ACOUSTIC THERMOAGITATION BASED ON PIEZOELECTRIC β-PVDF POLYMER FILMS - Potential Evaluation in Lab-on-a-Chip Applications

V. F. Cardoso, G. Minas, P. Martins, J. Serrado Nunes, L. Rebouta, S. Lanceros-Méndez, G. Botelho

Abstract

This paper describes a lab on a chip device with acoustic thermoagitation based on a piezoelectric β-PVDF polymer. The device is used for testing and monitoring biochemical parameters in biological fluids using optical absorption spectrophotometry. Experimental results regarding the influence of the electrical signal amplitude and frequency applied for the generation of acoustic thermoagitation is presented. The individual contribution of the heating and the microagitation provided by the actuation of the piezoelectric film for the fluids mixture was determined. The paper is completed with a study of the β-PVDF degradation with transparent conductive electrodes, ITO and AZO, when placed in contact with uric acid fluids. The final goal of using this technique is the improvement of mixing and reaction time without interfering with biochemical reactions and analytical measurements.

References

  1. Auroux, P., Iossifidis, D., Reyes, D. R., Manz, A., 2002, Micro Total Analysis Systems: Analytical Standard Operations and Applications. Anal. Chem., 74, p. 2637-2652.
  2. Reyes, D. R., Iossifidis, D., Auroux, P., Manz, A., 2002, Micro Total Analysis Systems. 1. Introduction, Theory, and Technology. Anal. Chem., 74, p. 2623- 2636.
  3. Rife, J. C., et. al., 2000, Miniature Valveless Ultrasonic Pumps and Mixers. Sensors and Actuators B., 86, p. 135-140.
  4. Ottino, J. M., Wiggins, S., 2004, Introduction: Mixing in Microfluidics. Phil. Trans. R. Soc. Lond. A. 362, p. 923-935.
  5. Lanceros-Mendez, S., Sencadas, V., Gregorio Filho, R., Portuguese patent n.º 103318.
  6. Thomas, M., 1999, Ultraviolet and visible spectroscopy. Analytical Chemistry by Open Learning, p. 2-47.
  7. Frampton, K. D., Minor, K., Martin, S., 2004, Acoustic streaming in micro-scale cylindrical channels. Applied Acoustic, Vol. 65, p. 1121-1129.
  8. Brown, L. F., 1992, Ferroelectric Polymers: current and future ultrasound applications. In IEEE Ultrason. Symp. Proc. p. 539-550.
  9. Foster, F. S., 2000, A history of medical and biological imaging with polyvinylidene fluoride (PVDF transducers. In IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. Vol. 47 Nº 6.
  10. Eiras, J. A., 2007, Piezoelectric Materials. Departamento de Física, Universidade Federal de São Carlos, Brasil.
Download


Paper Citation


in Harvard Style

F. Cardoso V., Minas G., Martins P., Serrado Nunes J., Rebouta L., Lanceros-Méndez S. and Botelho G. (2009). ACOUSTIC THERMOAGITATION BASED ON PIEZOELECTRIC β-PVDF POLYMER FILMS - Potential Evaluation in Lab-on-a-Chip Applications . In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2009) ISBN 978-989-8111- 64-7, pages 394-397. DOI: 10.5220/0001546903940397


in Bibtex Style

@conference{biodevices09,
author={V. F. Cardoso and G. Minas and P. Martins and J. Serrado Nunes and L. Rebouta and S. Lanceros-Méndez and G. Botelho},
title={ACOUSTIC THERMOAGITATION BASED ON PIEZOELECTRIC β-PVDF POLYMER FILMS - Potential Evaluation in Lab-on-a-Chip Applications},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2009)},
year={2009},
pages={394-397},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001546903940397},
isbn={978-989-8111- 64-7},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2009)
TI - ACOUSTIC THERMOAGITATION BASED ON PIEZOELECTRIC β-PVDF POLYMER FILMS - Potential Evaluation in Lab-on-a-Chip Applications
SN - 978-989-8111- 64-7
AU - F. Cardoso V.
AU - Minas G.
AU - Martins P.
AU - Serrado Nunes J.
AU - Rebouta L.
AU - Lanceros-Méndez S.
AU - Botelho G.
PY - 2009
SP - 394
EP - 397
DO - 10.5220/0001546903940397