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|Title:||A 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.
|Journal:||IEEE 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.|
|Access:||Restricted access (Author)|
|Appears in Collections:||DEI - Artigos em atas de congressos internacionais|
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