| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Mendes, P. M.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2023A Multifunctional Cementitious Composite for Pavement Subgrade
- 2022A novel approach for micro-antenna fabrication on ZrO2 substrate assisted by laser printing for smart implantscitations
- 2014Piezoelectric actuators for acoustic mixing in microfluidic devices - Numerical prediction and experimental validation of heat and mass transportcitations
- 2014Polymer-based acoustic streaming for improving mixing and reaction times in microfluidic applicationscitations
- 2012Development of a piezoelectric transducers system to improve mixing of fluids
- 2011Large area microfabrication of electroactive polymeric structures based on near-field electrospinningcitations
- 2011A low-power/low-voltage CMOS wireless interface at 5.7 GHz with dry electrodes for cognitive networkscitations
- 2010Hydrogel-based photonic sensor for a biopotential wearable recording systemcitations
- 2009Wearable brain cap with contactless electroencephalogram measurement for brain-computer interface applicationscitations
- 2009Manufacturing technology for flexible optical sensing foilscitations
- 2007Reconfigurable on-chip folded-patch antenna using tunable electroactive materialscitations
- 2007Study on pulsed DC-sputtering of iridium oxide for implantable electrodes
- 2006Integrated chip-size antennas for wireless microsystems : fabrication and design Considerationscitations
- 2004Wafer-level packaging fo RF applications : using high resistivity polycrystalline silicon substrate technology
- 2003Integrated chip-size antenna for wireless microsystems : fabrication and design considerations
- 2003Extraction of glass-wafers electrical properties based on S-parameters measurements of coplanar waveguides
- 2003Folded-patch chip-size antennas for wireless microsystems using wafer-level chip-scale packaging
- 2003Processability and electrical characteristics of glass substrates for RF wafer-level chip-scale packages
Places of action
| Organizations | Location | People |
|---|
article
Polymer-based acoustic streaming for improving mixing and reaction times in microfluidic applications
Abstract
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. ; This work was supported by FEDER funds through the Eixo I do Programa Operacional Fatores de Competitividade (POFC), QREN, project reference COMPETE: FCOMP-01-0124-FEDER- 020241 and Matepro – Optimizing Materials and Processes, NORTE-07-0124-FEDER-000037, and by FCT – Fundaç˜ao para a Ciˆencia e a Tecnologia, projects reference PTDC/EBB-EBI/ 120334/2010, NANO/NMed-SD/0156/2007, PTDC/BIO/70017/ 2006, PTDC/CTM/69316/2006, and in the framework of the Strategic Project PEST-C/FIS/UI607/2011. VFC thank the FCT for the SFRH/BD/44289/2008 grant.