the dielectric response of BaZrO 3 based perovskites. In this study we have substituted Ca for Ba over a range of compositions to understand what causes the recently reported (Levin et al., J. Solid State Chem. 2003, 175, 170) nonmonotonic d…
Carbon nanostructures represent a revolution in science and hold the potential for a large range of applications because of their interesting electrical, mechanical, and optical properties. Multiwall carbon nanotubes and carbon nanofibers of herringbone formation were grown by chemical vapor deposition on different ca…
Oriented mesostructured silica films show potential for the design of nanostructured materials for applications in optics, electronics, and so on. In this report, we propose a new approach to control the orientation of mesochannels using a laser-modified polyimide surface. Pluronic 123 was employed as the structure ag…
Reaction of copper powder, manganese(II) nitrates and multidentate Schiff-base ligands in hot methanol solution led to the isolation of two new MnIII–CuII heterometallic aggregates, [Mn2 IIICu2 II(H2L)4] · (NO3)2 · 2CH3OH (1) (H4L=2-[(2-hydroxy-benzylidene)-amino]-2-hydroxymethyl-proane-1,3-diol) and [MnIIICuII 3(sae)…
The behavior of quantum dots (QDs) in penetration into cell nuclei is investigated. It is discovered that the combination of an organic fluorophore staining the nuclei and UV irradiation can cause QDs of certain size or surface modifications to be trapped inside the cell nuclei. These findings not only provide new ins…
Amplification pretargeting can play an important role in molecular imaging by significantly increasing the accumulation of signal in target tissues. Multiple-step amplification pretargeting offers the potential to greatly improve target localization of effector molecules through the intermediate use of polymers conjug…
Based on the transformation media theory, the authors propose a way to replace a wide window with a narrow slit filled with designed metamaterial to achieve the same transmittance as the one of the window. Numerical simulations for a two dimensional case are given to illustrate the ideas and the performance of the des…
We characterize the structural transitions in an initially homeotropic bent-rod nematic liquid crystal excited by ac fields of frequency f well above the dielectric inversion point fi. From the measured principal dielectric constants and electrical conductivities of the compound, the Carr-Helfrich conduction regime is…
The structure and ligand environment of Co(salen) nanoparticles and unprocessed Co(salen) have been determined by the combined application of infrared, Raman, X-ray absorption near edge structure (XANES), and extended X-ray absorption fine structure (EXAFS) spectroscopies, and X-ray diffraction (XRD) experiments befor…
Eu3+ doped LaF3 nanoparticles with core/shell morphologies were synthesized and selected spectroscopic properties were measured as a function of heat treatment times and temperatures. More specifically, the relative intensity of photoluminescence spectra, both through direct excitation of the lanthanide as well as pho…
Abstract Lithographically Patterned Nanowire Electrodeposition (LPNE) is a new nanofabrication technique in which photolithography is used to define the position of electrodeposited nanowires on the surface of a dielectric such as glass or oxidized silicon. In LPNE, a resist‐covered nickel film with a thickness of bew…
Two kinds of tris(beta-diketonato) metal(III) complexes denoted as [M(acac)2(LC12)] and [M(acac)2(Lazo)] (M=Ru(III) and Co(III); acac=acetylacetonato; LC12=1,3-didodecyloxyphenyl-1,3-propanedionato; Lazo=3-[4'-(4''-(butoxy)phenylazo)phenyl]-pentane-2,4-dionato) were synthesized and optically resolved into Delta, Lambd…
The crystal structures of diamagnetic dichloro(2-aza-2-methyl-5,10,15,20-tetraphenyl-21-carbaporphyrinato-N,N',N'')-tin(IV) methanol solvate [Sn(2-NCH 3NCTPP)Cl 2.2(0.2MeOH); 6.2(0.2MeOH)] and paramagnetic bromo(2-aza-2-methyl-5,10,15,20-tetraphenyl-21-carbaporphyrinato-N,N',N'')-manganese(III) [Mn(2-NCH 3NCTPP)Br; 5]…
Abstract Poly(ϵ‐caprolactone)diol (PCL) with five different molecular weights (e.g., 400, 2000, 3000, 4000, and 8000 g/mol) was grafted onto the surface of functionalized‐multiwalled carbon nanotubes (f‐MWNTs) by grafting to approach to form PCL‐ grafted ‐MWNTs (PCL‐ g ‐MWNTs). The grafting was confirmed by Fourier tr…
Conditions for electric discharge in a cavitation bubble, which experiences pulsations in a multibubble cavitation field, are considered. It is shown that, in the bubble, the development of an electron avalanche is most probable. Basic kinetic equations for diffusion, recombination, and other reactions of radicals wit…
The solubilities of clindamycin phosphate in different solvents (methanol, ethanol, and dimethyl sulfoxide) were measured at temperatures from (283.15 to 333.15) K by a synthetic method at atmospheric pressure. The experimental data were correlated with the modified Apelblat equation. The equation was found to provide…
Introduction : Metals have a wide range of applications in implant and prosthetic materials in dentistry. Corrosion resistance and biocompatibility of metals should be improved in order to utilize them as biomaterials. The aim of this work was to prepare metallic coatings on 316L stainless steel dental implants, to ev…
It can be expected that a chiral solvent possesses a certain potential to discriminate between two enantiomers by creating specific weak interactions and forming diastereomeric complexes which have different physical properties. Thus, for chiral solvents, there might be an asymmetry in the solubility phase diagrams th…
Molecular polarizabilities of photochromic diarylethenes bearing different chemical groups as substituents have been calculated by density functional theory (DFT) simulations with the aim to obtain an estimate of the refractive index of a glassy matrix containing diarylethenes as active species. Simple models have bee…
In this study, protein-conjugated Ag2S nanorods were prepared in aqueous solution, and high-resolution transmission electron microscopy (HRTEM) was used to track the whole process of the nanorod growth. Our results showed that the final products were formed via two-step oriented attachment, that is, particle-particle…