zhengzhou , china
[email protected]
zhengzhou , china
[email protected]
A XANES spectra and results of LCF of Au in . cell pellets after 6, 48, and 72 h amended with 50 M AuIII, individual . cells [after144 h amended with 100 M Au ...
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The metal resistant bacterium Cupriavidus CH34, challenged with aqueous platinous and platinic chloride, rapidly immobilized platinum. XANES/EXAFS analysis of these reaction systems demonstrated that platinum binding shifted from chloride to carboxyl functional groups within the bacteria. PtIV was more toxic than PtII, presumably due to the oxidative stress imparted by the ...
· . —whose name means “metal-enduring”—is a unique species of bacteria that survives in environments with high heavy metal concentrations, which would be toxic to other bacteria. . is often found in industrial waste sites or locations, and especially in nuggets in Australia.
Viable, inactive, and dead . CH34 cultures were incubated in Conclusions the presence of 50 M AuIII-complexes at pHs of 5.0 to 8.0 for 6 h and 144 h, and Au uptake was measured ICP-MS. Thermodynamic data indicate that We have shown that the biomineralization of particulate Au in aqueous AuIII in the experimental ...
Cupriavidus metallidurans BS1 was isolated from a gold copper mine in China and was found to have 99.9–100% 16S rRNA gene identity to available genomes in the National Center for Biotechnology Information NCBI database of C. metallidurans strains CH34, NBRC 102507, NDB3NO24, Ni-2, NA1, NA4, NE12 and H1130 using the Geneious alignment global alignment cost matrix, identity Kearse …
Bacterial biofilms are associated with secondary grains from two sites in Australia. 16S ribosomal DNA clones of the genus Ralstonia that bear 99% similarity to the bacterium Ralstonia —shown to precipitate from aqueous III tetrachloride—were present on all DNA-positive grains but were not detected in the surrounding soils.
· Cupriavidus is associated with grains and may be involved in their formation. III complexes influence the transcriptome of . F. Reith et al., Proc. Natl. Acad. Sci. U. S. A. 106:17757–17762, 2009, leading to the upregulation of genes involved in the detoxification of reactive oxygen species and metal ions. In a systematic study, the involvement of ...
Heavy metal resistance in Cupriavidus CH34 is governed by an intricate transcriptional network. BioMetals 2011, 24 6 , 1133-1151. DOI: 10.1007/s10534-011-9473-y. Sebastián Cerminati, Fernando . Soncini, Susana K. Checa. Selective detection of genetically engineered bacterial reporters.
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nanoparticles GNPs have shown great promises in biomedical applications due to their distinct dimensions, non-toxicity, regulated drug release capability and adjustable surface functionalities. This study illustrates a green method for GNPs synthesis from electronic scrap material ESM Cupriavidus and Delftia acidovorans.
However, it is unknown if biogeochemical cycling of Au occurs in polar environments, where air temperatures can reach −40 ° and soils remain frozen for much of the year. Therefore, placer Au-particles, soils and waters were collected at two placer districts in arctic Finland, i.e., the Ivalojoki and Lemmenjoki goldfields.
Initial R. cells accumulated less than been shown to reductively precipitate some of precipitation by R. was rapid, and 50 wt % of relative to biologically active these metals Ei.e., AgI, CdII, and ZnII^ after 8 hours of incubation, about 3 mM cells, indicating that R. may be 24, 25.
Mechanisms of biomineralization in the bacterium Cupriavidus Frank Reithab Barbara Etschmanncde# Cornelia Grossef, Hugo Moors9, Mohammed A. Benotmane9, Pieter Monsieurs9, Gregor Grassh/ Christian Doonan, Stefan Vogtj, Barry Lai, Gema Martinez-Criadokr Graham N. George1, Dietrich H. Niesf,
. —whose name means “metal-enduring”—is a unique species of bacteria that survives in environments with high heavy metal concentrations, which would be toxic to other bacteria. . is often found in industrial waste sites or locations, and especially in nuggets in …
