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The researchers said the artificial blood was easier to store
Scientists have developed an artificial plastic blood which could act as a substitute in emergencies.

Researchers at Sheffield University said their creation could be a huge advantage in war zones.

They say that the artificial blood is light to carry, does not need to be kept cool and can be kept for longer.

The new blood is made up of plastic molecules that have an iron atom at their core, like haemoglobin, that can carry oxygen through the body.

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http://news.bbc.co.uk/2/hi/uk_news/england/north_yorkshire/6645923.stm