Materials Literature
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The molecular dynamics of the discotic liquid crystal pyrene-1,3,6,8-tetracarboxylic tetra(2-ethylhexyl)ester is studied by dielectric relaxation and specific heat spectroscopy. Dielectric spectroscopy shows 3 processes: a β-relaxation at low temperatures and an α-relaxation in the temperature range of the mesophases…
Layered double hydroxides (LDHs) have been studied to a great extent as environmental-friendly complex materials that can be used as photocatalysts or photocatalyst supports. ZnAl layered double hydroxides and their derived mixed oxides were chosen for the investigation of photocatalytic performances in correlation wi…
Abstract—We successfully synthesized hollow AuAg alloyed trian-gular nanoboxes (TNBs) with localized surface plasmon resonances (LSPR) spectra position from visible to NIR region. We then study the surface plasmon properties of AuAg alloyed TNBs and explore their application in surface enhanced Raman scattering (SERS)…
A tandem combinatorial reaction of four acyclic, colorless compounds (two α-aminoketones and two diones; one polar and one nonpolar for each) in aqueous solution (30 mM each, 60 °C, pH 7, 24 h) containing lipid vesicles and with or without quinones and solar illumination affords a distribution of up to 538 porphyrins…
The crystal growth behavior of dendrite-like Cu2O crystals during galvanostatic electrodeposition was investigated. The deposited Cu2O particles are single-phase cuprites and their morphologies change from octahedral in a static electrolyte to dendrites in a stirred electrolyte. The morphology evolution is attributed…
Six 5,5′-azotetrazolate based supramolecular complexes of {[Co(en)3]2(AT)3·3H2O} (1), {[M(en)2(trans-AT)2](trans-H2en)·2H2O} (M = Ni, 2; Cu, 3), {[Ni(en)2(trans-AT)](trans-AT)(trans-H2en)·2H2O} (4), {[Cu(en)2(trans-AT)]·2H2O} (5) and {[Cu(en)2(trans-AT)0.5](trans-AT)0.5} (6) (en = ethylenediamine) have been synthesize…
As a nucleating agent, 1, 3-2, 4-di (p-hydroxyl) benzylidene sorbitol (DHDBS) at mass percents (0.1 wt%, 0.2 wt%, 0.3 wt%, 0.4 wt% and 0.5 wt%) was added into isotactic polypropylene (IPP) matrix by solution/precipitation method and compression-molded method. The crystallization morphology, spherulite dimensions, and…
The crystal structures of an inorganic butane analogue, NH(3)BH(2)NH(2)BH(3) (DDAB), were determined using single crystal X-ray diffraction, revealing both anti and gauche conformations. The anti conformation is stabilized by intermolecular dihydrogen bonds in the crystal whereas two gauche conformations of DDAB obser…
The buckling characteristics of nonideal single‐ and double‐walled carbon nanotubes were studied in this work via molecular dynamics simulation method. An imperfectly straight nonideal single‐walled carbon nanotube (SWCNT) with a bent along the tube axis was used to form an array which is subjected to compression. The…
Novel near infrared-absorbing iron oxide-gold core-shell nanoparticles in pin shapes were synthesized. The nanopins are superparamagnetic, with 35-fold better surface enhanced Raman scattering activities than the conventional core-shell nanospheres and 50-fold greater photothermal properties than solid gold nanorods.…
We have theoretically investigated the electromagnetic radiation excited by a charged particle moving along a semi-infinite space filled with a double-negative metamaterial (DNM). Cherenkov radiation in the double-negative region exhibits reversed or backward radiation behavior. The spectral density of reversed Cheren…
Soft Modes were put forward by Cochran and Anderson about 50 years ago as an explanation of structural phase transitions. Extending Landau's theory of phase transitions, their prediction was that the square of the frequency of the soft mode was proportional to τ = |T/T c-1| where Tc is the transition temperature. Expe…
1Mawson Institute, University of South Australia, Mawson Lakes, SA 5095, Australia 2School of Advanced Manufacturing, University of South Australia, Mawson Lakes, SA 5095, Australia 3Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China 4Institute of Translational Medic…
In this communication we describe a new approach to the fabrication of fluorescent silver/polymer nanohybrids with thermo-switchable metal enhanced fluorescence (MEF). By manipulating a soft polymer spacer between the silver nanoparticles and the fluorophores a tunable MEF was achieved.
Voronoi polyhedra (VP) analysis of mixtures of acetone and methanol is reported on the basis of molecular dynamics computer simulations, performed at 300 K and 1 bar. The composition of the systems investigated covers the entire range from neat acetone to neat methanol. Distribution of the volume, reciprocal volume an…
Pure δ-BiB3O6, which is the polymorph of the most promising nonlinear optical (NLO) crystal α-BiB3O6 (BIBO), was first synthesized at high pressure/high temperature. δ-BiB3O6 possesses a non-centrosymmetric structure and moreover, its three-dimensional (3D) structure rather than 2D in BIBO suggests a high possibility…
Multiwalled carbon nanotubes (MWCNTs) with unique chemical and electromechanical properties are ideal candidates for the development of drug delivery platforms. The scarce knowledge for the effects of exposure to MWCNTs during pregnancy on postnatal outcomes motivated us to investigate whether intraperitoneal injectio…
We present a microscopic theory that describes the ordering of two distinct ligands on the surface of a facetted nanoparticle. The theory predicts that when one type of ligand is significantly bulkier than all others, the larger ligands preferentially align themselves along the edges and vertices of the nanoparticle.…
An Al-doped ZnO (AZO)/F-doped SnO2 (FTO) film structure in an amorphous silicon solar cell (a-Si:H) was studied under exposure to hydrogen (H) plasma treatment via a simple spray pyrolysis. A radio-frequency magnetron sputtering method was used to deposit the FTO film first and the subsequent AZO overlayer on top of t…
We report the theory and synthesis of sub-nanosized gold clusters on reduced graphene oxide (r-GOs). The Au sub-nanoclusters were found to be nucleated and grown at defects of the r-GOs, particularly on nitrogen-induced defects from density functional theory investigation. The resulting Au/r-GOs exhibit an improvement…