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. Author manuscript; available in PMC: 2011 Nov 18.
Published in final edited form as: Anal Chem. 2009 Jan 1;81(1):509–514. doi: 10.1021/ac801959a

Figure 1.

Figure 1

Illustration of Acoustic Dispensing. Focused acoustic beams travel from the transducer, through a coupling fluid, through the bottom of the well plate, and into the sample. The amount of energy used can be tuned so that droplets over a small range of volumes are ejected from the surface.