Materials Literature
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Two cationic iridium(III) complexes with bright green and red emissions were demonstrated as phosphorescent dyes for living cell imaging. In particular, their exclusive staining in cytoplasm, low cytotoxicity and reduced photobleaching, as well as cell membrane permeability, make the two complexes promising candidates…
CdSe quantum dots have been encapped with aromatic ligands: α-toluenethiol, thiophenol, and p-hydroxythiophenol to enhance the photoluminescence (PL) quenching and photoelectric properties of the quantum dots. The aromatic ligand capped CdSe quantum dots are prepared through ligand exchange with trioctylphosphine oxid…
Epitaxial graphene on Ru(0001) was studied by means of large-scale density functional theory (DFT) calculations. The results agree well with scanning tunneling microscopy experiments. In contrast to the current understanding, we show that the measured corrugation originates mainly from a geometric buckling of the grap…
Nanotechnology is emerging as a field of applied science and technology. Synthesis of nanoparticles is done by various physical and chemical methods but the biological system is gaining attention as an eco-friendly technique. The biosynthetic method employing plant parts is proving as a simple and cost-effective metho…
In this study, the cellulose crystals, prepared by acid hydrolysis of flax fiber, consisted of slender rods with lengths ranging from 100 to 500 nm and diameters ranging from 10 to 30 nm, respectively. After mixing the suspension of flax cellulose nanocrystals (FCNs) and plasticized starch (PS), the nanocomposite film…
A mechanistic study of electrocatalytic oxidation of formic acid on Pd in sulfuric and perchloric acids is reported. Surface-enhanced infrared absorption spectroscopy in the attenuated total reflection mode (ATR-SEIRAS) shows the adsorption of CO, bridge-bonded formate, bicarbonate, and supporting anions on the electr…
Copper nanoparticles have been prepared by the solvated metal atom dispersion (SMAD) method. Oxidation of the SMAD prepared copper colloids resulted in Cu@Cu(2)O core shell structures (7.7 +/- 1.8 nm) or Cu(2)O nanoparticles depending on the reaction conditions. The nano Cu, Cu@Cu(2)O core shell, and Cu(2)O particles…
Single crystalline copper oxide nanoribbons were synthesized via a surfactant-assisted hydrothermal route. The resulting CuO nanoribbons contain substantial amounts of nanorings and nanoloops. High resolution TEM analysis identified CuO nanoribbons growing along the [010] direction. CuO nanoribbons exhibited excellent…
A new synthetic procedure to make the condensed phase hydrogen storage material, ammonia borane (NH3BH3, abbreviated as AB), is described and compared with previous literature procedures. Ammonia borane with a gravimetric density ca. 194 gm H2 kg−1 and a volumetric density ca. 146 H2 litre−1, is a promising chemical h…
\n Contains fulltext :\n 72423.pdf (Author’s version preprint ) (Open Access)\n \n Contains fulltext :\n 72423.pdf (Publisher’s version ) (Open Access)\n
Application of Raman spectroscopy to analyse carbon nanotubes has been presented. Having a mixture of various carbon nanotube samples, one can easily distinguish, in a quick experiment, presence of singlewalled, doublewalled and multiwalled carbon nanotubes (SWCNT, DWCNT, MWCNT, respectively). The so-called G-line is…
We review a new concept for modifying the redox properties of transition metals via confinement within the channels of carbon nanotubes (CNTs), and thus tuning their catalytic performance. Attention is also devoted to novel techniques for homogeneous dispersion of metal nanoparticles inside CNTs since these are essent…
An in situ scanning vibrating electrode technique (SVET) is used to investigate localized corrosion occurring on unpolarized magnesium (Mg) samples immersed in aqueous sodium chloride electrolyte. Corrosion is characterized by the appearance of circular, blackened areas which expand radially at a constant rate and evo…
Barium titanate is the first ferroelectric ceramics and a good candidate for a variety of applications due to its excellent dielectric, ferroelectric and piezoelectric properties. Barium titanate is a member of a large family of compounds with the general formula ABO3 which is called perovskite. Barium titanate can be…
Chemical Vapour Deposition (CVD) involves the deposition of thin solid films from chemical precursors in the vapour phase, and encompasses a variety of deposition techniques, including a range of thermal processes, plasma enhanced CVD (PECVD), photon- initiated CVD, and atomic layer deposition (ALD). The development o…
Diamond nanoparticles are another form of carbon nanomaterials with unique properties and applications. This article discusses the progress made in the production, characterisation and functionalisation of this material. The surface structure of nanodiamond allows for the investigation of chemical modifications of the…
Bisthienylethenes (BTE) are one of the most promising families of photochromic compounds used in molecular switches because of their fatigue resistance and thermally irreversible properties. Moreover, such molecular switches hold tremendous potential applications in molecular electronic and photonic devices such as op…
Electrospinning was used to fabricate non-woven nanofibrous tubular scaffolds from Bombyx mori silk fibroin using an all aqueous process. Cell studies and mechanical characterization tests were performed on the electrospun silk tubes to assess the viability of their usage in bioengineering small-diameter vascular graf…
Nanoparticles have found wide spread application in varied fields of engineering. Recently, core/shell nanostructures have been found to have improved properties when compared to their other alternatives are patented. These core/shell structures also interest researchers in the field of biomedical engineering and some…
The aim of this paper is to report the optical properties of phosphor prepared by wet chemical etching of Si wafers in a mixed solution. The luminescence centers of sharp red emission at are ascribed to the ions in the octahedral site of gained by the activation of local vibration modes . All the expected electronic a…