Gene-engineered viruses build a better battery

Researchers who have trained a tiny **virus** to do their bidding said on Thursday they made it build a more **efficient** and powerful **lithium battery**. They changed two **genes** in the virus, called M13, and got it to do two things: build a shell made out of a compound called iron phosphate, and then attach to a carbon **nanotube** to make a powerful and tiny electrode. "Reuters":[ http://uk.reuters.com/article/scienceNews/idUKTRE5317A120090402]

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