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TitleA numerical and experimental study of acoustic micromixing in 3D microchannels for lab-on-a-chip devices
Author(s)Catarino, Susana Oliveira
Pinto, Vânia Cristina Gonçalves
Sousa, Paulo J.
Lima, Rui Alberto Madeira Macedo
Miranda, João M.
Minas, Graça
Issue date2016
JournalIEEE Engineering in Medicine and Biology Society Conference Proceedings
Abstract(s)This paper reports a numerical and experimental study of acoustic streaming and micromixing in polydimethylsiloxane microchannels. The mixing between two fluids flowing in microchannels was evaluated through the following conditions: (1) using a 28 mu m thick beta-poly(vinylidene fluoride) (beta-PVDF) as a piezoelectric transducer actuated with a 24 Vpp and 40 MHz sinusoidal voltage; (2) using different flow rates. The results suggest that the mixing length increases as the flow rate increases and that the acoustic streaming phenomenon leads to a reduction on the mixing length. The good qualitative agreement between numerical and experimental results is a valuable indicator to predict the mixing performance of microfluidic devices, for improving biological fluid analysis in diagnosis lab-on-a-chip devices.
TypeConference paper
AccessRestricted access (Author)
Appears in Collections:DEI - Artigos em atas de congressos internacionais

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