Fluorinated liquid crystals formed by halogen bonding
New, halogen-bonded fluorinated mesogens are reported; the expected microphase separation associated with perfluoroalkyl chains is surprisingly absent in the mesophase.
Materials Literature
文献浏览
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Luminescent nanobeads: attachment of surface reactive Eu(iii) complexes to gold nanoparticles
Gold nanoparticles were used as a scaffold to assemble multiple tailor-made europium(III) complexes yielding water-soluble gold nanoparticles that display red, Eu(III), luminescence.
Optical properties of single semiconductor nanocrystals
We present an overview of the current progress in the understanding of the (steady state) optical properties of individual II-VI semiconductor nanocrystals. We begin with a presentation of the conceptual development of the theory required to model the electronic structure of these systems. This is followed by an overv…
Germanate glass as a window for high energy laser systems
A modified Barium Gallo-Germanate glass has been developed as an exit window for high energy lasers operating in the mid-infrared wavelength region. All the physical properties, for application as a window for high energy laser systems have been measured. Absorption loss and thermo-optic coefficient were identified as…
Microfluidic continuous flow synthesis of rod-shaped gold and silver nanocrystals
We present a continuous flow synthesis of gold and silver nanorods allowing tailored design of particles with desired shapes and online monitoring of particle growth.
Charge transport in disordered solids with applications in electronics
Introduction. 1. Transport via Delocalized States in Disordered Materials (Igor P. Zvyagin). 2. Description of Charge Transport in Amorphous (S. D. Baranovskii and O. Rubel). 3. Hydrogenated Amorphous Silicon - Material Properties and (W. Fuhs). 4. Applications of Disordered Semiconductors in Modern Electronics: Selec…
Production of Recombinant and Tagged Proteins in the Hyperthermophilic Archaeon Sulfolobus solfataricus
Many systems are available for the production of recombinant proteins in bacterial and eukaryotic model organisms, which allow us to study proteins in their native hosts and to identify protein-protein interaction partners. In contrast, only a few transformation systems have been developed for archaea, and no system f…
Hydrothermal growth of large-scale micropatterned arrays of ultralong ZnO nanowires and nanobelts on zinc substrate
Large-scale, ultralong ZnO nanowire and nanobelt arrays with honeycomb-like micropatterns have been fabricated by hydrothermal oxidation of zinc foil in aqueous alkaline (NH4)2S2O8 solutions.
A universal empirical expression for the isotope surface exchange coefficients (k*) of acceptor-doped perovskite and fluorite oxides
The isotope surface exchange coefficient k* determined in an 18O/16O exchange experiment characterises the exchange flux of the dynamic equilibrium between oxygen in the gas phase and oxygen in a solid oxide. At present there is no atomistic expression that relates measured exchange coefficients to materials' paramete…
Microstructural Optimization of Anode-Supported Solid Oxide Fuel Cells by a Comprehensive Microscale Model
The microstructural optimization of two-layer cathodes in anode-supported solid oxide fuel cells (SOFCs) was numerically performed by a comprehensive microscale model developed by the authors. The single-cell performances of anode-supported SOFCs, recently reported by Zhao and Virkar, were studied to provide the detai…
Layered double hydroxide nanomaterials as potential cellular drug delivery agents
Abstract This paper briefly reviews the recent progress in using layered double hydroxide (LDH) nanomaterials as cellular delivery agents. The advantages of LDHs as cellular delivery agents are summarized, and the processes of interaction/de-intercalation of anionic drugs (genes) into/from LDH nanoparticles are discus…
Nanosized Li[sub 4]Ti[sub 5]O[sub 12] Prepared by Molten Salt Method as an Electrode Material for Hybrid Electrochemical Supercapacitors
Nanosized lithium titanium oxide powder has been prepared using as a high-temperature flux. X-ray diffraction, scanning electron microscope, and transmission electron microscope measurements indicate that the obtained particles are uniform and the particle size of powder can be controlled by flux content and heating t…
On the connection between optical absorption/extinction and SERS enhancements
Several aspects of the connection between the absorption/extinction spectra and the enhancement in surface enhanced Raman scattering (SERS) are analyzed and discussed. It is shown that in many standard situations the spatial distribution of the resonance plays a role for the difference between extinction/absorption an…
Single-phase bimetallic system for the selective oxidation of glycerol to glycerate
Single phase bimetallic Au/Pd catalyst was prepared and characterised by TEM techniques. The high activity in the selective liquid phase oxidation of glycerol towards glycerate is unambiguously attributed to the synergistic effect of alloy.
One-step fabrication of silver nanoparticle embedded polymer nanofibers by radical-mediated dispersion polymerization
Silver nanoparticle embedded poly(vinyl alcohol)-poly(methyl methacrylate) nanofibers, ca. 30 nm in diameter and ca. 60 microm in length, were fabricated by one-step radical-mediated dispersion polymerization using 2,2'-azobis(isobutyronitrile) to reduce the silver ions. In this methodology, PVA acted both as a gelato…
Diplatinum alkynyl chromophores as sensitisers for lanthanide luminescence in Pt2Ln2 and Pt2Ln4 (Ln = Eu, Nd, Yb) arrays with acetylide-functionalized bipyridine/phenanthroline
Incorporation of diplatinum complex Pt2(micro-dppm)2(bpyC[triple bond]C)4 or Pt2(mu-dppm)2(phenC[triple bond]C)4 with Ln(hfac)3(H2O)2 (Ln = Nd, Eu, Yb) gave a series of Pt2Ln2 and Pt2Ln4 bimetallic arrays, in which the excitation of d(Pt) -->pi*(R-C[triple bond]C) MLCT absorption induces sensitisation of lanthanide lu…
Synthesis and crystal structure of Li4BH4(NH2)3
The solid solution, (LiNH2)x(LiBH4)(1-x), formed through the reaction of the two potential hydrogen storage materials, LiNH2 and LiBH4, is dominated by a compound that has an ideal stoichiometry of Li4BN3H10 and forms a body-centred cubic structure with a lattice constant of ca. 10.66 A.
The influence of strongly reducing conditions on strong metal–support interactions in Cu/ZnO catalysts used for methanol synthesis
A systematic series of binary and ternary copper catalysts was investigated using the methanol synthesis reaction at atmospheric pressure. Strong metal-support interactions between copper and zinc oxide induced by strongly reducing conditions were probed by the adsorption of carbon monoxide, which was monitored qualit…
Amphiphilic block copolymer micelles for nanoscale drug delivery
Abstract Amphiphilic block copolymers can assemble into supramolecular core‐shell structures, termed ABC micelles, that have proven utility in drug delivery, particularly for drug solubilization. Several examples have entered clinical trials, attesting to the biocompatibility of ABCs and the potential advantages for d…
Hollow carbon spheres with a controllable shell structure
In this work, hollow carbon spheres (HCSs) with smooth single shells, deformed single shells, double shells, and N-doped shells were prepared using silica spheres as templates and benzene as a carbon precursor via chemical vapor deposition (CVD). It was observed that the morphology of the HCSs largely depended on the…