Materials Literature
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In the objective of developing ligands that simultaneously satisfy the requirements for MRI contrast agents and near-infrared emitting optical probes that are suitable for imaging, three isoquinoline-based polyaminocarboxylate ligands, L1, L2 and L3, have been synthesized and the corresponding Gd(3+), Nd(3+) and Yb(3+…
A void in the issue: A one-step self-assembly of γ-Keggin sandwich-type silicotungstates with M2Zn2 (M=Co, Ni, Zn) tetranuclear cores and tetrabutylammonium cations gave porous ionic crystals. These porous crystals are hollow frameworks containing large voids (ca. 38×38×38 Å3, see picture, voids yellow), between which…
Now we are six: Planar B6 rings embedded in one-dimensional Ti7 wheels have been found in the crystal structure of a solid-state phase (Ti7Rh4Ir2B8) for the first time. First-principles calculations indicated strong BB bonding but also significant interactions with the surrounding titanium atoms (see picture).
Crystal growth of cubic BaTiO 3 in the presence of polyethylene glycol-200 (PEG-200) is investigated step by step using powder X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Titanium precursor Ti(OC 4 H 9 ) 4 aggregates with PEG to form spherical colloidal particles at the very…
Dispersion plays an important role in aqueous chemical coating process for the preparation of BaTiO 3 ‐based powder for base‐metal‐electrode multilayer ceramic capacitors ( BME ‐ MLCC s) in our previous research. In this article, a powerful sand mill ( SC ‐milling) machine is utilized instead of traditional ball milli…
Spherical nickel cobalt aluminum hydroxide (Ni(0.80)Co(0.15)Al(0.05)-hydroxide, NCA) was prepared by a continuous coprecipitation method. A new design of the Al solution and the feeding method was applied, which enabled to prevent rapid precipitation of Al(OH)(3) and to obtain spherical NCA with large enough particle…
Multiferroics have received a great deal of attention because of their fascinating physics of order-parameter cross-couplings and their potential for enabling new device paradigms. Considering the rareness of multiferroic materials, we have been exploring the possibility of artificially imposing ferroelectricity by st…
PEGylated polylysine dendrimers show promise as novel drug delivery systems with the potential to direct site specific deposition patterns and to reduce toxicity at nontarget sites. Here the activity and toxicity profiles of a generation 5 polylysine dendrimer with 50% surface conjugation of PEG1100 and 50% surface co…
Abstract BACKGROUND: Owing to the rapid depletion of petroleum fuel, the production of bio‐butanol has attracted much attention. However, low butanol productivity severely limits its potential industrial application. It is important to establish an approach for recovering low‐concentration butanol from fermentation br…
Lipid bilayers are biomembranes common to cellular life and constitute a continuous barrier between cells and their environment. Understanding the interaction of nanoparticles with lipid bilayers is an important step toward predicting subsequent biological effects. In this study, we assessed the affinity of functional…
Aiming to explore cooperative interactions between plasmonic metal and semiconductor nanostructures as well as their special plasmon resonant properties, we synthesized Au@Cu 2 O core–shell nanoparticles to demonstrate the dramatic influence of dielectric shell both experimentally and theoretically. The extinction spe…
This investigation demonstrates a strong dependence of the magnetism of CeO 2 nanoparticles on the concentration of oxygen vacancies. A strong magnetic signal is over for a narrow range (0.1 < Ce 3+ /Ce < 0.2) of Ce 3+ concentrations in the nanoparticles. Previous studies have determined that most of the vacancies are…
Label-free optical biosensors have attracted much attention, and nanoporous metal-oxide membranes with uniform pore structure and diameter are promising candidates for platforms of label-free optical biosensors. However, development of such sensors with high sensitivity still remains challenging. In this paper, we rep…
The structure of iron‐bearing sodium borosilicate glasses with up to 10 mol% “ FeO ” has been investigated in the range 0.15 < Fe 3+ /Σ Fe < 0.95. According to M össbauer spectroscopy, Fe 3+ and Fe 2+ are mainly in tetrahedral and octahedral coordination, respectively, although other coordination states exist fo…
The Nernst coefficient for the quasi-one-dimensional metal, Li(0.9)Mo(6)O(17), is found to be among the largest known for metals (~500 microV/KT at T~20K), and is enhanced in a broad range of temperature by orders of magnitude over the value expected from Boltzmann theory for carrier diffusion. A comparatively small S…
Understanding the interaction between carbon nanotubes (CNTs) and biomolecules is essential to the CNT-based nanotechnology and biotechnology. Some recent experiments have suggested that the π-π stacking interactions between protein's aromatic residues and CNTs might play a key role in their binding, which raises inte…
We demonstrate scaffolding of plasmonic nanoparticles by topological defects induced by colloidal microspheres to match their surface boundary conditions with a uniform far-field alignment in a liquid crystal host. Displacing energetically costly liquid crystal regions of reduced order, anisotropic nanoparticles with…
We investigated the suitability of three ternary tellurite glass families for use as optical fibre materials. Systematically varied compositions were produced and the scalability of the glass volumes was assessed. Detailed thermal analysis was conducted to provide justification for the observed billet scaling results.…
Understanding the complex self-assembly of biomacromolecules is a major outstanding question. Microtubules are one example of a biopolymer that possesses characteristics quite distinct from standard synthetic polymers that are derived from its hierarchical structure. In order to understand how to design and build arti…
Real-time stress evolution in a graphite-based lithium-ion battery negative-electrode during electrolyte wetting and electrochemical cycling is measured through wafer-curvature method. Upon electrolyte addition, the composite electrode rapidly develops compressive stress of the order of 1-2 MPa due to binder swelling;…