T
T. Gehrke
Researcher at University of Hamburg
Publications - 18
Citations - 3435
T. Gehrke is an academic researcher from University of Hamburg. The author has contributed to research in topics: Bioleaching & Extracellular polymeric substance. The author has an hindex of 15, co-authored 18 publications receiving 3188 citations. Previous affiliations of T. Gehrke include University of Duisburg-Essen.
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Bioleaching review part A: progress in bioleaching: fundamentals and mechanisms of bacterial metal sulfide oxidation.
TL;DR: In this paper, the authors show that the dominance of At. ferrooxidans or Leptospirillum in mesophilic leaching habitats is highly likely to result from differences in their biochemical iron(II) oxidation pathways, especially the involvement of rusticyanin.
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(Bio)chemistry of bacterial leaching - direct vs. indirect bioleaching
TL;DR: In this article, a new integral model for bio-leaching is presented, where metal sulfides are degraded by a chemical attack of iron(III) ions and/or protons on the crystal lattice.
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Importance of Extracellular Polymeric Substances from Thiobacillus ferrooxidans for Bioleaching
TL;DR: EPS from sulfur cells possess increased hydrophobic properties and do not attach to pyrite, indicating adaptability to the substrate or substratum.
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Extracellular polymeric substances mediate bioleaching/biocorrosion via interfacial processes involving iron(III) ions and acidophilic bacteria
Wolfgang Sand,T. Gehrke +1 more
TL;DR: The role of extracellular polymeric substances for attachment under the conditions of a space station and resulting effects like biofouling, biocorrosion, malodorous gases, etc will be discussed.
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Adhesion to metal sulfide surfaces by cells of Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans and Leptospirillum ferrooxidans
TL;DR: Attachment of four strains of Acidithiobacillus ferrooxidans to pyrite, chalcopyrite , galena, sphalerite or quartz was found to be mineral-selective, and the bacterial extracellular polymeric substances (EPS) are responsible for mediating this process.