On-chip characterization of the viscoelasticity of complex fluids using microcantilevers

Youssry, Mohamed; Lemaire, Etienne; Caillard, Benjamin; Colin, Annie; Dufour, Isabelle

doi:10.1088/0957-0233/23/12/125306

Cited by 18 publications

(27 citation statements)

References 54 publications

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“…The first of these permits the determination of both the mass density and viscosity of the fluid at the resonant frequency of the microcantilever in the fluid [29]; the second enables one to extract the same properties over a frequency range that includes the in-fluid resonant frequency [31]; two other methods are based on the same principle, but with the assumption that the fluid's mass density is known. These latter methods allow for the determination of the real and imaginary parts of the fluid's shear modulus, which characterize both the elasticity and viscosity of the fluid [32]. In this section we will focus on presenting a more detailed description of the fourth method (estimation of real and imaginary parts of the shear modulus over a range of frequencies).…”

Section: Use Of Hydrodynamic Force Study For the Measurement Of Fluidmentioning

confidence: 99%

Effect of hydrodynamic force on microcantilever vibrations: Applications to liquid-phase chemical sensing

Dufour

Lemaire

Caillard

et al. 2014

Sensors and Actuators B: Chemical

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Abstract:At the microscale, cantilever vibrations depend not only on the microstructure's properties and geometry but also on the properties of the surrounding medium. In fact, when a microcantilever vibrates in a fluid, the fluid offers resistance to the motion of the beam. The study of the influence of the hydrodynamic force on the microcantilever's vibrational spectrum can be used to either (1) optimize the use of microcantilevers for chemical detection in liquid media or (2) extract the mechanical properties of the fluid. The classical method for application (1) in gas is to operate the microcantilever in the dynamic transverse bending mode for chemical detection. However, the performance of microcantilevers excited in this standard out-of-plane dynamic mode drastically decreases in viscous liquid media. When immersed in liquids, in order to limit the decrease of both the resonant frequency and the quality factor, and improve sensitivity in sensing applications, alternative vibration modes that primarily shear the fluid (rather than involving motion normal to the fluid/beam interface) have been studied and tested: these include inplane vibration modes (lateral bending mode and elongation mode). For application (2), the classical method to measure the rheological properties of fluids is to use a rheometer. However, such systems require sampling (no insitu measurements) and a relatively large sample volume (a few milliliters). Moreover, the frequency range is limited to low frequencies (less than 200Hz). To overcome the limitations of this classical method, an alternative method based on the use of silicon microcantilevers is presented. The method, which is based on the use of analytical equations for the hydrodynamic force, permits the measurement of the complex shear modulus of viscoelastic fluids over a wide frequency range.

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Section: Use Of Hydrodynamic Force Study For the Measurement Of Fluidmentioning

confidence: 99%

Effect of hydrodynamic force on microcantilever vibrations: Applications to liquid-phase chemical sensing

Dufour

Lemaire

Caillard

et al. 2014

Sensors and Actuators B: Chemical

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“…11 and 12, respectively. They are supposed to be complex fluids behaving according to linear viscoelasticity with our experimental set-up, a point that has been carefully checked in a previous work [23]. The limit to the linear regime depends on the amplitude of the applied pressure due to the cantilever motion and therefore on the amplitude of the driving voltage.…”

Section: Complex Fluidsmentioning

confidence: 99%

High-frequency viscoelastic measurements of fluids based on microcantilever sensing: New modeling and experimental issues

Lemaire

Caillard

Youssry

et al. 2013

Sensors and Actuators A: Physical

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In general, microrheology is carried out using active or passive particle-tracking techniques. In the present paper, a novel technique based on the out-of-plane bending vibrations of a microcantilever beam immersed into a liquid is proposed for microrheological property measurement. We propose to analytically link the damped beam motion with the rheological properties of the fluid in order to establish a dynamic rheogram which spans at least one decade of the kiloHertz frequency domain. The latest improvements in terms of both analytical modeling and experimental setup are detailed, along with a complete explanation of the calculation method. Four rheograms of Newtonian and non-Newtonian liquids obtained from the frequency response of three immersed cantilevers of different geometries are presented.

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“…The first of these permits the determination of both the mass density and viscosity of the fluid at the resonant frequency of the microcantilever in the fluid [28]; the second enables one to extract the same properties over a frequency range that includes the in-fluid resonant frequency [29]; two other methods are based on the same principle, but with the assumption that the fluid's mass density is known. These latter methods allow for the determination of the real and imaginary parts of the fluid's shear modulus, which characterize both the elasticity and viscosity of the fluid [30]. In this section we will focus on presenting a more detailed description of the second method (estimation of mass density and viscosity over a frequency range).…”

Section: Application To Measurement Of Fluid Rheological Propertiesmentioning

confidence: 99%

“…The microcantilevers were designed to be electromagnetically actuated [30]. For this purpose, a conducting path was deposited on the top surface of the microcantilever.…”

Section: Application To Measurement Of Fluid Rheological Propertiesmentioning

confidence: 99%

“…Nevertheless, the estimated viscosity gives an idea of the frequency-dependent behavior of this complex fluid but, due to its viscoelastic properties, the mass density is not consistent in this case. This problem may be overcome by utilizing one of the methods recently proposed [30], which incorporates the viscoelastic behavior of complex fluids.…”

Section: Application To Measurement Of Fluid Rheological Propertiesmentioning

confidence: 99%

See 1 more Smart Citation

Influence of fluid-structure interaction on microcantilever vibrations: applications to rheological fluid measurement and chemical detection

et al. 2013

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At the microscale, cantilever vibrations depend not only on the microstructure's properties and geometry but also on the properties of the surrounding medium. In fact, when a microcantilever vibrates in a fluid, the fluid offers resistance to the motion of the beam. The study of the influence of the hydrodynamic force on the microcantilever's vibrational spectrum can be used to either (1) optimize the use of microcantilevers for chemical detection in liquid media or (2) extract the mechanical properties of the fluid. The classical method for application (1) in gas is to operate the microcantilever in the dynamic transverse bending mode for chemical detection. However, the performance of microcantilevers excited in this standard out-of-plane dynamic mode drastically decreases in viscous liquid media. When immersed in liquids, in order to limit the decrease of both the resonant frequency and the quality factor, alternative vibration modes that primarily shear the fluid (rather than involving motion normal to the fluid/beam interface) have been studied and tested: these include inplane vibration modes (lateral bending mode and elongation mode). For application (2), the classical method to measure the rheological properties of fluids is to use a rheometer. To overcome the limitations of this classical method, an alternative method based on the use of silicon microcantilevers is presented. The method, which is based on the use of analytical equations for the hydrodynamic force, permits the measurement of the complex shear modulus of viscoelastic fluids over a wide frequency range.

show abstract

On-chip characterization of the viscoelasticity of complex fluids using microcantilevers

Cited by 18 publications

References 54 publications

Effect of hydrodynamic force on microcantilever vibrations: Applications to liquid-phase chemical sensing

Effect of hydrodynamic force on microcantilever vibrations: Applications to liquid-phase chemical sensing

High-frequency viscoelastic measurements of fluids based on microcantilever sensing: New modeling and experimental issues

Influence of fluid-structure interaction on microcantilever vibrations: applications to rheological fluid measurement and chemical detection

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