microcannon

plural microcannons

1. A microscopic cannon, typically used to inject medicine into a body.

   A battery of several microcannons can be used to fire the drug cargoes at different times and different depths.

   2016 February 1, Tom Whipple, “Microcannon firing nanobullets: the future of targeted medicine”, in The Times

   2 more examples

   The microcannon starts with a membranous polymer film. […] PFC vaporizes when hit with an ultrasound pulse, producing rapidly expanding gas bubbles that "fire" the nanobullets out of the microcannons at speeds on the order of meters per second -- and the fluorescent microbullets light up to show exactly where they landed in the tissue target.

   2016 January 14, Jessica Hall, “Nanoengineers build 'microcannons' that fire light-up bullets filled with drugs”, in ExtremeTech

   The microcannon was seen moving at about a micron per second, it was about 15 microns long, and the high speed photograph was done in water (density of 1 kg/L, viscosity of about 0.001 pascal seconds).

   2018 February 28, Alexander Klotz, “Microcannons firing Nanobullets”, in Softbites