The application of siderophores for metal recovery and waste remediation: examination of correlations for prediction of metal affinities

Hernlem, Bradley J.; Vane, Leland M.; Sayles, Gregory D.

doi:10.1016/s0043-1354(98)00293-0

Cited by 73 publications

(59 citation statements)

References 22 publications

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“…This difference is expected, however, given the much smaller stability constant for the 1:1 complexes of DFO-B with Pb 2+ , nearly all of which are cationic species (9). Bearing in mind that goethite and boehmite dissolution are occurring during the desorption experiments, we may also conclude that DFO-B is an effective desorber of toxic metal cations from these minerals, despite its high specificity for Fe 3+ and even Al 3+ (10).…”

Section: Resultsmentioning

confidence: 88%

Adsorption of Pb(II) and Eu(III) by Oxide Minerals in the Presence of Natural and Synthetic Hydroxamate Siderophores

Kraemer

Raymond

et al. 2002

Environ. Sci. Technol.

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Trihydroxamate siderophores have been proposed for use as mediators of actinide and heavy metal mobility in contaminated subsurface zones. These microbially produced ligands, common in terrestrial and marine environments, recently have been derivatized synthetically to enhance their affinity for transuranic metal cations. However, the interactions between these synthetic derivative and adsorbed trace metals have not been characterized. In this paper we compare a natural siderophore, desferrioxamine-B (DFO-B), with its actinide-specific catecholate derivative, N-(2,3-dihydroxy-4-(methylamido)benzoyl)-desferrioxamine-B (DFOMTA), as to their effect on the adsorption of Pb(II) and Eu(III) by goethite and boehmite. In the presence of 240 µM DFO-B, a strongly depleting effect on Eu(III) adsorption by goethite and boehmite occurred above pH 6. By contrast, almost total removal of Eu(III) from solution in the neutral to slightly acidic pH range was observed in the presence of either 10 or 100 µM DFOMTA, due primarily to the formation of metal-DFOMTA precipitates. Addition of DFOMTA caused an increase in Pb(II) adsorption by goethite below pH 5, but a decrease above pH 5, such that the Pb(II) adsorption edge in the presence of DFOMTA strongly resembled the DFOMTA adsorption envelope, which showed a maximum near pH 5 and decreasing adsorption toward lower and higher pH.

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Section: Resultsmentioning

confidence: 88%

Adsorption of Pb(II) and Eu(III) by Oxide Minerals in the Presence of Natural and Synthetic Hydroxamate Siderophores

Kraemer

Raymond

et al. 2002

Environ. Sci. Technol.

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“…The binding affinity of ligands with hard oxygen-binding groups, such as microbial siderophores and carboxylate chelators, is often strongly correlated to the charge-to-radius ratio of the metal ion ( Fig. 1), which is a surrogate for a metal ion's hardness (Duckworth et al 2009bHernlem et al 1999;Hider 1984). The difficulty in overcoming this trend in affinity in favor of a target metal is illustrated by the Table 1 Selected logb for a selection of metallophores with diverse metal ions Anderegg et al 1963;Bellenger et al 2007;Buglyo et al 1995;Carrano et al 1996;Choi et al 2006;Duckworth et al 2009c;Duckworth and Sposito 2005b;Enyedy et al 2004;Evers et al 1989;Farkas et al 2003;Harrington et al 2012b;Hernlem et al 1996;Jarvis and Hancock 1991;Kim et al 2009;Murakami et al 1989;Pesch et al 2012;Shenker et al 1996;Szabo and Farkas 2011;…”

Section: Structural Factors Controlling Metallophore Complexation Of mentioning

confidence: 99%

Metallophores and Trace Metal Biogeochemistry

et al. 2014

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Trace metal limitation not only affects the biological function of organisms, but also the health of ecosystems and the global cycling of elements. The enzymatic machinery of microbes helps to drive critical biogeochemical cycles at the macroscale, and in many cases, the function of metalloenzyme-mediated processes may be limited by the scarcity of essential trace metals. In response to these nutrient limitations, some organisms employ a strategy of exuding metallophores, biogenic ligands that facilitate the uptake of metal ions. For example, bacterial, fungal, and graminaceous plant species are known to use Fe(III)-binding siderophores for nutrient acquisition, providing the best known and most thoroughly studied example of metallophores. However, recent breakthroughs have suggested or established the role of metallophores in the uptake of several other metallic nutrients. Furthermore, these metallophores may influence environmental trace metal fate and transport beyond nutrient acquisition. These discoveries have resulted in a deeper understanding of trace metal geochemistry and its relationship to the cycling of carbon and nitrogen in natural systems. In this review, we provide an overview of the current state of knowledge on the biogeochemistry of metallophores in trace metal acquisition, and explore established and potential metallophore systems.Electronic supplementary material The online version of this article (

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“…The main biological role of these compounds is sequestrate iron from the environment and make it available to the microbial cell (Neilands 1995). In addition, siderophores have been showing ability to catalyze the degradation of some organic compounds via Fentonlike reactions (Barker and Stuckey 1999;Hernlen et al 1999). Siderophore compounds type has been suggested to be involved in wood biodegradation (Parra et al 1998).…”

Section: Introductionmentioning

confidence: 99%

Remediation of Kraft E1 and black liquor effluents by biological and chemical processes

Moraes

Durán

Freire³

2006

Environ Chem Lett

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We sutdied the application of the bacteria Azotobacter vinellandi on the treatment of effluents from pulp and paper industry. Two types of treatment employing this microorganism were studied: biological treatment isolated and combined with stages of pre-or post-treatment using ozonation or photocatalysis processes. In the biological treatment, the siderophores production by A. vinellandi had a major effect on the efficiency of effluents degradation. Among the different combined treatments, the best results were obtained with the photocatalytic pre-treatment.

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The application of siderophores for metal recovery and waste remediation: examination of correlations for prediction of metal affinities

Cited by 73 publications

References 22 publications

Adsorption of Pb(II) and Eu(III) by Oxide Minerals in the Presence of Natural and Synthetic Hydroxamate Siderophores

Adsorption of Pb(II) and Eu(III) by Oxide Minerals in the Presence of Natural and Synthetic Hydroxamate Siderophores

Metallophores and Trace Metal Biogeochemistry

Remediation of Kraft E1 and black liquor effluents by biological and chemical processes

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