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. Author manuscript; available in PMC: 2013 Oct 8.
Published in final edited form as: Small. 2012 Jul 3;8(19):2925–2934. doi: 10.1002/smll.201200456

Figure 4.

Figure 4

Constant input-driven microfluidic oscillator. (A) Constant flow-driven oscillator. In the two normally closed valves, one valve’s drain is connected to the other valve’s gate, thereby making alternating pressure accumulation and release of each valve. Reproduced with permission.[30] Copyright 2012 American Chemical Society. (B) Constant pressure-driven oscillators. Vibration of free-standing, flexible disk results in outflow oscillation. Reproduced by permission of The Royal Society of Chemistry.[31]