High Frequency Ultrasonic Levitation of Red Blood Cells Aggregation

Lim, Hae Gyun; Kim, Kyungmin; Kim, Yeong-Geun; Park, Jeongwoo; Kim, Hyunhee; Heo, Dasom; Yoo, Jinhee

doi:10.1109/ultsym.2018.8579736

Cited by 4 publications

(7 citation statements)

References 9 publications

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“…A recent work in [166], manipulated the acoustic field by placing a set of metamaterial bricks in front of an 8 × 8 array of 40 kHz transducers. In 2018, the work in [167], demonstrated, that the single-beam acoustic tweezer (SBAT) had powerful lateral trapping forces that could levitate red blood cell (RBC) aggregation. A levitation method using two pairs of focusing ultrasonic transducers set up in confocal mode was proposed in [168].…”

Section: Single -Beam Methodsmentioning

confidence: 99%

A Non-Contact Manipulation for Robotic Applications: A Review on Acoustic Levitation

2022

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Robots play an important role all over the world in the industrial field in terms of dealing with various materials, performing duties quickly and high accuracy as well as in the pharmaceutical/chemical field since robots can handle some issues better than human. Robotic manipulation is the term used to describe how robots deal with many objects. This article reviews the contact and non-contact manipulation with their most common robotic applications and focusing on the non-contact manipulation since it can do specific tasks which contact manipulation cannot do. Reviewing of the robotic non-contact manipulation which include the metal-based robotic manipulation such as magnetic and electrostatic levitation and the non-metal-based robotic manipulation method such as aerodynamic and acoustic levitation have been made in this article. The main core of this article is acoustic levitation which considered one of the most important levitation and manipulation method due to the recent advancements that made it proper to deal with any kind of materials. Here, we review the renowned three methods of acoustic levitation that already using in robotic non-contact manipulation which are standing wave, near-field and single-beam acoustic levitation. Then, we present a performance characteristic of the reviewed methods and the summary of controlling strategies, followed by conclusion and future recommendations for acoustic levitation methods as a non-contact manipulation.

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Section: Single -Beam Methodsmentioning

confidence: 99%

A Non-Contact Manipulation for Robotic Applications: A Review on Acoustic Levitation

2022

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“…[8][9][10][11][12][13][14][15][16][17] Recently, we proposed a method of controlling the characteristics of ultrasonic transducers by using the shaping of a piezoelectric vibrator. 18) Since the resonant modes of a piezoelectric vibrator with nonuniform thickness are distributed depending on the thickness distribution of the vibrator, the thickness distribution of the piezoelectric vibrator can be determined to obtain resonance characteristics in a particular frequency band range. In this study, to examine the characteristic change depending on the shape of the vibrator, the surface of a piezoelectric plate is processed to fabricate a onesided concave piezoelectric vibrator.…”

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confidence: 99%

“…1. Theoretical analysis model of a piezoelectric vibrator with nonuniform thickness (a) and a cylindrical shell element (b) 18).…”

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confidence: 99%

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Characteristic analysis of a one-sided concave-type ultrasonic transducer

Lim

Kim

2019

Jpn. J. Appl. Phys.

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A method to control the characteristics of an ultrasonic transducer by the shaping of a piezoelectric vibrator was suggested. A one-sided concave piezoelectric vibrator was shaped from a piezoelectric plate, and an ultrasonic transducer made of the vibrator was examined in order to study its characteristics. The multiple resonant modes distributed in a frequency range of about 0.5–2 MHz were obtained and the −6 dB bandwidth of the transducer was about 65%–72%. An acoustic field analysis model which takes into consideration the source strength depending on the thickness of the piezoelectric vibrator was derived, and the change in the acoustic field distribution with the driving frequency was calculated. The calculated results were in good agreement with the experimental results.

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Behaviour of Acoustically Levitated Drops in Mid-Water

Ruiken,

Villwock,

Kraume

2023

Micromachines

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A low-impact acoustic levitation system has been developed to study immobilised single drops in liquid–liquid systems. The ability to observe liquid drops several millimetres in diameter for days enables fundamental research into a wide range of mechanisms. Non-invasive optical measurements with excellent optical accessibility are possible. This experimental work provides the basis for mass transfer studies, emphasizing the precise volume determination, signal noise, reproducibility, and the impact of the acoustic field on the drop and its surrounding environment. The setup can be effectively controlled and proves beneficial for research objectives provided that all liquid phases are entirely degassed, and there are no compressible voids present within the liquids. In addition to the precise, uniform, and reliable measurement conditions, we observed no acoustic streaming in the proximity of the drop and there was no significant vibration of the drop. Qualitative observations using rainbow schlieren deflectometry indicate that the nodal or anti-nodal planes of the standing waves can act as barriers to the dispersion of inhomogeneous dissolved substances in the continuous phase.

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High Frequency Ultrasonic Levitation of Red Blood Cells Aggregation

Cited by 4 publications

References 9 publications

A Non-Contact Manipulation for Robotic Applications: A Review on Acoustic Levitation

A Non-Contact Manipulation for Robotic Applications: A Review on Acoustic Levitation

Characteristic analysis of a one-sided concave-type ultrasonic transducer

Behaviour of Acoustically Levitated Drops in Mid-Water

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