Acoustic focusing of beads and cells in hydrogel droplets [PDF]
Scientific Reports, 2021 The generation of hydrogel droplets using droplet microfluidics has emerged as a powerful tool with many applications in biology and medicine. Here, a microfluidic system to control the position of particles (beads or astrocyte cells) in hydrogel ...
Anna Fornell +3 more
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Dynamic acoustic focusing in photoacoustic transmitter [PDF]
Photoacoustics, 2021 Photoacoustic transmitter represents a promising substitute for conventional piezoelectric counterparts. However, lack of easy and effective method for dynamically manipulating the focused acoustic field is a common and tricky problem faced by current ...
Qi Li +5 more
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Acoustic focusing by a double layered acoustic grating
Journal of Sound and Vibration, 2023 Acoustic focusing has wide applications in many domains including non-destructive evaluation, medical diagnosis and particle manipulation. In the past decades, due to their outstanding capacity of wave manipulation, acoustic metasurfaces (AMSs) based on ...
Liangfen Du, Zeqing Sun, Zheng Fan
exaly +4 more sources
Enhancement in acoustic focusing of micro and nanoparticles by thinning a microfluidic device [PDF]
Royal Society Open Science, 2019 The manipulation of micro/nanoparticles has become increasingly important in biological and industrial fields. As a non-contact method for particle manipulation, acoustic focusing has been applied in sorting, enrichment and analysis of particles with ...
Nobutoshi Ota +6 more
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Research on the Processing Method of Acoustic Focusing Cavities Based on the Temperature Gradient
Applied Sciences, 2021 Aiming at the key factors affecting the quality and efficiency of high-energy in-beam machining, this paper studies the broadband acoustic focusing effect based on a discrete temperature gradient.
Liqun Wu +6 more
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Multi-frequency acoustic metasurface for extraordinary reflection and sound focusing
AIP Advances, 2016 We theoretically and numerically present the design of multi-frequency acoustic metasurfaces (MFAMs) with simple structure that can work not only at fundamental frequency, but also at their harmonic frequencies, which breaks the single frequency ...
Yi-Fan Zhu +6 more
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Integrated Ultrasound Device for Precision Bladder Volume Monitoring via Acoustic Focusing and Machine Learning [PDF]
Advanced ScienceBladder volume monitoring is critical for managing lower urinary tract dysfunctions, yet existing methods remain invasive or operator‐dependent and are unsuitable for continuous use. Here, we present a conformable wearable ultrasound system that combines
Long Long Cao +4 more
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High transmission acoustic focusing by impedance-matched acoustic meta-surfaces
Applied Physics Letters, 2016 Impedance is an important issue in the design of acoustic lenses because mismatched impedance is detrimental to real focusing applications. Here, we report two designs of acoustic lenses that focus acoustic waves in water and air, respectively.
Rasha AL JAHDALI
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Calculation for Acoustic Radiation Force from Rectangular Weakly Focusing Transducer Using the Ray Acoustic Model [PDF]
Archives of Acoustics, 2022 Based on the ray acoustic model, a new relationship between the radiation force and the acoustic power is studied for a rectangular weakly focusing transducer. The effect of pressure reflection coefficient on this model is discussed.
Lili Yu +3 more
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Role of gas nuclei in ultrasonic atomization in acoustic fountains: mechanisms and experimental evidence [PDF]
Ultrasonics SonochemistryUltrasonic atomization, particularly in the form of acoustic fountains, is widely used in various fields, but its underlying mechanisms remain incompletely understood, with ongoing debates between wave-driven and bubble-driven hypotheses.
Yandong Gao +4 more
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