Avocet lines up new deal

Article Abstract:

Avocet Mining is to acquire a tungsten mine from a proposed rights issue. Inmet Mining aims to sell a subsidiary, Wolfram Bergbau, which operates an Austrian mine, for some 50 million Canadian dollars. Production of tungsten is less than supply, and stocks are being used to meet demand. Avocet's rights issue has a particular structure reflecting a likely rise in world tungsten prices. Avocet chief executive, Jocelyn Waller, has not commented on rumors of links between Avocet and Inmet.

Tungsten, Mergers, acquisitions and divestments, Tungsten industry, Avocet Mining PLC

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Effect of molecular weight on the exponential growth and morphology of hyaluronan/chitosan multilayers: A surface plasmon resonance spectroscopy and atomic force microscopy investigation

Article Abstract:

Atomic force microscopy (AFM) and surface plasmon resonance (SPR) spectroscopy is used to investigate the layer-by-layer growth of multilayer assemblies of two polysaccharides, the polyanion hyaluronan (HA) and the polycation chitosan (CH). The results show that the multilayer thickness at a give stage depends on the size of both CH, the diffusing polyelectroclyte, and HA, the nondiffusing species.

Biological Product (except Diagnostic) Manufacturing, Drugs, All Other Miscellaneous Chemical Product and Preparation Manufacturing, Chemical preparations, not elsewhere classified, Hyaluronic Acid, Polyelectrolytes, Chitin, Spectra, Adsorption, Resonance ionization spectroscopy, Chemical properties

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Coordination-based gold nanoparticle layers

Article Abstract:

Coordination chemistry were used for the construction of the gold nanoparticle (NP) mono- and multilayers on gold surfaces. The results obtained exhibit the potential of coordination self-assembly in achieving highly controlled composite nanostructures comprising molecules, NPs, and other ligand-derivatized components.

Gold, Coordination compounds

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