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Lap dog.

A new ‘dog on a chip‘ (huh?) may one day be used instead of real canines to check for illicit substances like drugs. Once detected it sends an alarm to a laptop.

‘The dog-on-a-chip works with antibodies by looking at their molecular structure, Hunt said. In this case the researchers tested cocaine antibodies, which change in structure and mass if they come into contact with cocaine molecules.’

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