Microbes with mettle build their own electrical ‘wires’

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3 years ago

Hardy bacteria thrive on an antimicrobial metal — and turn it to their advantage.

Some bacteria that can transmit electricity turn out to have a hidden talent: when grown on a copper electrode, they construct a network of copper-sulphide compounds that boosts their conductivity.

Copper is hostile to microorganisms, and as a result has long been used in antibacterial cladding for ships’ hulls, and in pots and pipes for drinking water. But while studying electrically conductive Geobacter sulfurreducens bacteria for use in fuel cells, Uwe Schröder and colleagues at the Technical University of Braunschweig in Germany found that the microbes flourished on copper, forming tough layers known as biofilms.

What’s more, G. sulfurreducens biofilms on a copper electrode produced double the electrical current of those on a graphite electrode. Chemical analysis revealed copper-sulphide solids deposited throughout the biofilms. The team concluded that the bacteria promote chemical reactions between the copper electrode and sulphate ions in their food source to form copper-sulphide ‘wires’, which enhanced the flow of electricity within the biofilm.

The researchers hope their findings can help to improve the design and performance of fuel cells that take advantage of such electrically conductive bacteria.

Energy Environ. Sci. (2020.

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Full link : https://www.nature.com/articles/d41586-020-02482-3

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🤨 hmm. its my first time to know this organism. worthy of sharing for me 🙏😇

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3 years ago

Makikita mo ung exclusive sa tabi ng Boost. Try mo tuloy2 points sa ganun kiya japh. Nalaman ko lang kanina. Sa group e.

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3 years ago

may bayad haha

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3 years ago

Hindi wlaa bayad haha. Gawin mo type mo lang pili ka lang ng maiksi para d ka mahirapn tas lagyan mo nlang ng pic. Yung points ko now tuloy2 na sya.

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3 years ago

may pic article ko ahh cge gets ko na try ko

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3 years ago

Try mo . Tska pag magcomment ka check mo kung exclusive sya . Habaan mo comment mo pag exclusive mas malaki bigay pag ganon.

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3 years ago

d ko makita kung nasan ung exclusive

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3 years ago

d ko gets haha

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3 years ago

Pag gagawa ka ng article wag mo sya icopy paste. Kase madetect nila. Dapat itype mo mano mano. Para maging exclusive sya.

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3 years ago

Punta ka sa article ko yung isaw tas mkita mo dun sa taas tabi ng boost

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3 years ago

wla nadagdag sa points ko

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3 years ago

ok na haha tingnan mu ung bago ko article . salamat sayo ha

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3 years ago

Kuya .japh suggest ko lang .try mo po not to copy paste. Type mo nalang yung article mo para maging exclusive sya. Ganun kase ginawa ko .tska kung mgcocoment ka sa isnag article tignan mo kung my check tas exclusive ung article. Para gumalw yung points mo.

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3 years ago

nagalaw points ko kht wla ako ginagawa 0.5 $ din pee day

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3 years ago

I like it

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3 years ago

great dear...

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3 years ago