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. Author manuscript; available in PMC: 2022 Apr 26.
Published in final edited form as: Lab Chip. 2021 Feb 9;21(3):582–596. doi: 10.1039/d0lc00865f

Fig. 4. Wall trapping of 10 μm PS particles in different capillary channels.

Fig. 4

(a) Time-lapse images of particles under ultrasound for 200 μm to 500 μm diameter channels (Movie S2†) (b) schematics of the acoustofluidic setup for wall trapping inside artificial capillaries. (c) The particle tracing simulations of the microchannel cross-section from dispersed to ultrasonically manipulated condition. The traces confirm the final location of the beads observed in the experiments. The scale bars are 100 μm. The operating frequencies are 87 kHz for 200 μm diameter channel, 47 kHz for 300 μm diameter channel, 46.8 kHz for 400 μm diameter channel and 32.9 kHz for 500 μm diameter channel.