Materials Literature
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Supercapacitor (SC) cells based on microporous titanium carbide-derived carbon [C(TiC)] electrodes in room temperature ionic liquid (1-ethyl-3-methylimidazolium tetrafluoroborate) have been tested by cyclic voltammetry, constant current charge/discharge, and electrochemical impedance methods at temperatures from 25 to…
The enantioselective recognition of 3,4-dihydroxyphenylalanine using penicillamine-modified gold nanoparticles has been investigated. Smaller gold nanoparticles with one enantiomeric ligand facilitate the redox reaction of only one enantiomer of 3,4-dihydroxyphenylalanine, with cross inversion for the gold nanoparticl…
Nitrogen doping of multi-walled carbon nanotubes (CNTs) was achieved by the carbonization of a polyaniline (PANI) coating. First, the CNTs were partially oxidized with KMnO4 to obtain oxygen-containing functional groups. Depending on the KMnO4 loading, thin layers of birnessite-type MnO2 (10 wt% and 30 wt%) were obtai…
Flexible magnetite (Fe3O4) based film electrodes were fabricated by combining facile wet chemistry approaches with a cost-effective spray deposition route. One-dimensional Fe3O4 nanowire and pyrrole treated Fe3O4 nanowire electrodes composed of randomly oriented interpenetrating networks exhibited a high capacitance o…
Cationic zinc complexes of a bis(phosphinimine) pincer ligand have been prepared. Methylzinc and zinc-lactate complexes have been structurally characterized, and the latter is the first cationic metal complex to promote coordination-insertion polymerization of lactide at ambient temperature. This novel catalyst system…
Recent developments in both materials science and printing technologies have led to a rapid expansion in the field of printed conducting polymers. This review provides an overview of the most common printing methods currently in use and the material requirements of each. Examples of printed devices fabricated from a r…
Nanostructured carbons especially carbon nanotubes and carbon nanofibers are Janus materials. As will be shown in this review one side of the Janus face is looking towards industrial applications. The availability of the materials is ever increasing and they can be produced at conditions which should make them profita…
Large quantities of single-crystal iron submicron cubes with controllable dimensions and surface structures were synthesized by a facile low-temperature solution reduction approach under normal atmosphere. The influence of kinetic parameters such as NaOH concentration, reaction temperature, reaction time, species of s…
Multi-walled carbon nanotubes (MWCNT) have won enormous popularity in nanotechnology. Due to their unusual, one dimensional, hollow nanostructure and unique physicochemical properties they are highly desirable for use within the commercial, environmental and medical sectors. Despite their wide application, little info…
Long gold rods were directly grown on a reduced graphene oxide (RGO) surface by seed-mediated and seedless approaches for the fabrication of a novel Raman scattering platform. The Raman scattering signal from RGO was significantly enhanced by 34-fold at the tip of the grown gold rod.
Reaction of Co(NCS)(2) with pyridine (pyr) in aqueous solution at room temperature leads to the formation of the pyridine-rich 1:4 compound of composition [Co(NCS)(2)(pyridine)(4)] (1) reported recently. On heating, the pyridine-rich 1:4 compound transforms into its corresponding pyridine-deficient 1:2 compound of com…
Recently, nanodiamond particles (ND) have emerged as a promising tool in the field of nanobiotechnology. However, studies about the impact of ND on living organisms are still limited to raw materials and primarily confined to in vitro studies. In this work, we investigated the cytotoxicity and in vivo toxicity of ND c…
Cobalt talc nanolayers dispersed in silica aerogel constitute an active nanocomposited material with outstanding catalytic properties for the generation of hydrogen by ethanol steam reforming at low temperature. Delamination of talc particles into individual nanolayers of ca. 1.8 nm thick readily occurs under the refo…
A mild photo-assisted reduction method was developed to fabricate large-area, uniform reduced graphene oxide-TiO(2) films and micropatterns on various substrates in air at room temperature from a composite insulating film of graphene oxide sheets and TiO(2) nanoparticles, with a conductivity (0.5-2 Omega cm) comparabl…
In this study we have revealed that spiropyrans and spirooxazines, which have long been believed to be non-photochromic in the solid state, are generally photochromic in the solid state at least at low temperatures and that their photoreactivity increases greatly as the temperature is lowered.
Well-defined ceria nanocubes covered by oleic acid with exposed {100} facets have been synthesized and exhibited exclusive selectivity for the oxidation of toluene to benzaldehydes in liquid phase by O(2).
A highly processable form of polyaniline was synthesized and used to form pure polyaniline and polyaniline–polysulfone ultrafiltration membranes by nonsolvent induced phase inversion. Blends containing up to 75% polyaniline were 10–20% more permeable than pure polysulfone membranes, while pure polyaniline membranes we…
BACKGROUND: Recent studies have shown the potential suitability of magnesium alloys as biodegradable implants. The aim of the present study was to compare the soft tissue biocompatibility of MgCa0.8 and commonly used surgical steel in vivo. METHODS: A biodegradable magnesium calcium alloy (MgCa0.8) and surgical steel…
Synthesis and characterization of magnetic nanoparticles with excellent size control are showed here. Their functionalization using an amphiphilic polymer is also described. This strategy allows the stabilization of magnetic nanoparticles in aqueous solvents and in addition, the polymer shell serves as a platform to i…
A bifunctional single-component healant, glycidyl methacrylate (GMA), is encapsulated and employed for fabricating self-healing epoxy materials. The released GMA is able to rebond cracked portions at room temperature through hydrogen and covalent bonds, and hence recover fracture toughness with high efficiency. The ma…