Team:Heidelberg/Templates/Delftibactin overview1

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We obtained a vial of D. acidovorans DSM-39 from the ZSMZ and successfully reproduced the paper of Johnsson et al. (<bib id="pmid23377039"/>). D. acidovorans is capable to precipitate solid gold from gold chloride solution as purple-black nanoparticles. Already at low concentrations of gold chloride, gold nonaparticles are precipitated increasing with concentration of gold chloride in solution. In our experiments, precipitation on agar plates worked even better than described in the paper.

ACM agar plate with D. acidovorans (left) overlaid with 0.2% HAuCl4 in 0.5% agarose

Sequences of movie showing gold precipitation in D. acidovorans supernatant using gold concentrations ranging from 0 to 2.55 µg/ml


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