Journal
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
Volume 82, Issue 13, Pages 3886-3891Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/AEM.00508-16
Keywords
-
Categories
Funding
- Royal Society UK under the Newton international fellowships scheme
- Leeds EPSRC Nanoscience and Nanotechnology Facility (LENNF)
- University of Leeds, School of Physics, summer program
- Japan Society for the Promotion of Science (JSPS) [23226016]
- BBSRC [BB/H005412/1] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BB/H005412/1] Funding Source: researchfish
- Engineering and Physical Sciences Research Council [EP/C53204X/1] Funding Source: researchfish
- Grants-in-Aid for Scientific Research [23226016, 16H02421] Funding Source: KAKEN
Ask authors/readers for more resources
Using microorganisms to remove waste and/or neutralize pollutants from contaminated water is attracting much attention due to the environmentally friendly nature of this methodology. However, cell recovery remains a bottleneck and a considerable challenge for the development of this process. Magnetotactic bacteria are a unique group of organisms that can be manipulated by an external magnetic field due to the presence of biogenic magnetite crystals formed within their cells. In this study, we demonstrated an account of accumulation and precipitation of amorphous elemental selenium nanoparticles within magnetotactic bacteria alongside and independent of magnetite crystal biomineralization when grown in a medium containing selenium oxyanion (SeO32-). Quantitative analysis shows that magnetotactic bacteria accumulate the largest amount of target molecules (Se) per cell compared with any other previously reported nonferrous metal/metalloid. For example, 2.4 and 174 times more Se is accumulated than Te taken up into cells and Cd2+ adsorbed onto the cell surface, respectively. Crucially, the bacteria with high levels of Se accumulation were successfully recovered with an external magnetic field. The biomagnetic recovery and the effective accumulation of target elements demonstrate the potential for application in bioremediation of polluted water.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available