Materials Literature
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A new form of carbon-nanotube (CNT) material, CNT cotton, which is analogous to conventional cotton in many aspects including the color and fluffiness, is synthesized (see figure). The cotton is composed of ultralong individual CNTs and exhibits excellent hydrophobicity. This form of CNT material shows great potential…
We show that the phase diagram of the (001) $\mathrm{Pb}{\mathrm{Mg}}_{1∕3}{\mathrm{Nb}}_{2∕3}{\mathrm{O}}_{3}\ensuremath{-}x{\mathrm{PbTiO}}_{3}$ (PMN-$x$PT) ($x=0.00$, 0.06, 0.13, and 0.24) and (111) PMN-0.24PT lead-magnesium niobate mixed with lead titanate possesses a quasivertical line in the $E$ electric field -…
The purpose of this study was to construct a flowmeter that could accurately measure the hydraulic permeability of electrospun fibrinogen scaffolds, providing insight into the transport properties of electrospun scaffolds while making the measurement of their topographical features (fiber diameter and pore size) more…
Preface to the Second Edition. Preface to the First Edition. Contributors. 1. Formulation Development (Edward J. Wickson and Richard F. Grossman). 2. Resin Selection for PVC Applications (Paul Kroushl). 3. PVC Special Products (J. R. Goots, Michael P. Moore, Kenneth B. Szoc, Richard J. Burns, and James H. Bly). 4. Ant…
In tissue engineering, rapid ingrowth of blood vessels into scaffolds is a major prerequisite for the survival of three-dimensional tissue constructs. In the present study, we investigated whether the vascularization of implanted poly-D,L-lactic-co-glycolic acid (PLGA) scaffolds may be accelerated by incorporation of…
We report on an element-dependent critical size for argon physisorption at 80 K on transition-metal-doped silicon clusters. Argon does not attach to elemental silicon clusters but only to surface-located transition-metal atoms. Thus physisorption provides structural information. Specifically, the minimal cluster size…
We report an efficient synthesis of chiral (2S)-ethylhexanol for functionalizing and solubilizing conjugated polymers. The alpha-substituted chiral ethylhexyl side chains were obtained through a powerful and flexible asymmetric synthesis using pseudoephedrine as a chiral auxiliary. The dependence of the properties of…
Single-crystal high-frequency electron paramagnetic resonance spectroscopy has been employed on a truly axial single molecule magnet of formula [Mn(12)O(12)(tBu-CH(2)CO(2))16(CH(3)OH)4].CH(3)OH to investigate the origin of the transverse magnetic anisotropy, a crucial parameter that rules the quantum tunneling of the…
In the free-energy landscape picture of glassy systems, their slow dynamics is due to a complicated free-energy landscape with many local minima. We show that for a colloidal glassy material multiple paths can be taken through the free-energy landscape. The evolution of the nonergodicity parameter shows two distinct m…
Thin films of pure-nickel-based hydrotalcite-like compounds have been deposited on a Pt electrode by electrosynthesis. The best films have been obtained by cathodic reduction of a 0.03 M solution of Ni and Al nitrates in different molar ratios. The films, obtained in different experimental conditions, have been charac…
At the interior of a ca. 5 nm-sized self-assembled coordination sphere, 24 amino acids (or peptides) are lined to generate chirality-confined protein-mimic cavities, whose structures are well-characterized by spectroscopy and X-ray analysis.
Arterial extraction of quantum dots (QD) assayed by fluorescence or inductively coupled plasma (ICP) emission spectrometry were studied after infusion into isolated perfused skin. Extraction was mathematically modeled using three linear differential equations. COOH-coated QD had greater tissue deposition, assessed bot…
In recent years, research efforts in the field of ordered mesoporous materials are shifting towards either hybrid materials, containing both inorganic (typically silica) and organic functionalities, or towards variants that do not contain silica at all. Promising examples of hybrid materials are periodic mesoporous or…
We investigate linear theories of incompatible micromorphic elasticity, incompatible microstretch elasticity, incompatible micropolar elasticity and the incompatible dilatation theory of elasticity (elasticity with voids). The incompatibility conditions and Bianchi identities are derived and discussed. The Eshelby str…
We present a new generation of nano-electromechanical systems (NEMS), which are realized by doping the semiconductor base material. In contrast to the traditional approach these doped NEMS (D-NEMS) do not require a metallization layer. This makes them far lighter and hence increases resonance frequency and quality fac…
Triangular-layered NiGa2S4, contrary to intuitive expectation, does not form a noncollinear antiferromagnetic structure, as do isoelectronic NaCrO2 and LiCrO2. Instead, the local magnetic moments remain disordered down to the lowest measured temperature. To get more insight into this phenomenon, we have performed firs…
Abstract Recent increases in the demand for mobile devices have stimulated the development of nonvolatile memory devices with high performance. In this Communication, we describe the fabrication of low‐cost, high‐performance, digital nonvolatile memory devices based on semiconducting polymers, poly( o ‐anthranilic aci…
Single crystals of V2AlC and the new carbides V4AlC3-x and V12Al3C8 were synthesized from metallic melts. V2AlC was formed with an excess of Al, while V4AlC3-x (x approximately 0.31) and V12Al3C8 require the addition of cobalt to the melt. All compounds were characterized by XRD, EDX, and WDX measurements. Crystal str…
The electrochemistry of the corrosion process of a magnesium rare-earth-alloy is studied in detail in simulated body fluid (m-SBF) over the first 5 days. The aim is to investigate the corrosion mechanism under in vitro conditions. For this purpose we also used electrolytes that contain only some of the components of S…
Abstract Nanosized Janus particles were prepared by ligand exchange reactions of a Langmuir monolayer of hydrophobic alkanethiolate‐passivated gold nanoparticles at relatively high surface pressures with hydrophilic thiol derivatives injected into the water subphase. The ligand intercalation between adjacent particles…