Nanobuilders were a type of nanotechnology used in medical treatments. The main usage was to help damaged cells such as in organs heak quicker.

In 2371, Julian Bashir, Celeste Silverstein and Wasner used nanobuilders to treat Jibim Kiba Siber. Silverstein injection the nanobuilders into Siber's heart and lungs. (DS9 novel: The Long Night)

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