A numerical and experimental study of acoustic micromixing in 3D microchannels for lab-on-a-chip devices

• Type: Article in International Conference Proceedings Book
• Date: 2016

Authors

Catarino, SO (Author) Other; Pinto, VC (Author) Other; Sousa, PJ (Author) Other; Lima, R (Author) Other; Miranda, JM (Author) FEUP; Minas, G (Author) Other

Conference proceedings International

Title: 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016, Orlando, FL, USA, August 16-20, 2016

Pages: 5660-5663

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 2 Citations

Other information

Authenticus ID: P-00P-EZA

DOI: 10.1109/embc.2016.7592011

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4