Interactions of the Mont Terri Opalinus Clay IsolateSporomusasp. MT-2.99 with Curium(III) and Europium(III)

Bacterial Diversity in Bentonites, Engineered Barrier for Deep Geological Disposal of Radioactive Wastes

“…Bacteria related to Firmicutes could be isolated from Opalinus clay in Mont Terri, Switzerland [16,17], but did not dominated the bacterial community by using culture-independent approaches. Sporulation is a common ability within the Firmicutes [62], which could make them more resistant against extraction of DNA.…”

“…Microorganisms can potentially affect radionuclide migration by various processes including biosorption, biomineralization, intracellular accumulation, biotransformations, etc. [11][12][13][14][15][16][17]. In addition, microbial occurrence can influence the release of radionuclides by changing geochemical conditions (especially pH and Eh), by producing organic complexes [18].…”

Green synthesis and biotransformation of amorphous Se nanospheres to trigonal 1D Se nanostructures: impact on Se mobility within the concept of radioactive waste disposal

“…6 Microorganisms are able to interact with typical elements of radioactive waste like selenium (Se), uranium (U) or curium (Cm) through different processes like biomineralization, biosorption or reduction leading to their mobilization or immobilization. [7][8][9] Selenium is considered a common component of highlevel radioactive waste (HLRW), particularly the Se 79 isotope produced by nuclear fission reactions. Different studies have indicated the Se 79 isotope to be one of the critical radionuclides for the geological disposal of HLRW due to its ability to emit β particles.…”

Plant cell (Brassica napus) response to europium(III) and uranium(VI) exposure

“…Based on lifetime measurements, Ozaki et al ( 2002 ) confirmed a relationship between experimentally obtained R E/M , the strength of the ligand field, and the geometrical structure around Eu(III). This previously reported empirical approach, which relies on the construction of coordination environment (CE) diagrams, was found to be effective for predicting the coordination environment of both the hydrated and complexed Eu(III) in solutions, as well as that of adsorbed Eu(III) on both the ion-exchange resins and on mammalian cells and microorganisms (Sachs et al 2015 ; Moll et al 2014 ). Our interpretations of the CE diagrams that we developed are based on the earlier work of Ozaki et al ( 2002 ), as follows.…”

“…EDTA: ethylenediaminetetraacetic acid, LPS: lipopolysaccharide. References: (a) Moll et al 2014 , (b) Ozaki et al 2005 , (c) Ozaki et al 2006 , (d) Heller et al 2012 , (e) Barkleit et al 2013 , (f) Bader et al 2019 …”