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Antimicrobial activity of cobalt imidazolate metal-organic frameworks.

Antimicrobial activity of cobalt imidazolate metal-organic frameworks.

Chemosphere (2014-07-30)

Sonia Aguado, Jennifer Quirós, Jerome Canivet, David Farrusseng, Karina Boltes, Roberto Rosal

ABSTRACT

Two cobalt imidazolate metal-organic frameworks were evaluated as a bactericidal material against the growth of the Gram-negative bacteria Pseudomonas putida and Escherichia coli. Under the most unfavourable conditions, within the exponential growth phase and in the culture media for both microorganisms, the growth inhibition reached over 50% for concentrations of biocidal material in the 5-10mgL(-1) range. The release of metal gives excellent durability with the antibacterial effect persisting after 3months. Both cobalt-based materials can be prepared with simple, cheap and easily accessible commercial ligands, leading to a more affordable possible future application as antimicrobial materials.

MATERIALS

Product Number

Brand

Product Description

Sigma-Aldrich

Cobalt, foil, thickness 0.1 mm, 99.95% trace metals basis

Sigma-Aldrich

Cobalt, rod, diam. 5.0 mm, 99.95% trace metals basis

Sigma-Aldrich

Cobalt, foil, thickness 1.0 mm, 99.95% trace metals basis

Sigma-Aldrich

Cobalt, foil, thickness 0.1 mm, ≥99.99%

Sigma-Aldrich

Cobalt, wire, diam. 1.0 mm, 99.995% trace metals basis

Sigma-Aldrich

Cobalt, granular, 99.99% trace metals basis

Cobalt, foil, 25x25mm, thickness 1.0mm, as rolled, 99.99+%

Cobalt, foil, not light tested, 50x50mm, thickness 0.025mm, 99.9%

Sigma-Aldrich

Cobalt, pieces, 99.5% trace metals basis

Sigma-Aldrich

Cobalt, Carbon coated magnetic, nanopowder, <50 nm particle size (TEM), ≥99%

Cobalt, wire reel, 0.5m, diameter 0.5mm, hard, 99.99+%

Sigma-Aldrich

Cobalt, powder, 2 μm particle size, 99.8% trace metals basis

Cobalt, wire reel, 2m, diameter 0.05mm, hard, 99.9%

Cobalt, foil, not light tested, 25x25mm, thickness 0.008mm, 99.9%

Cobalt, foil, 8mm disks, thickness 0.025mm, 99.9%

Cobalt, foil, 8mm disks, thickness 0.007mm, 99.9%

Cobalt, foil, 8mm disks, thickness 0.05mm, as rolled, 99.99+%

Cobalt, foil, 6mm disks, thickness 0.006mm, 99.9%

Cobalt, foil, not light tested, 25x25mm, thickness 0.005mm, 99.9%

Cobalt, foil, not light tested, 50x50mm, thickness 0.0125mm, 99.9%

Cobalt, foil, 4mm disks, thickness 0.125mm, annealed, 99.9%

Cobalt, foil, 4mm disks, thickness 0.025mm, 99.9%

Cobalt, microfoil, disks, 10mm, thinness 0.25μm, specific density 222μg/cm², permanent mylar 3.5μm support, 99.9%

Cobalt, foil, 6mm disks, thickness 0.007mm, 99.9%

Cobalt, foil, 8mm disks, thickness 0.25mm, as rolled, 99.9%

Cobalt, foil, 8mm disks, thickness 0.05mm, as rolled, 99.9%

Cobalt, foil, light tested, 25x25mm, thickness 0.015mm, 99.9%

Cobalt, wire reel, 0.025m, diameter 2.0mm, hard, 99.99+%

Cobalt, foil, light tested, 100x100mm, thickness 0.05mm, as rolled, 99.99+%

Cobalt, foil, 6mm disks, thickness 0.015mm, 99.9%