Materials Literature
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In this paper, we report a method of biomimetic synthesis of MgCO(3)·3H(2)O and MgO Viburnum opulus-like complex nanostructures with superhydrophobicity and adsorption properties. The MgCO(3)·3H(2)O complex nanostructures can be obtained by changing experimental parameters, including concentrations of reactants (dextr…
Polymer–clay nanocomposite (PCN) foams represent an important class of new materials in structural engineering, biomedical fields and packaging. This paper reports the relative modulus–relative density relationship, a crucial correlation in cellular solids, for low-density PCN foams. Polyurethane (PU)–natural clay nan…
Using first-principles density functional calculations, magnetically induced currents are obtained for zigzag single-walled carbon nanotubes. Clear differences and trends in current flow are observed between the different nanotube families. In particular, for a magnetic field applied along the tube axis, the current r…
In this report, we present Raman spectroscopy investigation of the thermal stability and dynamics of graphene edges. It is found that graphene edges (both armchair and zigzag) are not stable and undergo modifications even at temperature as low as 200 °C. On the basis of polarized Raman results, we provide possible str…
A series of supramolecular binary hydrogels based on tetra-proline modified calix[4]arenes and basic amino acids (arginine, histidine and lysine) were constructed in acidic condition. The obtained results show that different amino acids lead to distinguishable backbones of hydrogels, which were identified by the combi…
Polymer-based nanotechnologies are proposed to be an alternative for drug administration, delivery and targeting to those of conventional formulations. The blood brain barrier is frequently a rate-limiting factor in determining permeation of a drug into brain. In this study, the surface-engineered long-circulating PLG…
Filled skutterudites are high-performance thermoelectric materials and we show how their phonon conductivity is greatly influenced by the topology of the filler species. We predict (ab initio) the phase diagram of Ba(x)Co4Sb12 and find several stable configurations of Ba ordering over the intrinsic voids. The phonon c…
In this study we demonstrate the sensitivity of fibrillar self-assembly and gelation of aromatic peptide amphiphiles to different modes of mechanical agitation. In particular, we show how different homogenization techniques (vortex vs. manual or orbital agitation) during the gelation process can dramatically influence…
In recent years it has become widely accepted that a dynamical length scale ξ(α) plays an important role in supercooled liquids near the glass transition. We examine the implications of the interplay between the growing ξ(α) and the size of the crystal nucleus, ξ(M), which shrinks on cooling. We argue that at low temp…
The relationship between the electrical properties and structure evolution of single layer graphene was studied by gradually introducing the gallium ion irradiation. Raman spectrums show a structural transition from nano-crystalline graphene to amorphous carbon as escalating the degree of disorder of the graphene samp…
We have fabricated a charge-transfer system using the self-assembly method. We find the nontotally symmetric b(2) modes are selectively enhanced in SERS spectroscopy and represent a laser wavelength-dependent property.
The shear response of the $\ensuremath{\Sigma}9⟨110⟩{221}$ symmetric tilt grain boundary (GB) in three fcc metals Cu, Al, and Ni has been studied by atomistic simulation methods with the embedded atom method for interatomic potentials and with a bicrystal model. By applying an energy minimization procedure, it was fou…
A few of excited state intramolecular proton transfer (ESIPT) compounds have been discovered for their aggregation induced emission enhancement (AIEE). To understand the AIEE mechanism, an ESIPT compound BTHPB (N-(4-(benzo[d]thiazol-2-yl)-3-hydroxyphenyl)benzamide) with simple structure was designed and synthesized. B…
The thermodynamic, structural and electronic properties of Cu–CeO \documentclass[12pt]{minimal}\begin{document}$_2$\end{document}2 (ceria) surfaces and interfaces are investigated by means of density functional theory (DFT+U) calculations. We focus on model systems consisting of Cu atoms (i) supported by stoichiometri…
A detailed study is presented on the formation of MoO(2) nanoparticles from the dissolution of the precursor to the final rodlike product, with a focus on the exploration of the inorganic reaction occurring ahead of the nucleation step, and interplay between size and crystal structure of MoO(2). In situ X-ray absorpti…
Engineered metalloproteins constitute a flexible new class of analyte-sensitive molecular imaging agents detectable by magnetic resonance imaging (MRI), but their contrast effects are generally weaker than synthetic agents. To augment the proton relaxivity of agents derived from the heme domain of cytochrome P450 BM3…
We perform an analytical renormalization group (RG) study to address the role of Coulomb repulsion, the competition between extended $s$-wave superconducting order $(s\ifmmode\pm\else\textpm\fi{})$, and the spin-density wave (SDW) order and the angular dependence of the superconducting gap in multipocket models of iro…
Nanoplatelet Co−Al layered double hydroxides (LDHs) {Co 1.8 Al 1.1 (OH) 6 (DDS) x · y H 2 O (DDS = dodecyl sulfate; x ≈ 0.9; y = 2−6)} have been prepared using a homogeneous precipitation approach in water pools formed by a water-in-oil reverse microemulsion. The size of the LDH particles is controlled by adjusting th…
Raman scattering enhancement was observed in systems where different metal oxide semiconductors (TiO 2, Fe 2 O 3, ZrO 2, and CeO 2 ) were modified with enediol ligands. The intensity of Raman scattering was dependent on laser frequency and correlated with the extinction coefficient of the CT complex of the enediol lig…
Metal-semiconductor-metal structured ultraviolet (UV) photodetector has been fabricated from zinc oxide films. The responsivity of the photodetector can reach 26 000 A/W at 8 V bias, which is the highest value ever reported for a semiconductor ultraviolet photodetector. The origin of the high responsivity has been att…