Geobacter metallireducens bacterium, TEM
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Geobacter metallireducens bacterium, TEM
Geobacter metallireducens bacterium, coloured transmission electron micrograph. This anaerobic bacteriaoxidises organic compounds to form carbon dioxide, using iron oxide or other metals as an electron acceptor. This ability could be harnessed to decontaminate petroleum compounds, metals and radioactive substances. Geobacter can also be used within a microbial fuel cell and generate electricity by oxidising waste organic matter and transferring surplus electrons directly to an electrode. Geobacter grow long filaments known as pili that are electrically conductive. Geobacter was discovered in 1987 by Derek Lovley, Professor of Microbiology at the University of Massachusetts, USA
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Media ID 6292613
© DEREK LOVLEY/SCIENCE PHOTO LIBRARY
Alternative Energy Alternative Fuel Anaerobic Bacteria Bacterial Bacteriology Bacterium Blue Decontamination Electrical Electrochemistry Extremophile Extremophiles Filament Filaments Micro Organisms Microbe Microbes Microscope Nanoelectronics Nanotechnology Nanowire Pili Transmission Electron Transmission Electron Micrograph False Coloured Micro Biology Microbiological
EDITORS COMMENTS
This print showcases the Geobacter metallireducens bacterium, a remarkable anaerobic organism with immense potential. Coloured using transmission electron microscopy, this image reveals the intricate details of Geobacter's structure and highlights its unique abilities. Geobacter has the extraordinary capability to oxidise organic compounds into carbon dioxide while utilizing iron oxide or other metals as an electron acceptor. This remarkable feature makes it a promising candidate for decontaminating petroleum compounds, metals, and even radioactive substances. Its application in cleaning up hazardous waste could revolutionize environmental remediation efforts. Moreover, Geobacter can be employed in microbial fuel cells to generate electricity by oxidising waste organic matter and directly transferring surplus electrons to an electrode. The long filaments known as pili that Geobacter grows are electrically conductive, further enhancing its potential for energy production. Discovered in 1987 by Derek Lovley at the University of Massachusetts, USA, Geobacter continues to fascinate scientists worldwide due to its ability to thrive in extreme conditions and serve as an alternative energy source. With nanowires that exhibit natural electrical properties resembling those of batteries or fuel cells, Geobacter holds promise for advancements in nanotechnology and electrochemistry. This stunning photograph not only captures the beauty of this microbe but also represents a significant breakthrough in microbiology research. It symbolizes our ongoing exploration into harnessing nature's capabilities for sustainable solutions without commercial implications.
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