Materials Literature
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The surface science approach to catalysis, pioneered by 2007 Nobel Laureate in chemistry Gerhard Ertl, has helped revolutionize our understanding of heterogeneous catalysis at the atomic level. In this tutorial review we show how the scanning tunnelling microscope (STM), in combination with this surface science approa…
The discoveries that supported gold nanoparticles are exceptionally efficient catalysts for a whole range of reactions is one of the most surprising revelations in the recent history of chemistry. For many years gold was considered too noble to be chemically interesting. However, when divided to the nano-scale, small…
NiO nanostructured films were synthesized by hydrothermal and electrodeposition methods at different deposition temperatures. Films fabricated by different methods had similar crystalline structures, but different morphologies. The electrochemical properties of the NiO films were studied by cyclic voltammetry (CV) and…
Dithienylperhydrocyclopentene-bisurea-based low molecular weight gelators are described that function as photoresponsive organogels that show a remarkable gel-to-liquid transition upon irradiation. The two series of derivatives, with and without alkyl spacers between the urea hydrogen bonding groups and the photochrom…
BACKGROUND: Particulate systems are well known to be able to deliver drugs with high efficiency and fewer adverse side effects, possibly by endocytosis of the drug carriers. On the other hand, cationic compounds and assemblies exhibit a general antimicrobial action. In this work, cationic nanoparticles built from drug…
We have exploited the selectivity of neutron scattering combined with isotopic substitution to study the structure and dynamics of poly(n-alkyl methacrylates). Our diffraction data strongly support the suggested nanosegregation of main-chains and side groups. Moreover, we have been able to separately follow the dynami…
This paper describes work to study oxidation and hot corrosion damage in nickel disc alloy RR1000. Oxidation damage has been characterised via mass change data from thermogravimetric analyses at temperatures from 700 to 800 C and cyclic oxidation testing at 700 and 750 C. Thin oxide scales rich in Cr and Ti have been…
Metal ion coordination in discrete or extended metallo-supramolecular assemblies offers ample opportunity to fabricate and study devices and materials that are equally important for fundamental research and new technologies. Metal ions embedded in a specific ligand field offer diverse thermodynamic, kinetic, chemical,…
NaAlH(4) is the archetypical complex hydride for hydrogen storage. The extraordinary effect of dopants on the sorption kinetics triggered the investigation of this empirical finding. In this paper, a short review of the state of the art is given. To gain further understanding of the mechanisms involved we label the in…
Novel amine- and ammonium-terminated carbosilane dendrimers of type G(n)-[Si{CH(2)O-(C(6)H(4))-3-NMe(2)}](x) or G(n)-[Si{CH(2)O-(C(6)H(4))-3-NMe(3)(+)I(-)}](x) have been synthesized and characterized up to second generation by phenolysis of (chloromethyl)silyl-terminated dendrimers with 3-dimethylamine phenol and subs…
The effects of cold work on the pitting corrosion resistance of a nickel-free high-nitrogen stainless steel in chloride solution have been investigated by electrochemical tests, surface chemical analysis, immersion tests, and microscopic observations. Potentiodynamic polarization revealed that pitting resistance was d…
We present a study using plasmonic nanoparticles (NPs) to image epidermal growth factor receptor (EGFR) in live cells. Through detailed analysis of the NP scattering spectra, we determine the intracellular refractive index (RI) within attoliter volumes inside of the living cells. Molecular imaging is demonstrated usin…
In this study, the adhesion properties of adhesives and paints on wood–plastic composites (WPCs) after plasma treatment at atmospheric pressure and ambient air were investigated. Surface energy determination by means of contact angle measurements according to the Owens–Wendt approach and atomic force microscopy to det…
Coral-like porous Mg–Al layered double hydroxide (LDH) microspheres have been synthesized for the first time in a nonaqueous polar solvent/surfactant system of EG (ethylene glycol)/methanol/DS (dodecyl sulfate) via a one-pot method. The mechanism of forming the unique LDH structure was investigated. It has been found…
Understanding how the electronic structures of electron donor-bridge-acceptor (D-B-A) molecules influence the lifetimes of radical ion pairs (RPs) photogenerated within them (D+*-B-A-*) is critical to designing and developing molecular systems for solar energy conversion. A general question that often arises is whethe…
Zinc oxide/carbon (ZnO/C) composite is synthesized by self-propagating solution combustion method using dextrose as fuel and carbon source. By this method, carbon is added in-situ to the metal oxide. The powders are characterized by XRD, SEM, CHNS analysis and cyclic voltammetry. Electrochemical capacitive behavior of…
4 Abstract: Methanol and aqueous extract of leaves of Calotropis procera Linn. were subjected to the potential antioxidant and antibacterial activities. The antioxidant potential of the methanolic extract was determined on the basis of their scavenging activity of the stable 1,1-diphenyl-2-picryl hydrazyl (DPPH) free…
BACKGROUND: Angiogenesis is a critical early feature of atherosclerotic plaque development and may also feature prominently in the pathogenesis of aortic valve stenosis. It has been shown that MRI can detect and quantify specific molecules of interest expressed in cardiovascular disease and cancer by measuring the uni…
Flexible porous nanoflake films were prepared by galvanostatic electrodeposition on lightweight and inexpensive stainless steel mesh. The as-prepared porous nanoflake films were characterized by X-ray diffraction, thermogravimetric analysis, and scanning electron microscopy. Electrochemical tests including cyclic volt…
Nephrogenic fibrosing dermopathy/nephrogenic systemic fibrosis (NFD/NSF) is a recently recognized systemic fibrosing disorder that develops in the context of renal insufficiency. Its predominant manifestation is severe cutaneous fibrosis, often causing disabling contractures of neighboring joints. No therapy is consis…