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Bacteria may be used to source high-grade copper – study
US and Brazil-based researchers have published a new study where they outline what they deem a ‘more efficient and safer’ alternative to sourcing copper via bacteria.
The paper was published in the journal
Science Advances and in their discussion, the scientists provide conclusive evidence of how a copper-resistant bacterium found in a copper mine in Brazil transforms copper sulfate (CuSO4) ions into zero-valent Cu or metallic copper.
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“By putting the bacteria inside an electronic microscope, we were able to figure out the physics and analyze it. We found out the bacteria were isolating single atom copper,” Francisco C. Robles Hernandez, co-author of the study, said in a media statement. “In terms of chemistry, this is extremely difficult to derive. Typically, harsh chemicals are used in order to produce single atoms of any element. This bacterium is creating it natural
Mining bacteria turn toxic copper ions into useful metal Mining bacteria turn toxic c.
Researchers have isolated a bacterium that can convert toxic forms of copper into useable metallic copper 1/1
Copper is one of the most widely used metals, but extracting and refining it into a useful form can be energy intensive and requires harsh chemical treatments. But now, researchers at the University of Houston have discovered bacteria that naturally convert toxic copper ions into metallic copper.
No matter how inhospitable an environment seems to us, chances are high that some form of life will find a way to thrive there. Copper mines are one such example – copper ores can be toxic – but certain species of bacteria have been found living there. And in the new study, researchers investigated what they’re actually doing in these mines.
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