Abstract:
:One mechanism of silver resistance in microorganisms is accumulation of the metal ions in the cell. Here, we report on the phenomenon of biosynthesis of silver-based single crystals with well-defined compositions and shapes, such as equilateral triangles and hexagons, in Pseudomonas stutzeri AG259. The crystals were up to 200 nm in size and were often located at the cell poles. Transmission electron microscopy, quantitative energy-dispersive x-ray analysis, and electron diffraction established that the crystals comprise at least three different types, found both in whole cells and thin sections. These Ag-containing crystals are embedded in the organic matrix of the bacteria. Their possible potential as organic-metal composites in thin film and surface coating technology is discussed.
journal_name
Proc Natl Acad Sci U S Aauthors
Klaus T,Joerger R,Olsson E,Granqvist CGdoi
10.1073/pnas.96.24.13611keywords:
subject
Has Abstractpub_date
1999-11-23 00:00:00pages
13611-4issue
24eissn
0027-8424issn
1091-6490journal_volume
96pub_type
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