Living laser

An intermittent pick of technology stories I’ve written about lately:

Making solid-state semiconductors emit laser light is ingenious enough; imagine if living cells could be persuaded to do it too.

There are good reasons why taking a decent picture of your own retina is really difficult and a really good thing.

3D printing of metals and plastics is about to be joined by 3D printing of biological materials—potentially one individual cell at a time.

5 September 2015 Science

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