BBC News - Fluorescing bacteria used to encode secret messages

Spots of fluorescent bacteria are printed in a grid to convey messages

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Scientists have developed fluorescent bacteria that encode secret messages, creating a living invisible ink.

Simple messages can be encoded by genetically engineering bacteria to produce fluorescent coloured proteins, then printing them in a grid.

This method could be harnessed for secret communications as well as for anti- [...]

Full article at bbc.co.uk

 

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