Materials Literature
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Double emulsions are valuable structures that consist of drops nested inside bigger drops; they can be formed with exquisite control through the use of droplet-based microfluidics, allowing their size, composition, and monodispersity to be tailored. However, only little control can be exerted on the morphology of doub…
The seminal discovery that an ideal negative-index lens may overcome Abbe's diffraction limit has raised enormous interest in the field of metamaterials and of subwavelength focusing. This finding is based on the anomalous wave propagation in ideally isotropic and homogeneous metamaterials with negative index of refra…
The electronic band structure variations of single-walled carbon nanotubes (SWCNTs) using Huckle/tight binding approximation theory are studied. According to the chirality indices, the related expressions for energy dispersion variations of these elements are derived and plotted for zigzag and chiral nanotubes.
CuPt nanorods, originally nonpolar, were modified by ligand exchange to become soluble in water. Three different CuPt nanorods with aspect ratios (ARs) of 1, 6, and 11 were produced with high monodispersity by a thermal decomposition method and a subsequent purification process. The synthesized nanorods were initially…
Suspensions containing quaternized poly(pyridylacetylene) (PPyA) and AgX (X = Br and I) were obtained by simply mixing PPyA with water soluble silver salts. The suspensions were stable in the dark at room temperature, and could be cast into uniform films. After exposure to UV-light for sufficient time, Ag nanoparticle…
Gas-phase action spectroscopy shows unambiguously that the low-energy absorptions by tetramethylthiotetrathiafulvalene and tetrathianaphthalene cations in solution phase are due to monomers and not π-dimers.
By introducing the flexible ligands 3- or 4-pyridylacrylic acid into the Anderson-type polyoxometalate system, three new hybrid frameworks were obtained: [(3-Hpya)2Na][(3-Hpya)2Mn(H2O)2][CrMo6H6O24]·4H2O 1 (3-Hpya = 3-(3-pyridyl)acrylic acid), α-(4-Hpya)2{[(4-Hpya)2(H2O)3Mn]2[(H2O)4Mn(CrMo6H6O24)2]}·12H2O 2-α, β-(4-Hp…
Molten salts have been reported to be excellent media for preparation of crystals with special morphology. Via the molten salt synthesis (MSS) route, well defined octahedral CoFe2O4 crystals with the side length of about 0.5–1.5 μm were obtained in a series of molten salt systems, using superfine CoFe2O4 particles pre…
The corrosion inhibition of mild steel by miconazole nitrate, an antifungal drug has been investigated using potentiodynamic polarization, electrochemical impedance spectroscopy technique, and weight loss methods. The experimental results suggested miconazole nitrate is a good corrosion inhibitor for mild steel in 1 M…
Peptide self-assembling materials have recently emerged as one of the most promising biomaterials. In this study, we synthesized three amphipathic cyclopeptides (CPs1–3) with systematically modified side chains to control the morphologies of self-assembly. Owing to the varying modifications of the side chains, various…
A series of water-soluble and cationic methoxy poly(ethylene glycol)-b-poly(γ-amino-ε-caprolactone) (mPEG-b-PACL) has been synthesized via ring opening polymerization of γ-(carbamic acid benzyl ester)-ε-caprolactone (γCABεCL) using mPEG as a macroinitiator and Sn(Oct)2 as a catalyst, and subsequent hydrolysis of the C…
We show evidence of the manifestation of enormous metal-insulator switching ranging up to almost six orders of magnitude in individual nanowires of β'-Cu(x)V(2)O(5). The magnitude and temperature of the phase transition is in strong contrast to data reported over several decades for other Wadsley-type mixed valence tu…
Conventionally used vascular grafts such as polyester (Dacron) or expanded polytetrafluoroethylene perform inadequately as small-diameter vascular bypass grafts (SDBGs). SDBGs, which can maintain long-term patency and those that could potentially evolve with the somatic growth, are highly desirable in vascular surgery…
We present a simple and versatile mechanism for the reversible photoswitching of dye-doped core-shell nanoparticles. Photochromic dithienylethenes are incorporated into the outer shell, close enough to the dyes entrapped in the core to efficiently quench them by energy transfer when photoconverted with UV light. The e…
Fabrication of nanostructured ZnO thin films is a critical process for many applications based on semiconductor devices. So on understanding of the electrochemical deposition mechanism is also fundamental for knowing the optimal conditions on growth of ZnO nanorods by electrodeposition. In this paper the electrochemic…
Stimuli-responsive biocompatible nanocarriers are very promising for controlled drug release. Here, we report redox- and temperature-responsive biocompatible nanocapsules prepared by growing a temperature-responsive biocompatible shell from 3-(trimethoxysilyl)propyl methacrylate-modified silica nanoparticles (SiO2-MPS…
Graphene in suspension undergoes stirring-induced aggregation that leads to reversible agglomeration and folding/scrolling, all of which affects the Raman spectra; the findings are of importance in all solution-based protocols for graphene preparation and processing.
The objective of this study was to develop a hermetical alkali digestion process to obtain single cellulosic fibers from kenaf bast. Kenaf bast were hermetically digested into single fiber using a 5% sodium hydroxide solution for one hour at four different temperatures (80 ° C, 110 ° C, 130 ° C, and 160 ° C). The herm…
We have developed a theoretical platform for modelling temperature-dependent exciton transport in organic materials, using indenofluorene trimers as a case study. Our atomistic molecular dynamics simulations confirm the experimentally observed occurrence of a liquid crystalline smectic phase at room temperature and pr…
The thermodynamic and electrical characteristics of the NdBaCo 2 O 5+ δ (NBCO) have been studied as a competitive candidate of cathode material for intermediate-temperature solid oxide fuel cells (IT-SOFCs). NBCO has got extensive attention because it shows rapid oxygen diffusion, fast surface exchange kinetics, and h…