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. Author manuscript; available in PMC: 2019 May 15.
Published in final edited form as: Lab Chip. 2015 Aug 7;15(15):3125–3131. doi: 10.1039/c5lc00539f

Fig. 1.

Fig. 1

(a) Schematic of the acoustofluidic sputum liquefier. Experimental images showing the mixing of fluorescein and DI water when (b) PZT was off: a laminar flow pattern was observed; (c) PZT was on: excellent mixing of two fluids was achieved. (d) Photograph of our acoustofluidic sputum liquefier. (e) Drawing showing the detailed design of our acoustofluidic sputum liquefier. Simulated results showing the Lagrangian mean flow velocity when the fluid is (f) water and (g) a high viscosity fluid (such as sputum) with a viscosity ten times that of the water. Circular streamlines are observed in both cases indicating excellent mixing in both cases.