A pneumatic gun for ballistic delivery of microparticles to soft targets is proposed and demonstrated. The particles are accelerated by a high-speed flow of helium in a capillary tube. Vacuum suction applied to a concentric larger diameter tube is used to divert substantially all of the flow of helium from the gun nozzle, thereby preventing the gas from hitting and damaging the target. Speed of ejection of micron-sized gold particles from the gun nozzle, and their depth of penetration into agarose gels are reported.
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Research Article| June 29 2005
Pneumatic capillary gun for ballistic delivery of microparticles
Dmitry Rinberg, Claire Simonnet, Alex Groisman; Pneumatic capillary gun for ballistic delivery of microparticles. Appl. Phys. Lett. 4 July 2005; 87 (1): 014103. https://doi.org/10.1063/1.1951044
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