Materials Literature
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Bi 1−x La x FeO 3 solid solutions prepared by mechanosynthesis are chemically homogeneous, single phase, highly insulating and demonstrate composition-dependent Néel and Curie transitions.
The effect of Si doping on the stability, electronic structure, and electron transport properties of boron nitride (BN) monolayer has been investigated by density functional theory method. Unique features in the electron transport characteristics consisting of a significant enhancement of current at the Si site, diode…
The effects of the seed reaction conditions on the two‐step seed‐mediated growth of gold nanorods and the effect of gold and reducing agent content in the growth solution were evaluated. Results indicate that the reaction conditions used to produce the seeds have a significant impact on the aspect ratio of the gold na…
One-step conversion of CO and H2 to dimethyl ether (DME) is still challenging to date. This work describes a promising bifunctional Cu/ZnO/H-ZSM5 catalyst prepared by a novel bimetallic sputtering method for such conversions. The sputtered catalyst consisted of well-dispersed Cu–ZnO nanoparticles of about 5 nm, which…
A facile synthetic method has been developed for the formation of Au-Pd core-shell nanocrystals in aqueous solution in just 0.5-2 h at 50 °C with systematic shape evolution from cubic to truncated cubic, cuboctahedral, truncated octahedral, and octahedral structures using octahedral gold cores. By adjusting the amount…
Optically active cinchona alkaloid was anchored onto mesoporous SBA‐16 silica and the as‐prepared complex was used as a heterogeneous chiral ligand of osmium tetraoxide for the asymmetric dihydroxylation of olefins. The prepared catalytic system provided 90–93% yield of vicinal diol with 92–99% enantioselectivity. The…
The photochemical degradation of 2-mercaptobenzothiazole (MBT) and 1,2,3-benzotriazole (BTA) inhibitors was studied in the present work in aqueous and in organic solutions. The extent of photodegradation was assessed by UV-Vis spectroscopy and the main reaction products were identified by tandem electrospray ionizatio…
Tem images (above) and release profiles (below) of encapsulated drug from ormosil nanoparticles with small (orm-s), medium (orm-m) and large (orm-l) sizes.
Water-soluble derivatives of pyrrolopyrrole cyanines (PPCys) have been synthesized by a post-synthetic modification route. In highly polar media, these dyes are excellent NIR fluorophores. Labeling experiments show how these novel dyes are internalized into mammalian cells.
A surface enhanced Raman scattering (SERS) substrate, capable of extracting small amounts of organic species from surfaces of different types of materials with variable roughness, has been fabricated. The substrate consists of Ag NPs encapsulated in poly(vinyl alcohol) (PVA) hydrogels, commonly known as PVA "slime". U…
Au-SnO2 hybrid nanospheres (HNSs) were synthesized by a facile, one-step method, which was achieved via a redox reaction between the reductive stannous (II) ions and oxidative auric (III) ions and dissolved O2, and then in situ formation of Au nanoparticles (NPs) and SnO2 NPs. The results indicated that the Au NPs are…
We report the detailed structural characterization and magnetic investigation of nanocrystalline zinc ferrite nanoparticles supported on a silica aerogel porous matrix which differ in size (in the range 4-11 nm) and the inversion degree (from 0.4 to 0.2) as compared to bulk zinc ferrite which has a normal spinel struc…
Alumina sol-gel matrices emerge in this study as very interesting biocompatible superior materials for entrapment and stabilization of enzymes. Three therapeutic enzymes were selected for this study: acid phosphatase (AcP) which is used for treatment of bone dysplasia; a peroxidase (HRP), used for release of toxic dru…
Mesoporous carbon materials were synthesized employing polymers and silica gels as structure directing templates. The basic physico-chemical properties of the synthetic mesoporous materials were characterized by (1)H and (13)C MAS solid-state NMR, X-ray diffraction, transmission electron microscopy (TEM) and nitrogen…
The solid-liquid interface, which is ubiquitous in nature and our daily life, plays fundamental roles in a variety of physical-chemical-biological-mechanical phenomena, for example in lubrication, crystal growth, and many biological reactions that govern the building of human body and the functioning of brain. A surge…
In this research, Al-air battery based on Al−0.5 Mg−0.02 Ga−0.1 Sn−0.5 Mn anode with industrial 2N8 aluminum was prepared, the corrosion behavior and the battery performance were investigated in 2 molL −1 NaCl, 4 molL −1 NaOH, 4 molL −1 NaOH + 0.2 molL −1 ZnO, 7 molL −1 KOH and 7 molL −1 KOH + 0.2 molL −1 ZnO solution…
A novel protein based fluorophore for sensitive, selective and fast detection of picric acid in an aqueous phase due to electron transfer, Förster resonance energy transfer and electrostatic interactions.
Large-sized sodium potassium niobate lead-free single crystals were successfully grown by a top seeded solution growth technique (TSSG).
A new polyoxomolybdate-based hybrid platform TBA4[PMo11O39{Sn(p-C6H4I)}] is reported. The presence of a post-functionalisable iodo-aryl moiety allows the grafting of a ferrocenyl moiety onto the POM. The electrochemical characterisation shows the effect of molybdenum on the electron reservoir properties of POM-based h…
We report systematic investigations on structural, magnetic and optical properties of NiO nanoparticles prepared by mechanical alloying. As-milled powders exhibit face centred cubic structure, but average particle size decreases and effective strain increases for the initial periods of milling. Lattice volume increase…