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The Suppression of Spurious Modes in TC-SAW Resonators by the Application of Bent Metal Strips [PDF]
SensorsThis article investigates the use of bent metal strips on the top of a SiO2 layer for the suppression of spurious modes in temperature-compensated surface acoustic wave (TC-SAW) resonators employing a SiO2/Cu/128°YX-LiNbO3 structure.
Menghui Li +6 more
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Acoustophoretic trapping of particles by bubbles in microfluidics
Frontiers in Physics, 2023 We present in this paper a simple method to produce strategic acoustic particle capture sites in microfluidic channels in a controlled way. Air bubbles are intermittently injected into a micro-capillary with rectangular cross section during a flow motion
Itziar González +3 more
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Low-intensity continuous ultrasound to inhibit cancer cell migration
Frontiers in Cell and Developmental Biology, 2023 In recent years, it has been verified that collective cell migration is a fundamental step in tumor spreading and metastatic processes. In this paper, we demonstrate for the first time how low-intensity ultrasound produces long-term inhibition of ...
Itziar González +13 more
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Acoustophoretic particle manipulation in hybrid solid/gel resonators
Frontiers in Physics, 2022 This study presents a proof of concept to demonstrate the ability of ultrasounds to perform acoustophoretic processes in hybrid millifluidic resonators that include channels laterally embedded in extremely soft media with physical properties close to ...
Jon Luzuriaga +4 more
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Sensors, 2021 In this paper, we describe and present a Virtual Instrument, a tool that allows the determination of the electromechanical, dielectric, and elastic coefficients in polarised ferroelectric ceramic discs (piezoceramics) in the linear range, including all ...
Francisco Javier Jiménez +5 more
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Influence of Hydrodynamics and Hematocrit on Ultrasound-Induced Blood Plasmapheresis
Micromachines, 2020 Acoustophoretic blood plasma separation is based on cell enrichment processes driven by acoustic radiation forces. The combined influence of hematocrit and hydrodynamics has not yet been quantified in the literature for these processes acoustically ...
Itziar González +3 more
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Global Complex Roots and Poles Finding Algorithm in C × R Domain
IEEE Access, 2023 An algorithm to find the roots and poles of a complex function depending on two arguments (one complex and one real) is proposed. Such problems are common in many fields of science for instance in electromagnetism, acoustics, stability analyses ...
Sebastian Dziedziewicz +3 more
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Sensors, 2021 Recent developments in the field of microwave planar sensors have led to a renewed interest in industrial, chemical, biological and medical applications that are capable of performing real-time and non-invasive measurement of material properties.
Rammah Ali Alahnomi +6 more
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Enhanced Energy Harvesting of Flexural Waves in Elastic Beams by Bending Mode of Graded Resonators
Frontiers in Materials, 2021 We show efficient elastic energy transfer and wave confinement through a graded array of resonators attached to an elastic beam. Experiments demonstrate that flexural resonators of increasing lengths allow to reduce wave scattering and to achieve the ...
Jacopo Maria De Ponti +5 more
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Finesse of Stable Extrinsic Fiber Fabry-Pérot Cavities With Spherical Surfaces
IEEE Photonics Journal, 2020 In this work, we present a model for spectral transmittance of extrinsic fiber Fabry-Pérot cavities using paraxial Gaussian approximation and ray transfer matrices. The finesse is obtained through a Lorentzian fitting of the spectral transmittance
Jiwon Choi +3 more
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