99 research outputs found
Changes in the perception of biological X-ray absorption spectroscopy between ICBIC 1 and ICBIC 10/BIOXAS 2001: how far have we travelled?
Oxygen binding and activation by the complexes of PY2- and TPA-appended diphenylglycoluril receptors with copper and other metals
Emission of volatile halogenated compounds, speciation and localization of bromine and iodine in the brown algal genome model Ectocarpus siliculosus
This study explores key features of bromine and iodine metabolism in the filamentous brown alga and genomics model Ectocarpus siliculosus. Both elements are accumulated in Ectocarpus, albeit at much lower concentration factors (2-3 orders of magnitude for iodine, and < 1 order of magnitude for bromine) than e.g. in the kelp Laminaria digitata. Iodide competitively reduces the accumulation of bromide. Both iodide and bromide are accumulated in the cell wall (apoplast) of Ectocarpus, with minor amounts of bromine also detectable in the cytosol. Ectocarpus emits a range of volatile halogenated compounds, the most prominent of which by far is methyl iodide. Interestingly, biosynthesis of this compound cannot be accounted for by vanadium haloperoxidase since the latter have not been found to catalyze direct halogenation of an unactivated methyl group or hydrocarbon so a methyl halide transferase-type production mechanism is proposed
Changes in the perception of biological X-ray absorption spectroscopy between ICBIC 1 and ICBIC 10/BIOXAS 2001: how far have we travelled?
The proceedings of BIOXAS 2001 (Siena, Italy, 2001) and both current and planned activities in the field of biological X-ray absorption spectroscopy are discussed against the perspective of changes in the perception of the technique since ICBIC 1 (Florence, Italy, 1983)
A tailored organometallic gelator with enhanced amphiphilic character and structural diversity of gelation
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Determination of the local atomic structure of the active center of bromoperoxidase protein via the analysis of x-ray absorption spectra
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