Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/27352

TitlePolymer-based acoustic streaming for improving mixing and reaction times in microfluidic applications
Author(s)Cardoso, V. F.
Knoll, T.
Velten, T.
Rebouta, L.
Mendes, P. M.
Lanceros-Méndez, S.
Minas, Graça
KeywordsAcoustic streaming
Microfluidics
Issue date2014
PublisherRoyal Society of Chemistry
JournalRSC Advances
CitationRSC Adv., 2014, 4, 4292
Abstract(s)This paper reports on a polymer-based piezoelectric transducer used in microfluidic structures for generating acoustic waves, and consequently, the acoustic streaming phenomenon, that will improve the mixing of fluids. The piezoelectric transducer is based on a poly(vinylidene fluoride-trifluoroethylene), P(VDF-TrFE), copolymer with conductive transparent electrodes of aluminum doped zinc oxide (AZO). The efficiency of the optimized piezoelectric P(VDF-TrFE) transducer on mixing fluids was studied using two diagnostic kits for the quantification of uric acid and nitrite in blood. In both cases, acoustic streaming reduced the reaction time for the quantification of each biomolecule when compared to the reaction time achieved only by diffusion, with gains of 23% and of 32% for the uric acid and nitrite, respectively. These results contribute to increase the efficiency in fluid mixing and therefore to improve the overall performance of miniaturized analysis systems.
TypeArticle
URIhttp://hdl.handle.net/1822/27352
DOI10.1039/c3ra46420b
ISSN2046-2069
Publisher versionhttp://pubs.rsc.org/en/content/articlelanding/2014/ra/c3ra46420b#!divAbstract
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CAlg - Artigos em revistas internacionais/Papers in international journals
DEI - Artigos em revistas internacionais

Files in This Item:
File Description SizeFormat 
RSC Advances 2013_Vanessa.pdf
  Restricted access
Documento principal1,02 MBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID