Piezoelectric β-PVDF polymer films as fluid acoustic microagitator

The main objective of this paper is to describe a fluidic acoustic microagitation system based on a Poly(Vinylidene Fluoride) polymer. This system benefits from the high piezoelectric properties presented by the beta-phase of the polymer (beta-PVDF) converting an electrical signal into acoustics vibrations. These vibrations can be used in microfluid systems to enhance fluids mixture and reaction. Experimental results regarding the influence of the area and thickness of the piezoelectric beta-PVDF polymer on the velocity of reaction of some biological fluids are presented. Moreover, the incorporation of the beta-PVDF underneath microfluidic structures of a lab-on-a-chip with an automatic electronic control is referred.

[1]  Senentxu Lanceros-Méndez,et al.  Processing and characterization of a novel nonporous poly(vinilidene fluoride) films in the β phase , 2006 .

[2]  Senentxu Lanceros-Méndez,et al.  α- to β Transformation on PVDF Films Obtained by Uniaxial Stretch , 2006 .

[3]  R. Wolffenbuttel,et al.  An array of highly selective Fabry-Perot optical channels for biological fluid analysis by optical absorption using a white light source for illumination , 2006 .

[4]  G. Spinks,et al.  Design, fabrication and testing of piezoelectric polymer PVDF microactuators , 2006 .

[5]  R. Wolffenbuttel,et al.  A lab-on-a-chip for spectrophotometric analysis of biological fluids. , 2005, Lab on a chip.

[6]  José Higino Correia,et al.  A SU-8 fluidic microsystem for biological fluids analysis , 2005 .

[7]  Thomas Laurell,et al.  Ultrasonic agitation in microchannels , 2004, Analytical and bioanalytical chemistry.

[8]  J. C. Ribeiro,et al.  Biological microsystem for measuring uric acid in biological fluids , 2004 .

[9]  James S. Horwitz,et al.  Miniature valveless ultrasonic pumps and mixers , 2000 .

[10]  Kazuo Tanaka,et al.  A unified approach to controlling chaos via an LMI-based fuzzy control system design , 1998 .

[11]  Jerry Workman,et al.  Applied Spectroscopy: A Compact Reference for Practitioners , 1998 .

[12]  D S Young,et al.  Effects of Drugs on Clinical Laboratory Tests , 1997, Clinical chemistry.

[13]  G. R. Crane,et al.  Pyroelectricity and Optical Second Harmonic Generation in Polyvinylidene Fluoride Films , 1971 .

[14]  H. Kawai,et al.  The Piezoelectricity of Poly (vinylidene Fluoride) , 1969 .

[15]  John L. Crassidis,et al.  Sensors and actuators , 2005, Conference on Electron Devices, 2005 Spanish.

[16]  R R Alfano,et al.  Ultraviolet-visible acousto-optic tunable spectroscopic imager for medical diagnosis. , 1998, Journal of biomedical optics.

[17]  Michael J. K. Thomas.  Ultraviolet and visible spectroscopy , 1996 .

[18]  T. Ikeda.  Fundamentals of piezoelectricity , 1990 .

[19]  Y. Wada,et al.  Piezoelectricity, pyroelectricity, and the electrostriction constant of poly(vinylidene fluoride) , 1971 .