Physicists invent living laser
from Physics World
A single living cell has been coaxed into producing laser light, researchers report in
. The technique starts by encoding the cells with DNA that leads to expression of green fluorescent protein. Irradiating the cells in a mirrored cavity with weak blue light pulses causes the cells to emit directed, green laser light. While these "cellular lasers" have unknown applications today, it is easy to speculate that the intracellular lasing can be used in imaging and therapeutic contexts.
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