Materials Literature
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Radioactive cadmium telluride/zinc sulfide (Cd 125 m Te / ZnS) nanoparticles were targeted to mouse lung with antibody to mouse lung endothelium and quantified using radiological histology in order to test the in vivo targeting efficacy of a nanoparticle–antibody (NP–mAb) system. The nanoparticles were linked to eithe…
Abstract ZnO has gained interest in part because of its large exciton binding energy (60 meV), good for lasing with low threshold. The renewed interest in ZnO is fuelled by availability of high quality substrates, reports of p‐type conductivity, and ferromagnetic behavior when doped with transitions metals. The field…
A varistic nonlinear I-V characteristic caused by a tunneling effect was observed in two-dimensional nanopolycrystal ZnO (NPC-ZnO) with double Schottky barriers (DSBs). Id-Vd characteristic of a NPC-ZnO field effect transistor showed a negative differential resistance characteristic at room temperature. The Id-Vg show…
Abstract The four kinds of boron‐containing coupling agents were synthesized, which were applied to improve the interfacial bonding of fluoropolymer/1,3,5‐triamino‐2,4,6‐trinitrobenze (TATB) composite. The boron atom of the coupling agent molecule can form coordinate bond with the fluorine atom of fluoropolymer; and h…
Abstract A series of Poly(imide siloxane) (PIS)/silica (SiO 2 ) hybrid nanocomposites with C‐Si covalent bonding between the homogeneous PIS copolymer and SiO 2 have been successfully synthesized. The PIS copolymer synthesized in this study is characterized by the coexistence of two segments: the polyimide segment and…
Abstract Synthesis and characterization of ferrocene‐containing main‐chain polyamides are reported in this article. A new, interesting type of organometallic monomer (FDADO) based on ferrocene was prepared by interfacial condensation of 1,1′‐dichlorocarbonyl ferrocene with 2 mol 1,8‐diamino‐3,6‐dioxaoctane (DADO). A s…
It has been proposed that surface and interface stresses can modify the elastic behavior in nanomaterials such as nanowires. The authors show that surface stresses modify the tensile response of nanowires only when nonlinear elastic effects become important leading to cross terms between the applied stress and the sur…
Epitaxial Ba0.3Sr0.7TiO3 (BST) films with significantly improved tunable performance were grown on c-plane sapphire [Al2O3(0001)] substrates using ultrathin TiN seed layers by pulsed laser deposition. A very thin (111) epitaxial TiN layer deposited at room temperature acted as a sacrificial epitaxial template for the…
Methacrylate-endcapped caprolactone (CLMA) networks were synthesized and copolymerized with 2-hydroxyethyl acrylate (HEA) seeking to tailor the hydrophilicity of the system. The resulting structure of the copolymer network is investigated by differential scanning calorimetry, thermogravimetry, and Fourier transform in…
Calculations of ballistic thermal conductance of single-walled carbon nanotube (CNT) embedded in an elastic half-space are presented. The conductance is very different than the conductance of freestanding CNT due to change in phonon velocity and maximum cutoff frequency. Depending on the temperature, the conductance o…
In this paper, a nonreciprocal left-handed transmission line has been investigated. It is composed of a normally magnetised ferrite microstripline periodically loaded with lumped capacitances and inductive stubs. Based on the simple equivalent circuit model for a predominant edge guided mode, the dispersion relation o…
Monodisperse zinc blende CdSe nanocrystals (NCs) ranged from 2.5 to 4.3 nm have been reproducibly synthesized directly open to air in a microfluidic reactor with PTFE capillaries acting as the reaction channels. The foregoing features led to superior operational stability, allowing the assessment of kinetic data such…
Abstract A series of poly(ϵ‐caprolactone)‐ b ‐poly(ethylene glycol) (PCL‐ b ‐PEG) block copolymers with different molecular weights were synthesized with a salicylaldimine‐aluminum complex in the presence of monomethoxy poly(ethylene glycol). The block copolymers were characterized by 1 H NMR, GPC, WAXD, and DSC. The…
Interlayer exchange coupling (IEC) in trilayers, which consist of a full Heusler Co2MnSi (CMS) phase as ferromagnetic layers separated by a Cr spacer layer, has been investigated. The shape of magnetization loops shows unusual oscillatory behavior with the thickness of Cr. The oscillation period is about 3.3–3.5nm. Th…
Abstract The preparation of metal nanoparticles generally requires the use of mostly toxic reducing agents according to state‐of‐the‐art procedures. Here, we report that polysorbate 80, a polymeric nonionic surfactant, when reacted with a gold salt in water at room temperature, yields well‐dispersed gold nanoparticles…
ZnO powder was mechanically milled in a ball mill. This procedure was found to greatly increase its evaporation ability. The anomalous evaporation behaviour was caused by the disordered structure of the milled material and was not related to the increase in its surface area after milling. ZnO nanowires were synthesize…
The complex analysis of dielectric/capacitance is a very useful approach to separate different polarization contributions existing in polycrystalline ceramics. In this letter, the authors use this type of spectroscopic analysis to separate the bulk’s dielectric dipolar relaxation contributions from the polarization co…
We describe herein the preparation of silver nanoparticles (AgNPs) using nucleobase adenine as protecting agent through the in situ chemical reduction of AgNO 3 with NaBH 4 in an aqueous medium at room temperature. As-prepared AgNPs were characterized by UV–visible spectra, transmission electron microscopy and x-ray p…
The authors investigated the magnetic and ferroelectric properties of hexagonally grown HoMnO3 thin films. The magnetic measurements revealed bulklike magnetic phase transitions with an additional spin-glass-like behavior feature below the Néel temperature. The ferroelectricity in the films was distinctly different fr…
Using multispeckle x-ray photon correlation spectroscopy, we have measured the slow, wave-vector-dependent dynamics of concentrated, disordered nanoemulsions composed of silicone oil droplets in water. The intermediate scattering function possesses a compressed exponential line shape and a relaxation time that varies…