Materials Literature
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Highly optically transparent ceramics of (1− x ) Pb ( Mg 1/3 Nb 2/3 ) O 3 – x Pb ( Zr 0.53, Ti 0.47 ) O 3 ( PMN – PZT ) were fabricated by a two‐stage sintering method without La‐modification. The ceramics exhibited high optical transparency (64% at 1500 nm) for visible and near infrared wavelength. The ferroelectric…
Abstract Effect of different concentrations of sepiolite on thermal and rheological properties of linear low‐density polyethylene/starch blend was investigated. Vinyl trimethoxy silane was used as compatibilizing and crosslinking agent. The composites were produced by peroxide‐initiated melt mixing technique. Improved…
Towards the goal of development of a generic nanomaterial delivery system and delivery of the 'as prepared' nanoparticles without 'further surface modification' in a generic way, we have fabricated a hybrid polymer capsule as a delivery vehicle in which nanoparticles are loaded within their cavity. To this end, a gene…
Europium-doped lanthanum oxide (5 mol % Eu(3+):La(2)O(3)) was prepared by calcining europium-doped lanthanum hydroxide (5 mol % Eu(3+):La(OH)(3)) previously synthesized by a simple hydrothermal method. Interestingly, we observed different emission Eu(3+) signatures depending on the phase of the host (lanthanum oxide o…
ADVERTISEMENT RETURN TO ISSUEEditorialNEXTAdvances at the Frontiers of Photochemical SciencesMiguel A. Garcia-GaribayCite this: J. Am. Chem. Soc. 2012, 134, 20, 8289–8292Publication Date (Web):May 23, 2012Publication History Published online23 May 2012Published inissue 23 May 2012https://pubs.acs.org/doi/10.1021/ja301…
We investigate the structural transitions in a polymer induced by spherical and nonspherical crowding particles over a wide range of conditions. The polymer conformations are specified by the radius of gyration and the quality of the solvent in the absence of crowding particles. In the presence of crowding particles,…
Abstract Biodegradable polymer composites, typically based on biodegradable polymer matrices and natural‐organic fillers, are gaining rising interest and importance over the last few years. Several natural‐organic fillers can be used but the most widespread so far is wood, in the form of fibres or flour. Alternative c…
Geladene kolloidale Goldnanopartikel (AuNPs) können abhängig von der Temperatur in wässriger Lösung aggregieren und deaggregieren und zeigen eine Plasmonenkopplung, die reversibel und thermoresponsiv abgestimmt werden kann. Das reversible Abstimmen geschieht durch die Manipulation der elektrostatischen Wechselwirkung…
The nature of the interfacial structure between the core and the arms of a tetrapod quantum dot (QD) formed during the heteroepitaxial growth of a ZnS arm onto a CdSe core is not well understood but can be analyzed through the use of high-frequency electron paramagnetic resonance (HF-EPR) spectroscopy. The spectroscop…
Biominerals such as bones, teeth and seashells, very often have advanced material properties and are a source of inspiration for material chemists. As in biological systems acidic proteins play an important role in regulating the formation of CaCO3 biominerals, we employ poly(amino acid)s to mimic the processes involv…
A graphene nanoribbon with armchair edges is known to have no edge state. However, if the nanoribbon is in the quantum spin Hall state, then there must be helical edge states. By folding a graphene ribbon into a ring and threading it by a magnetic flux, we study the persistent charge and spin currents in the tight-bin…
With a range of desirable mechanical and optical properties, single wall carbon nanotubes (SWCNTs) are a promising material for nanobiotechnologies. SWCNTs also have potential as biomaterials for modulation of cellular structures. Previously, we showed that highly purified, dispersed SWCNTs grossly alter F-actin insid…
The 2.7 μm emission properties of Er(3+)/Nd(3+)-codoped fluorotellurite glasses were investigated in the present work. The thermal stability, refractive index, absorption and transmission spectra, and emission spectra were measured and investigated. The 2.7 μm emission in Er(3+)/Nd(3+)-codoped fluorotellurite glasses…
Abstract Although sub‐diffraction‐limit‐resolution optical imaging has been attained via superlenses in the UV regime, the corresponding resist profile in general exhibits a very poor contrast, far below the minimum requirement for photolithography. Here, it is experimentally demonstrated thin flat silver superlenses,…
The prevalence of cardiovascular disease and the limited availability of suitable autologous transplant vessels for coronary and peripheral bypass surgeries is a significant clinical problem. A great deal of progress has been made over recent years to develop biodegradable materials with the potential to remodel and r…
Abstract Single‐walled carbon nanotubes (SWCNTs) dispersed in N ‐methylpyrrolidone (NMP) were functionalized by addition of polystyryl radicals from 2,2,6,6‐tetramethyl‐1‐piperidinyloxy‐ended polystyrene (SWCNT‐ g ‐PS). The amount of polystyrene grafted to the nanotubes was in the range 20‐25 wt% irrespective of polys…
Fluorescence behavior was examined for fluorophore-labeled protein (BSA-AF) adsorbed on the nanopore surface of a nanoporous waveguiding film. The waveguiding film has a bilayer structure of a porous anodic alumina (PAA) layer on a metallic aluminum (Al) layer, and this structure allows efficient interaction of fluoro…
We analyze theoretically complete wetting of a substrate supporting an array of parallel, vertical plates which can tilt elastically. The adsorbed liquid tilts the plates, inducing clustering, and thus modifies the substrate geometry. In turn, this change in geometry alters the wetting properties of the substrate and,…
Abstract In this study, free radical copolymerization of acrylonitrile (AN)–vinyl acetate (VAc) was performed for five different feed ratio of VAc (wt %) by using ammonium persulfate (APS) in the aqueous medium. The effect of VAc content on the spectrophotometric and thermal properties of AN–VAc copolymers was investi…
We report detailed studies of the upper critical field and low-temperature specific heat in the two-gap superconductor Lu${}_{2}$Fe${}_{3}$Si${}_{5}$. The anisotropy of the upper critical field suggests that the active band is quasi-one-dimensional. Low-temperature specific heat in magnetic fields reveals that the vir…