In vitro formation of Ca-oxalates and the mineral glushinskite by fungal interaction with carbonate substrates and seawater K. Kolo and Ph. Claeys Vrije Universiteit Brussel, Department of Geology, Pleinlaan 2, 1050 Brussels, Belgium Received: 21 February 2005 – Accepted: 21 March 2005 – Published: 15 April 2005 Correspondence to: K. Kolo ([email protected]) © 2005 Author(s). This work is licens...

The synthesis of chiral tetrahydrofurans and pyrrolidines starting from 1,2-diols or β-amino alcohols, respectively, by visible-light-mediated deoxygenation is described. Easily accessible monoallylated/propargylated substrates were activated either as inexpensive ethyl oxalates or as recyclable 3,5-bis(trifluoromethyl)benzoates to generate alkyl radicals suitable for 5-exo-trig/5-exo-dig cycli...

Precipitated oxalates are often nanostructured and can be used as precursors for nanostructured oxides for different applications. The modification of the particle shape and nanostructures of both copper and cobalt oxalates has been demonstrated using polymeric additives or complexing counter-ions. In the case of cobalt oxalate the characteristic elongated rod particle shape (axial ratio of 10)...

Birefringent materials with large optical anisotropy, which can be used to modulate the polarization of light, play a key role in laser techniques and science. However, exploration studies new, superior birefringent develop extremely slowly due lack effective guidelines for rational design. Herein, three antimony(III) fluoride oxalates, namely, Na2Sb2(C2O4)F6, K2Sb2(C2O4)F6, Cs2Sb2-(C2O4)2F4·H2...

Bioleaching is a proven bioprocess for metal recovery by solution from solid matrices, while a bioprecipitation or biomineralization approach is of potential for biorecovery from solution. Fungi can directly and indirectly mediate the formation of many kinds of minerals, including oxides, phosphates, carbonates and oxalates, as well as elemental forms of metals and metalloids such as Ag, Se and...