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Zhu P, Simon I, Kokalari I, Kohane DS, Rwei AY. Miniaturized therapeutic systems for ultrasound-modulated drug delivery to the central and peripheral nervous system. Adv Drug Deliv Rev 2024; 208:115275. [PMID: 38442747 PMCID: PMC11031353 DOI: 10.1016/j.addr.2024.115275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/19/2024] [Accepted: 03/01/2024] [Indexed: 03/07/2024]
Abstract
Ultrasound is a promising technology to address challenges in drug delivery, including limited drug penetration across physiological barriers and ineffective targeting. Here we provide an overview of the significant advances made in recent years in overcoming technical and pharmacological barriers using ultrasound-assisted drug delivery to the central and peripheral nervous system. We commence by exploring the fundamental principles of ultrasound physics and its interaction with tissue. The mechanisms of ultrasonic-enhanced drug delivery are examined, as well as the relevant tissue barriers. We highlight drug transport through such tissue barriers utilizing insonation alone, in combination with ultrasound contrast agents (e.g., microbubbles), and through innovative particulate drug delivery systems. Furthermore, we review advances in systems and devices for providing therapeutic ultrasound, as their practicality and accessibility are crucial for clinical application.
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Affiliation(s)
- Pancheng Zhu
- Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, the Netherlands; State Key Laboratory of Mechanics and Control of Aerospace Structures, Nanjing University of Aeronautics & Astronautics, 210016, Nanjing, China; Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, China
| | - Ignasi Simon
- Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, the Netherlands
| | - Ida Kokalari
- Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, the Netherlands
| | - Daniel S Kohane
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.
| | - Alina Y Rwei
- Department of Chemical Engineering, Delft University of Technology, 2629 HZ, Delft, the Netherlands.
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2
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Nor-Azman NA, Ghasemian MB, Fuchs R, Liu L, Widjajana MS, Yu R, Chiu SH, Idrus-Saidi SA, Flores N, Chi Y, Tang J, Kalantar-Zadeh K. Mechanism behind the Controlled Generation of Liquid Metal Nanoparticles by Mechanical Agitation. ACS NANO 2024; 18:11139-11152. [PMID: 38620061 DOI: 10.1021/acsnano.3c12638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
The size-controlled synthesis of liquid metal nanoparticles is necessary in a variety of applications. Sonication is a common method for breaking down bulk liquid metals into small particles, yet the influence of critical factors such as liquid metal composition has remained elusive. Our study employs high-speed imaging to unravel the mechanism of liquid metal particle formation during mechanical agitation. Gallium-based liquid metals, with and without secondary metals of bismuth, indium, and tin, are analyzed to observe the effect of cavitation and surface eruption during sonication and particle release. The impact of the secondary metal inclusion is investigated on liquid metals' surface tension, solution turbidity, and size distribution of the generated particles. Our work evidences that there is an inverse relationship between the surface tension and the ability of liquid metals to be broken down by sonication. We show that even for 0.22 at. % of bismuth in gallium, the surface tension is significantly decreased from 558 to 417 mN/m (measured in Milli-Q water), resulting in an enhanced particle generation rate: 3.6 times increase in turbidity and ∼43% reduction in the size of particles for bismuth in gallium liquid alloy compared to liquid gallium for the same sonication duration. The effect of particles' size on the photocatalysis of the annealed particles is also presented to show the applicability of the process in a proof-of-concept demonstration. This work contributes to a broader understanding of the synthesis of nanoparticles, with controlled size and characteristics, via mechanical agitation of liquid metals for diverse applications.
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Affiliation(s)
- Nur-Adania Nor-Azman
- School of Chemical and Biomolecular Engineering, University of Sydney, Darlington, NSW 2008, Australia
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, NSW 2052, Australia
| | - Mohammad B Ghasemian
- School of Chemical and Biomolecular Engineering, University of Sydney, Darlington, NSW 2008, Australia
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, NSW 2052, Australia
| | - Richard Fuchs
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, NSW 2052, Australia
| | - Li Liu
- School of Chemical and Biomolecular Engineering, University of Sydney, Darlington, NSW 2008, Australia
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, NSW 2052, Australia
| | - Moonika S Widjajana
- School of Chemical and Biomolecular Engineering, University of Sydney, Darlington, NSW 2008, Australia
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, NSW 2052, Australia
| | - Ruohan Yu
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, NSW 2052, Australia
| | - Shih-Hao Chiu
- School of Chemical and Biomolecular Engineering, University of Sydney, Darlington, NSW 2008, Australia
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, NSW 2052, Australia
| | - Shuhada A Idrus-Saidi
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai, Johor Bahru, Johor 81310, Malaysia
- Centre of Lipids Engineering and Applied Research (CLEAR), Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, Skudai, Johor Bahru, Johor 81310, Malaysia
| | - Nieves Flores
- School of Chemical and Biomolecular Engineering, University of Sydney, Darlington, NSW 2008, Australia
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, NSW 2052, Australia
| | - Yuan Chi
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, NSW 2052, Australia
| | - Jianbo Tang
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, NSW 2052, Australia
| | - Kourosh Kalantar-Zadeh
- School of Chemical and Biomolecular Engineering, University of Sydney, Darlington, NSW 2008, Australia
- School of Chemical Engineering, University of New South Wales (UNSW), Kensington, NSW 2052, Australia
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3
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Shen L, Pang S, Zhong M, Sun Y, Qayum A, Liu Y, Rashid A, Xu B, Liang Q, Ma H, Ren X. A comprehensive review of ultrasonic assisted extraction (UAE) for bioactive components: Principles, advantages, equipment, and combined technologies. ULTRASONICS SONOCHEMISTRY 2023; 101:106646. [PMID: 37862945 PMCID: PMC10594638 DOI: 10.1016/j.ultsonch.2023.106646] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/23/2023] [Accepted: 10/07/2023] [Indexed: 10/22/2023]
Abstract
The increasing focus on health and well-being has sparked a rising interest in bioactive components in the food, pharmaceutical, and nutraceutical industries. These components are gaining popularity due to their potential benefits for overall health. The growing interest has resulted in a continuous rise in demand for bioactive components, leading to the exploration of both edible and non-edible sources to obtain these valuable substances. Traditional extraction methods like solvent extraction, distillation, and pressing have certain drawbacks, including lower extraction efficiency, reduced yield, and the use of significant amounts of solvents or resources. Furthermore, certain extraction methods necessitate high temperatures, which can adversely affect certain bioactive components. Consequently, researchers are exploring non-thermal technologies to develop environmentally friendly and efficient extraction methods. Ultrasonic-assisted extraction (UAE) is recognized as an environmentally friendly and highly efficient extraction technology. The UAE has the potential to minimize or eliminate the need for organic solvents, thereby reducing its impact on the environment. Additionally, UAE has been found to significantly enhance the production of target bioactive components, making it an attractive method in the industry. The emergence of ultrasonic assisted extraction equipment (UAEE) has presented novel opportunities for research in chemistry, biology, pharmaceuticals, food, and other related fields. However, there is still a need for further investigation into the main components and working modes of UAEE, as current understanding in this area remains limited. Therefore, additional research and exploration are necessary to enhance our knowledge and optimize the application of UAEE. The core aim of this review is to gain a comprehensive understanding of the principles, benefits and impact on bioactive components of UAE, explore the different types of equipment used in this technique, examine the various working modes and control parameters employed in UAE, and provide a detailed overview of the blending of UAE with other emerging extraction technologies. In conclusion, the future development of UAEE is envisioned to focus on achieving increased efficiency, reduced costs, enhanced safety, and improved reliability. These key areas of advancement aim to optimize the performance and practicality of UAEE, making it a more efficient, cost-effective, and reliable extraction technology.
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Affiliation(s)
- Lipeng Shen
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Shuixiu Pang
- Zhongke Zhigu International Pharmaceutical Biotechnology (Guangdong) Co., Ltd, Guikeng Village, Chuangxing Avenue, Gaoxin District, Qingyuan, Guangdong 511538, China
| | - Mingming Zhong
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Yufan Sun
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Abdul Qayum
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Yuxuan Liu
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Arif Rashid
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Baoguo Xu
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Qiufang Liang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Xiaofeng Ren
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China.
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Liu S, Kong T, Feng Y, Fan Y, Yu J, Duan Y, Cai M, Hu K, Ma H, Zhang H. Effects of slit dual-frequency ultrasound-assisted pulping on the structure, functional properties and antioxidant activity of Lycium barbarum proteins and in situ real-time monitoring process. ULTRASONICS SONOCHEMISTRY 2023; 101:106696. [PMID: 37988957 PMCID: PMC10696417 DOI: 10.1016/j.ultsonch.2023.106696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 11/09/2023] [Accepted: 11/13/2023] [Indexed: 11/23/2023]
Abstract
To improve the protein dissolution rate and the quality of fresh Lycium barbarum pulp (LBP), we optimized the slit dual-frequency ultrasound-assisted pulping process, explored the dissolution kinetics of Lycium barbarum protein (LBPr), and established a near-infrared spectroscopy in situ real-time monitoring model for LBPr dissolution through spectral information analysis and chemometric methods. The results showed that under optimal conditions (dual-frequency 28-33 kHz, 300 W, 31 min, 40 °C, interval ratio 5:2 s/s), ultrasonic treatment not only significantly increased LBPr dissolution rate (increased by 71.48 %, p < 0.05), improved other nutrient contents and color, but also reduced the protein particle size, changed the amino acid composition ratio and protein structure, and increased the surface hydrophobicity, zeta potential, and free sulfhydryl content of protein, as well as the antioxidant activity of LBPr. In addition, ultrasonication significantly improved the functional properties of the protein, including thermal stability, foaming, emulsification and oil absorption capacity. Furthermore, the real-time monitoring model of the dissolution process was able to quantitatively predict the dissolution rate of LBPr with good calibration and prediction performance (Rc = 0.9835, RMSECV = 2.174, Rp = 0.9841, RMSEP = 1.206). These findings indicated that dual-frequency ultrasound has great potential to improve the quality of LBP and may provide a theoretical basis for the establishment of an intelligent control system in the industrialized production of LBP and the functional development of LBPr.
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Affiliation(s)
- Shuhan Liu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Tianyu Kong
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuqin Feng
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yanli Fan
- School of Food & Wine, Ningxia University, Yinchuan 750021, China
| | - Junwei Yu
- Ningxia Zhongning Goji Industry Innovation Research Institute, Zhongning 755100, China
| | - Yuqing Duan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China.
| | - Meihong Cai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Kai Hu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Haihui Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
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Dutta S, Noh S, Gual RS, Chen X, Pané S, Nelson BJ, Choi H. Recent Developments in Metallic Degradable Micromotors for Biomedical and Environmental Remediation Applications. NANO-MICRO LETTERS 2023; 16:41. [PMID: 38032424 PMCID: PMC10689718 DOI: 10.1007/s40820-023-01259-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023]
Abstract
Synthetic micromotor has gained substantial attention in biomedicine and environmental remediation. Metal-based degradable micromotor composed of magnesium (Mg), zinc (Zn), and iron (Fe) have promise due to their nontoxic fuel-free propulsion, favorable biocompatibility, and safe excretion of degradation products Recent advances in degradable metallic micromotor have shown their fast movement in complex biological media, efficient cargo delivery and favorable biocompatibility. A noteworthy number of degradable metal-based micromotors employ bubble propulsion, utilizing water as fuel to generate hydrogen bubbles. This novel feature has projected degradable metallic micromotors for active in vivo drug delivery applications. In addition, understanding the degradation mechanism of these micromotors is also a key parameter for their design and performance. Its propulsion efficiency and life span govern the overall performance of a degradable metallic micromotor. Here we review the design and recent advancements of metallic degradable micromotors. Furthermore, we describe the controlled degradation, efficient in vivo drug delivery, and built-in acid neutralization capabilities of degradable micromotors with versatile biomedical applications. Moreover, we discuss micromotors' efficacy in detecting and destroying environmental pollutants. Finally, we address the limitations and future research directions of degradable metallic micromotors.
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Affiliation(s)
- Sourav Dutta
- Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
- DGIST-ETH Microrobotics Research Center, DGIST, Daegu, 42988, Republic of Korea
| | - Seungmin Noh
- Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
- DGIST-ETH Microrobotics Research Center, DGIST, Daegu, 42988, Republic of Korea
| | - Roger Sanchis Gual
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, 8092, Zurich, Switzerland
| | - Xiangzhong Chen
- Institute of Optoelectronics, State Key Laboratory of Photovoltaic Science and Technology, Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception, Fudan University, Shanghai, 200433, People's Republic of China
| | - Salvador Pané
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, 8092, Zurich, Switzerland
| | - Bradley J Nelson
- Multi-Scale Robotics Lab, Institute of Robotics and Intelligent Systems, ETH Zurich, 8092, Zurich, Switzerland
| | - Hongsoo Choi
- Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea.
- DGIST-ETH Microrobotics Research Center, DGIST, Daegu, 42988, Republic of Korea.
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6
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Qin D, Yang Q, Lei S, Fu J, Ji X, Wang X. Investigation of interaction effects on dual-frequency driven cavitation dynamics in a two-bubble system. ULTRASONICS SONOCHEMISTRY 2023; 99:106586. [PMID: 37688945 PMCID: PMC10498094 DOI: 10.1016/j.ultsonch.2023.106586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/27/2023] [Accepted: 09/03/2023] [Indexed: 09/11/2023]
Abstract
The cavitation dynamics of a two-bubble system in viscoelastic media excited by dual-frequency ultrasound is studied numerically with a focus on the effects of inter-bubble interactions. Compared to the isolated bubble cases, the enhancement or suppression effects can be exerted on the amplitude and nonlinearity of the bubble oscillations to different degrees. Moreover, the interaction effects are found to be highly sensitive to multiple paramount parameters related to the two-bubble system, the dual-frequency ultrasound and the medium viscoelasticity. Specifically, the larger bubble of a two-bubble system shows a stronger effect on the smaller one, and this effect becomes more pronounced when the larger bubble undergoes harmonic and/or subharmonic resonances as well as the two bubbles get closer (e.g., d0 < 100 μm). For the influences of the dual-frequency excitation, the results show that the bubbles can achieve enhanced harmonic and/or subharmonic oscillations as the frequency combinations with small frequency differences (e.g., Δf < 0.2 MHz) close to the corresponding resonance frequencies of bubbles, and the interaction effects are consequently intensified. Similarly, the bubble oscillations and the interaction effects can also be enhanced as the acoustic pressure amplitude of each frequency component is equal and the pressure amplitude pA increases. Above a pressure threshold (pA = 215 kPa), a larger bubble undergoes period 2 (P2) oscillations, which can force a smaller bubble to change its oscillation pattern from period 1 (P1) into P2 oscillations. In addition, it is found that the medium viscosity dampens the bubble oscillations while the medium elasticity affects the bubble resonances, accordingly exhibiting stronger interaction effects at smaller viscosities (e.g., μ < 4 mPa·s) or certain elasticities (approximately G = 70-120 kPa, G = 160-200 kPa and G = 640-780 kPa) at which the bubble resonances occur. The study can contribute to a better understanding of the complex dynamic behaviors of interacting cavitation bubbles in viscoelastic tissues for high efficient cavitation-mediated biomedical applications using dual-frequency ultrasound.
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Affiliation(s)
- Dui Qin
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing, People's Republic of China; Postdoctoral Workstation of Chongqing General Hospital, Chongqing, People's Republic of China.
| | - Qianru Yang
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing, People's Republic of China
| | - Shuang Lei
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing, People's Republic of China
| | - Jia Fu
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing, People's Republic of China
| | - Xiaojuan Ji
- Postdoctoral Workstation of Chongqing General Hospital, Chongqing, People's Republic of China; Department of Ultrasound, Chongqing General Hospital, Chongqing, People's Republic of China.
| | - Xiuxin Wang
- Chongqing Engineering Research Center of Medical Electronics and Information Technology, Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing, People's Republic of China.
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Wang Y, Chen D, Wu P. Multi-bubble scattering acoustic fields in viscoelastic tissues under dual-frequency ultrasound. ULTRASONICS SONOCHEMISTRY 2023; 99:106585. [PMID: 37683413 PMCID: PMC10498095 DOI: 10.1016/j.ultsonch.2023.106585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/29/2023] [Accepted: 09/03/2023] [Indexed: 09/10/2023]
Abstract
Bubbles are widely used in the medical field due to their strong acoustic scattering properties, and the interaction between bubbles affects the scattering acoustic field caused by the bubble cluster. In this study, the dynamic equations of bubbles oscillating in viscoelastic tissues are solved numerically. The effect of bubble interaction on the scattered acoustic pressure under dual-frequency ultrasound is analyzed. In addition, the frequency spectra of the scattered acoustic waves due to the bubbles with and without considering the interaction are compared. The results show that the suppression or enlargement of the scattered sound pressure caused by the interaction between bubbles is related to the bubble radius and the incident frequency. Moreover, when the incident frequency is equal to the resonant frequency of the bubble with equilibrium radius R0, the effect of resonant bubbles is stronger than that of non-resonant bubbles. Meanwhile, for the multi-bubble system with a small bubble number density, the total response of the bubble cluster can be approximated as an algebraic sum of the dynamical behavior of individual bubbles.
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Affiliation(s)
- Yu Wang
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China; Beijing Engineering Research Center of Sea Deep Drilling and Exploration, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
| | - Dehua Chen
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China; Beijing Engineering Research Center of Sea Deep Drilling and Exploration, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.
| | - Pengfei Wu
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China; Beijing Engineering Research Center of Sea Deep Drilling and Exploration, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
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Kong T, Liu S, Feng Y, Fan Y, Yu J, Zhang H, Cai M, Ma H, Duan Y. Slit dual-frequency ultrasound-assisted pulping of Lycium barbarum fresh fruit to improve the dissolution of polysaccharides and in situ real-time monitoring. ULTRASONICS SONOCHEMISTRY 2023; 98:106509. [PMID: 37406542 PMCID: PMC10422114 DOI: 10.1016/j.ultsonch.2023.106509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/18/2023] [Accepted: 06/26/2023] [Indexed: 07/07/2023]
Abstract
In this study, the slit dual-frequency ultrasound-assisted pulping of fresh Lycium barbarum fruit was optimized to improve the dissolution of polysaccharides. The microscopic mechanism of polysaccharide dissolution was explored through establishing polysaccharides dissolution kinetics model and visualizing the multi-physical fields during ultrasonic process, and an in situ real-time monitoring model was established by the relationship between the chemical value and spectral information collected by near-infrared spectroscopy. The results showed that, under optimal conditions, treatment with ultrasound (28-33 kHz, 250 W, 30 min) not only significantly promoted the dissolution rate of polysaccharides in Lycium barbarum pulp (LBPPs, increased by 43.64 %, p < 0.01), reduced its molecular weight, but also improved the arabinose molar ratio, the uniformity of polysaccharide particles, and the antioxidant activity of LBPPs. Correlation analysis indicated that ultrasonic treatment is closely related to LBPPs content, particle size and scavenging capacity against superoxide anion radicals (ptotal sugar content < 0.01, pparticle size < 0.05 and psuperoxide anion scavenging < 0.05). Moreover, the in situ real-time monitoring model for the pulping process could quantitatively predict LBPPs dissolution rate and its superoxide anion radical scavenging capacity with good calibration and prediction performance (Rc = 0.9841, RMSECV = 0.0873, Rp = 0.9772, RMSEP = 0.0530; Rc = 0.9874, RMSECV = 0.1246, Rp = 0.9868, RMSEP = 0.0665). These results indicated that slit dual-frequency ultrasound has great potential in improving the quality of Lycium barbarum pulp, which may provide theoretical support for the industrial development of intelligent systems for polysaccharides preparation.
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Affiliation(s)
- Tianyu Kong
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shuhan Liu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuqin Feng
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yanli Fan
- School of Food & Wine, Ningxia University, Yinchuan 750021, China
| | - Junwei Yu
- Ningxia Zhongning Goji Industry Innovation Research Institute Co., Ltd, Zhongning 755100, China
| | - Haihui Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Meihong Cai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Yuqing Duan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China; Nourse Pet Nutrition Jiangsu Research Institute, Zhenjiang 212009, China.
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Kou S, Chen W, Wu Y, Zhao G. Translation of cavitation bubble near the different walls. ULTRASONICS SONOCHEMISTRY 2023; 94:106352. [PMID: 36893682 PMCID: PMC10015231 DOI: 10.1016/j.ultsonch.2023.106352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/15/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
The interaction between spherical cavitation bubble and flat wall is transformed into that between the real bubble and imaging bubble by the method of images. Firstly, we investigate the dynamics of real bubble and matched, inversed or mis-matched imaging bubble driven by a small amplitude ultrasound, revealing the characteristics of the interaction between cavitation bubble and rigid, soft and impedance walls. Then, we emphatically study the dynamics of real bubble and mis-matched imaging bubble driven by a finite amplitude ultrasound, and the interaction characteristics between cavitation bubble and real impedance wall are revealed. The results show that the cavitation bubble is always close to the rigid wall and far away from the soft wall; For the impedance wall, whether the cavitation bubble is far away or close depends on the specific wall parameters. Moreover, the direction and magnitude of bubble's translation velocity can be changed by adjusting the driving parameters. Understanding the interaction between cavitation bubble and impedance wall is of great significance for efficient application of ultrasonic cavitation.
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Affiliation(s)
- Shaoyang Kou
- Key Laboratory of Modern Acoustics, Ministry of Education, Institution of Acoustics, Nanjing University, Nanjing 210093, China
| | - Weizhong Chen
- Key Laboratory of Modern Acoustics, Ministry of Education, Institution of Acoustics, Nanjing University, Nanjing 210093, China.
| | - Yaorong Wu
- Key Laboratory of Modern Acoustics, Ministry of Education, Institution of Acoustics, Nanjing University, Nanjing 210093, China
| | - Guoying Zhao
- Key Laboratory of Modern Acoustics, Ministry of Education, Institution of Acoustics, Nanjing University, Nanjing 210093, China
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10
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Qin D, Lei S, Wang X, Zhong X, Ji X, Li Z. Resonance behaviors of encapsulated microbubbles oscillating nonlinearly with ultrasonic excitation. ULTRASONICS SONOCHEMISTRY 2023; 94:106334. [PMID: 36805411 PMCID: PMC9969295 DOI: 10.1016/j.ultsonch.2023.106334] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/06/2023] [Accepted: 02/13/2023] [Indexed: 06/06/2023]
Abstract
The resonance behaviors of a few lipid-coated microbubbles acoustically activated in viscoelastic media were comprehensively examined via radius response analysis. The size polydispersity and random spatial distribution of the interacting microbubbles, the rheological properties of the lipid shell and the viscoelasticity of the surrounding medium were considered simultaneously. The obtained radius response curves present a successive occurrence of linear resonances, nonlinear harmonic and sub-harmonic resonances with the acoustic pressure increasing. The microbubble resonance is radius-, pressure- and frequency-dependent. Specifically, the maximum bubble expansion ratio at the main resonance peak increases but the resonant radius decreases as the ultrasound pressure increases, while both of them decrease with the ultrasound frequency increasing. Moreover, compared to an isolated microbubble case, it is found that large microbubbles in close proximity prominently suppress the resonant oscillations while slightly increase the resonant radii for both harmonic and subharmonic resonances, even leading to the disappearance of the subharmonic resonance with the influences increasing to a certain degree. In addition, the results also suggest that both the encapsulating shell and surrounding medium can substantially dampen the harmonic and subharmonic resonances while increase the resonant radii, which seem to be affected by the medium viscoelasticity to a greater degree rather than the shell properties. This work offers valuable insights into the resonance behaviors of microbubbles oscillating in viscoelastic biological media, greatly contributing to further optimizing their biomedical applications.
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Affiliation(s)
- Dui Qin
- Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing, People's Republic of China; Postdoctoral Workstation of Chongqing People's Hospital, Chongqing, People's Republic of China.
| | - Shuang Lei
- Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing, People's Republic of China
| | - Xia Wang
- Department of Respiratory and Critical Care Medicine, Chonggang General Hospital Affiliated to Chongqing University of Posts and Telecommunications, Chongqing, People's Republic of China
| | - Xianhua Zhong
- Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing, People's Republic of China
| | - Xiaojuan Ji
- Postdoctoral Workstation of Chongqing People's Hospital, Chongqing, People's Republic of China; Department of Ultrasound, Chongqing People's Hospital, Chongqing, People's Republic of China
| | - Zhangyong Li
- Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing, People's Republic of China.
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11
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Klapcsik K, Hegedűs F. Numerical investigation of the translational motion of bubbles: The comparison of capabilities of the time-resolved and the time-averaged methods. ULTRASONICS SONOCHEMISTRY 2023; 92:106253. [PMID: 36512939 PMCID: PMC9761385 DOI: 10.1016/j.ultsonch.2022.106253] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/16/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
In the present study, the accuracies of two different numerical approaches used to model the translational motion of acoustic cavitational bubble in a standing acoustic field are compared. The less accurate but less computational demanding approach is to decouple the equation of translational motion from the radial oscillation, and solve it by calculating the time-averaged forces exerted on the bubble for one acoustic cycle. The second approach is to solve the coupled ordinary differential equations directly, which provides more accurate results with higher computational effort. The investigations are carried out in the parameter space of the driving frequency, pressure amplitude and equilibrium radius. Results showed that both models are capable to reveal stable equilibrium positions; however, in the case of oscillatory solutions, the difference in terms of translational frequency may be more than three fold, and the amplitude of translational motion obtained by the time-averaged method is roughly 1.5 times higher compared to the time-resolved solution at particular sets of parameters. This observation implies that where the transient behaviour is important, the time-resolved approach is the proper choice for reliable results.
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Affiliation(s)
- Kálmán Klapcsik
- Department of Hydrodynamic Systems, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary.
| | - Ferenc Hegedűs
- Department of Hydrodynamic Systems, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary.
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12
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Wang X, Ning Z, Lv M, Wu P, Sun C, Liu Y. Transition mechanisms of translational motions of bubbles in an ultrasonic field. ULTRASONICS SONOCHEMISTRY 2023; 92:106271. [PMID: 36563437 PMCID: PMC9800540 DOI: 10.1016/j.ultsonch.2022.106271] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
The translation behaviors of oscillating bubbles are closely related to the polymerizations and dispersions between them, which are crucial for the ultrasonic cavitation effect. In this study, six types of translational motion of bubbles with a wide range of sizes (2-100 μm) in the R01-R02 plane are investigated. Our results demonstrate that in addition (to the 2nd order harmonic), the 1/2 order subharmonic can change the bubble pairs from the three states of the attraction, stable after attraction, and repulsion to that of the repulsion, coalescence, and attraction, respectively. Furthermore, within the range of the main resonance radius and the 1/2 order subharmonic resonance radius, the chaotic bubble pairs with alternating attractive and repulsive forces appear in the region between the coalescence pairs and stable pairs after attraction. Finally, the corresponding physical mechanisms of the chaotic translational motions are also revealed.
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Affiliation(s)
- Xiaojiao Wang
- Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, China
| | - Zhi Ning
- Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, China.
| | - Ming Lv
- Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, China
| | - Pengfei Wu
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.
| | - Chunhua Sun
- Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, China; Shanghai Marine Diesel Engine Research Institute, Shanghai, China
| | - Yechang Liu
- Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, China
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13
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Kumar G, Upadhyay S, Yadav DK, Malakar S, Dhurve P, Suri S. Application of ultrasound technology for extraction of color pigments from plant sources and their potential bio‐functional properties: A review. J FOOD PROCESS ENG 2022. [DOI: 10.1111/jfpe.14238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Gaurav Kumar
- Department of Food Engineering National Institute of Food Technology Entrepreneurship and Management Sonipat India
| | - Srishti Upadhyay
- Department of Food Engineering National Institute of Food Technology Entrepreneurship and Management Sonipat India
| | - Dhiraj Kumar Yadav
- Department of Food Engineering National Institute of Food Technology Entrepreneurship and Management Sonipat India
| | - Santanu Malakar
- Department of Food Engineering National Institute of Food Technology Entrepreneurship and Management Sonipat India
- Department of Food Technology Rajiv Gandhi University Doimukh India
| | - Priyanka Dhurve
- Department of Food Engineering National Institute of Food Technology Entrepreneurship and Management Sonipat India
| | - Shweta Suri
- Department of Food Engineering National Institute of Food Technology Entrepreneurship and Management Sonipat India
- Amity Institute of Food Technology (AIFT) Amity University Uttar Pradesh Noida India
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14
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Sepehrirahnama S, Ray Mohapatra A, Oberst S, Chiang YK, Powell DA, Lim KM. Acoustofluidics 24: theory and experimental measurements of acoustic interaction force. LAB ON A CHIP 2022; 22:3290-3313. [PMID: 35969199 DOI: 10.1039/d2lc00447j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The motion of small objects in acoustophoresis depends on the acoustic radiation force and torque. These are nonlinear phenomena originating from wave scattering, and consist of primary and secondary components. The primary radiation force is the force acting on an object due to the incident field, in the absence of other objects. The secondary component, known as acoustic interaction force, accounts for the interaction among objects, and contributes to the clustering patterns of objects, as commonly observed in experiments. In this tutorial, the theory of acoustic interaction forces is presented using the force potential and partial-wave expansion approaches, and the distinguishing features of these forces such as rotational coupling and non-reciprocity are described. Theoretical results are compared to experimental measurements of interaction forces using a glass micro-capillary setup to explain the practical challenges. Finally, the phenomenon of clustering patterns induced by the close-range interaction of objects is demonstrated to point out the considerations about multiple collision and the predicted clustering patterns entirely due to the interaction force. Understanding the principles of acoustic interaction enables us to develop novel acoustofluidic applications beyond the typical processing of large populations of particles and with focus on the controlled manipulation of small clusters.
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Affiliation(s)
- Shahrokh Sepehrirahnama
- Centre for Audio, Acoustics and Vibration, University of Technology Sydney, Sydney, Australia.
| | - Abhishek Ray Mohapatra
- Mechanical Engineering Department, National University of Singapore, Singapore 117575, Singapore
| | - Sebastian Oberst
- Centre for Audio, Acoustics and Vibration, University of Technology Sydney, Sydney, Australia.
- School of Engineering and Information Technology, University of New South Wales, Canberra, Australia
| | - Yan Kei Chiang
- School of Engineering and Information Technology, University of New South Wales, Canberra, Australia
- Centre for Audio, Acoustics and Vibration, University of Technology Sydney, Sydney, Australia.
| | - David A Powell
- School of Engineering and Information Technology, University of New South Wales, Canberra, Australia
| | - Kian-Meng Lim
- Mechanical Engineering Department, National University of Singapore, Singapore 117575, Singapore
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15
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Khan AH, Jiang X, Kaushik A, Nair HS, Edirisinghe M, Mercado-Shekhar KP, Shekhar H, Dalvi SV. Combining Ultrasound and Capillary-Embedded T-Junction Microfluidic Devices to Scale Up the Production of Narrow-Sized Microbubbles through Acoustic Fragmentation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:10288-10304. [PMID: 35943351 DOI: 10.1021/acs.langmuir.2c01676] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Microbubbles are tiny gas-filled bubbles that have a variety of applications in ultrasound imaging and therapeutic drug delivery. Microbubbles can be synthesized using a number of techniques including sonication, amalgamation, and saline shaking. These approaches can produce highly concentrated microbubble suspensions but offer minimal control over the size and polydispersity of the microbubbles. One of the simplest and effective methods for producing monodisperse microbubbles is capillary-embedded T-junction microfluidic devices, which offer great control over the microbubble size. However, lower production rates (∼200 bubbles/s) and large microbubble sizes (∼300 μm) limit the applicability of such devices for biomedical applications. To overcome the limitations of these technologies, we demonstrate in this work an alternative approach to combine a capillary-embedded T-junction device with ultrasound to enhance the generation of narrow-sized microbubbles in aqueous suspensions. Two T-junction microfluidic devices were connected in parallel and combined with an ultrasonic horn to produce lipid-coated SF6 core microbubbles in the size range of 1-8 μm. The rate of microbubble production was found to increase from 180 microbubbles/s in the absence of ultrasound to (6.5 ± 1.2) × 106 bubble/s in the presence of ultrasound (100% ultrasound amplitude). When stored in a closed environment, the microbubbles were observed to be stable for up to 30 days, with the concentration of the microbubble suspension decreasing from ∼2.81 × 109/mL to ∼2.3 × 106/mL and the size changing from 1.73 ± 0.2 to 1.45 ± 0.3 μm at the end of 30 days. The acoustic response of these microbubbles was examined using broadband attenuation spectroscopy, and flow phantom imaging was performed to determine the ability of these microbubble suspensions to enhance the contrast relative to the surrounding tissue. Overall, this approach of coupling ultrasound with microfluidic parallelization enabled the continuous production of stable microbubbles at high production rates and low polydispersity using simple T-junction devices.
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Affiliation(s)
- Aaqib H Khan
- Chemical Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India
| | - Xinyue Jiang
- Department of Mechanical Engineering, University College London (UCL), London WC1E 7JE, U.K
| | - Anuj Kaushik
- Electrical Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India
| | - Hari S Nair
- Biological Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India
| | - Mohan Edirisinghe
- Department of Mechanical Engineering, University College London (UCL), London WC1E 7JE, U.K
| | - Karla P Mercado-Shekhar
- Biological Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India
| | - Himanshu Shekhar
- Electrical Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India
| | - Sameer V Dalvi
- Chemical Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382355, Gujarat, India
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16
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Hua Y, Zhang H, Fu Q, Feng Y, Duan Y, Ma H. Effects of Ultrasound Modification with Different Frequency Modes on the Structure, Chain Conformation, and Immune Activity of Polysaccharides from Lentinus edodes. Foods 2022; 11:foods11162470. [PMID: 36010471 PMCID: PMC9407330 DOI: 10.3390/foods11162470] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/11/2022] [Accepted: 08/12/2022] [Indexed: 11/21/2022] Open
Abstract
Highlights Abstract The aim of this study was to investigate the effects of ultrasound with different frequency modes on the chemical structure, chain conformation, and immune activity of lentinan from Lentinus edodes; the structure–activity relationship of lentinan was also discussed. The results showed that, compared with original lentinan (extracted using hot water), although ultrasonic treatment did not change the monosaccharide composition and main functional groups of lentinan, it significantly changed its chain conformation. Especially at 60, 40/60, and 20/40/60 kHz, according to atomic force microscopy and solution chain conformation parameters, lentinan transformed from a rigid triple-helix chain to a flexible single-helix chain, and the side-chain was severely broken. Under this condition, lentinan had the worst immune activity. However, at 20/40 and 20/60 kHz, the rigid triple-helix chain transformed into a loose and flexible triple-helix chain, showing the strongest immune activity. These results indicated that dual-frequency ultrasound had significant effects on the conformation of lentinan, and the conformation characteristics of polysaccharide chain such as spiral number, stiffness and flexibility, and side-chain played an important role in immune activity. This study shows the great potential of ultrasound with different frequency modes in carbohydrate food processing, which may have important reference value and practical significance.
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Affiliation(s)
- Yu Hua
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Haihui Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
- Correspondence:
| | - Qian Fu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuqin Feng
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuqing Duan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
- Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
| | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
- Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China
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17
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Zheng X, Wang X, Zhang Y, Zhang Y. A single oscillating bubble in liquids with high Mach number. ULTRASONICS SONOCHEMISTRY 2022; 85:105985. [PMID: 35344862 PMCID: PMC8958539 DOI: 10.1016/j.ultsonch.2022.105985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 03/05/2022] [Accepted: 03/18/2022] [Indexed: 05/10/2023]
Abstract
The oscillation characteristics of a single bubble and its induced radiation pressure and the dissipated power are essential for a wide range of applications. For bubble oscillations with high Mach number, the influence of the liquid compressibility is significantly strong and should be fully considered. In the present paper, the bubble wall motion equation with the second-order Mach number is employed for investigating a free oscillating bubble in the liquid with numerical and experimental verifications. For the purpose of comparisons, the revised Keller-Miksis equation up to the first-order Mach number is solved with the same conditions (e.g. the initial conditions and the ambient pressure). Through our simulations, comparing with the predictions by the first-order equation, we find that: (1) The bubble radius, the bubble wall radial velocity and the bubble wall radial acceleration predicted by the second-order equation with high Mach number are significantly different respectively, and the dimensionless differences increase with the increase of the Mach number. (2) The valid prediction range of the second-order equation is much larger. (3) The dissipated power predicted by the second-order equation with high Mach number is smaller.
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Affiliation(s)
- Xiaoxiao Zheng
- Key Laboratory of Power Station Energy Transfer Conversion and System (Ministry of Education), School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
| | - Xiaoyu Wang
- Key Laboratory of Power Station Energy Transfer Conversion and System (Ministry of Education), School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
| | - Yuning Zhang
- Key Laboratory of Power Station Energy Transfer Conversion and System (Ministry of Education), School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China.
| | - Yuning Zhang
- College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249, China; Beijing Key Laboratory of Process Fluid Filtration and Separation, China University of Petroleum-Beijing, Beijing 102249, China
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18
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Wang X, Chen W, Zhou M, Zhang Z, Zhang L. Dynamics of double bubbles under the driving of burst ultrasound. ULTRASONICS SONOCHEMISTRY 2022; 84:105952. [PMID: 35202999 PMCID: PMC8866905 DOI: 10.1016/j.ultsonch.2022.105952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/27/2022] [Accepted: 02/09/2022] [Indexed: 06/06/2023]
Abstract
This paper investigates the pulsations and translation of bubbles in a double-bubble system driven by burst ultrasound. Results illustrate that for two identical bubbles, decreasing the frequency of burst or increasing its amplitude can enhance the pulsations and improve the translation velocities of bubbles. In a certain scope, large bubble brings about fast translation velocity, but the velocity will fall down for too large bubble, such as the bubble with ambient radius over about its resonance radius. When the ambient radii of two bubbles are different, translation of the large bubble is smaller than that of the small bubble. In addition, the effect of initial distance between bubbles is described as well. If burst serials are used, shortening the time interval between each burst and improving the acoustic amplitude of bursts are beneficial for the translations of bubbles.
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Affiliation(s)
- Xun Wang
- Kaiserslautern Intelligent Manufacturing School, Shanghai Dianji University, Shanghai 201306, China
| | - Weizhong Chen
- Key Laboratory of Modern Acoustics, Ministry of Education, Institute of Acoustics, Nanjing University, Nanjing 210093, China.
| | - Min Zhou
- School of Science, Xi'an Polytechnic University, Xi'an 710048, China
| | - Zekun Zhang
- Kaiserslautern Intelligent Manufacturing School, Shanghai Dianji University, Shanghai 201306, China
| | - Lingling Zhang
- Key Laboratory of Modern Acoustics, Ministry of Education, Institute of Acoustics, Nanjing University, Nanjing 210093, China
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19
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Laboratory evaluation to field application of ultrasound: A state-of-the-art review on the effect of ultrasonication on enhanced oil recovery mechanisms. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.03.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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20
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Deng Y, Wang W, Zhao S, Yang X, Xu W, Guo M, Xu E, Ding T, Ye X, Liu D. Ultrasound-assisted extraction of lipids as food components: Mechanism, solvent, feedstock, quality evaluation and coupled technologies – A review. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.01.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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21
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Qin D, Zou Q, Lei S, Wang W, Li Z. Nonlinear dynamics and acoustic emissions of interacting cavitation bubbles in viscoelastic tissues. ULTRASONICS SONOCHEMISTRY 2021; 78:105712. [PMID: 34391164 PMCID: PMC8363877 DOI: 10.1016/j.ultsonch.2021.105712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/26/2021] [Accepted: 08/04/2021] [Indexed: 05/14/2023]
Abstract
The cavitation-mediated bioeffects are primarily associated with the dynamic behaviors of bubbles in viscoelastic tissues, which involves complex interactions of cavitation bubbles with surrounding bubbles and tissues. The radial and translational motions, as well as the resultant acoustic emissions of two interacting cavitation bubbles in viscoelastic tissues were numerically investigated. Due to the bubble-bubble interactions, a remarkable suppression effect on the small bubble, whereas a slight enhancement effect on the large one were observed within the acoustic exposure parameters and the initial radii of the bubbles examined in this paper. Moreover, as the initial distance between bubbles increases, the strong suppression effect is reduced gradually and it could effectively enhance the nonlinear dynamics of bubbles, exactly as the bifurcation diagrams exhibit a similar mode of successive period doubling to chaos. Correspondingly, the resultant acoustic emissions present a progressive evolution of harmonics, subharmonics, ultraharmonics and broadband components in the frequency spectra. In addition, with the elasticity and/or viscosity of the surrounding medium increasing, both the nonlinear dynamics and translational motions of bubbles were reduced prominently. This study provides a comprehensive insight into the nonlinear behaviors and acoustic emissions of two interacting cavitation bubbles in viscoelastic media, it may contribute to optimizing and monitoring the cavitation-mediated biomedical applications.
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Affiliation(s)
- Dui Qin
- Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing 400065, PR China.
| | - Qingqin Zou
- Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing 400065, PR China
| | - Shuang Lei
- Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing 400065, PR China
| | - Wei Wang
- Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing 400065, PR China
| | - Zhangyong Li
- Department of Biomedical Engineering, School of Bioinformatics, Chongqing University of Posts and Telecommunications, Chongqing 400065, PR China.
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22
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Cavitation Dynamics and Inertial Cavitation Threshold of Lipid Coated Microbubbles in Viscoelastic Media with Bubble-Bubble Interactions. MICROMACHINES 2021; 12:mi12091125. [PMID: 34577768 PMCID: PMC8493799 DOI: 10.3390/mi12091125] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/14/2021] [Accepted: 09/17/2021] [Indexed: 01/08/2023]
Abstract
Encapsulated microbubbles combined with ultrasound have been widely utilized in various biomedical applications; however, the bubble dynamics in viscoelastic medium have not been completely understood. It involves complex interactions of coated microbubbles with ultrasound, nearby microbubbles and surrounding medium. Here, a comprehensive model capable of simulating the complex bubble dynamics was developed via taking the nonlinear viscoelastic behaviors of the shells, the bubble–bubble interactions and the viscoelasticity of the surrounding medium into account simultaneously. For two interacting lipid-coated bubbles with different initial radii in viscoelastic media, it exemplified that the encapsulating shell, the inter-bubble interactions and the medium viscoelasticity would noticeably suppress bubble oscillations. The inter-bubble interactions exerted a much stronger suppressing effect on the small bubble within the parameters examined in this paper, which might result from a larger radiated pressure acting on the small bubble due to the inter-bubble interactions. The lipid shells make the microbubbles exhibit two typical asymmetric dynamic behaviors (i.e., compression or expansion dominated oscillations), which are determined by the initial surface tension of the bubbles. Accordingly, the inertial cavitation threshold decreases as the initial surface tension increases, but increases as the shell elasticity and viscosity increases. Moreover, with the distance between bubbles decreasing and/or the initial radius of the large bubble increasing, the oscillations of the small bubble decrease and the inertial cavitation threshold increases gradually due to the stronger suppression effects caused by the enhanced bubble–bubble interactions. Additionally, increasing the elasticity and/or viscosity of the surrounding medium would also dampen bubble oscillations and result in a significant increase in the inertial cavitation threshold. This study may contribute to both encapsulated microbubble-associated ultrasound diagnostic and emerging therapeutic applications.
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23
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Chen Y, Chelgani SC, Bu X, Xie G. Effect of the ultrasonic standing wave frequency on the attractive mineralization for fine coal particle flotation. ULTRASONICS SONOCHEMISTRY 2021; 77:105682. [PMID: 34330084 PMCID: PMC8329543 DOI: 10.1016/j.ultsonch.2021.105682] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/09/2021] [Accepted: 07/19/2021] [Indexed: 05/11/2023]
Abstract
Froth flotation for mineral beneficiation is one of the most important separation techniques; however, it has several challenges for processing fine and ultrafine particles. Attractive mineralization between particles and bubbles by ultrasonic standing wave (USW) is a novel and high-efficiency method that could assist fine particle flotation. Frequency is an important ultrasound parameter, whose effectiveness mechanisms on the attractive mineralization did not compressively address. This study explored the effect of the USW field with various frequencies on the fine coal flotation for filling this gap. Herein, a high-speed camera and a focused beam reflectance measurement (FBRM) were used to analyze three sub-processes of the attractive mineralization, including the microbubbles' formation, the conventional flotation bubbles (CFBs)' dispersion, and the particles' movement. It was found that the maximum flotation metallurgical responses were obtained under the highest examined USW frequency (600 kHz). However, the flotation outcomes by a low USW frequency (50 kHz) were even lower than the conventional flotation tests. Observation and theoretical calculation results revealed these results were originated from the influence of frequency on the carrier bubbles' formation and the action of the secondary acoustic force during USW-assisted flotation. These outcomes demonstrated that frequency is a key factor determining the success of attractive mineralization for fine particles' flotation.
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Affiliation(s)
- Yuran Chen
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China; School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Saeed Chehreh Chelgani
- Minerals and Metallurgical Engineering, Dept. of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, SE-971 87 Luleå, Sweden
| | - Xiangning Bu
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China.
| | - Guangyuan Xie
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
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Numerical Characterization of Acoustic Cavitation Bubbles with Respect to the Bubble Size Distribution at Equilibrium. Processes (Basel) 2021. [DOI: 10.3390/pr9091546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In addition to bubble number density, bubble size distribution is an important population parameter governing the activity of acoustic cavitation bubbles. In the present paper, an iterative numerical method for equilibrium size distribution is proposed and combined to a model for bubble counting, in order to approach the number density within a population of acoustic cavitation bubbles of inhomogeneous sizing, hence the sonochemical activity of the inhomogeneous population based on discretization into homogenous groups. The composition of the inhomogeneous population is analyzed based on cavitation dynamics and shape stability at 300 kHz and 0.761 W/cm2 within the ambient radii interval ranging from 1 to 5 µm. Unstable oscillation is observed starting from a radius of 2.5 µm. Results are presented in terms of number probability, number density, and volume probability within the population of acoustic cavitation bubbles. The most probable group having an equilibrium radius of 3 µm demonstrated a probability in terms of number density of 27%. In terms of contribution to the void, the sub-population of 4 µm plays a major role with a fraction of 24%. Comparisons are also performed with the homogenous population case both in terms of number density of bubbles and sonochemical production of HO•,HO2•, and H• under an oxygen atmosphere.
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25
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Bian YR, Li WJ, Pan LH, Peng QM, You S, Sheng S, Wang J, Wu FA. Sweet-flavored peptides with biological activities from mulberry seed protein treated by multifrequency countercurrent ultrasonic technology. Food Chem 2021; 367:130647. [PMID: 34343806 DOI: 10.1016/j.foodchem.2021.130647] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 06/29/2021] [Accepted: 07/17/2021] [Indexed: 11/25/2022]
Abstract
To increase the reuse of food residues, multifrequency countercurrent ultrasonic treatment was used to enhance the extraction yield of defatted mulberry seed protein (DMSP), and sweet-flavored peptides from DMSP hydrolysates (DMSPHs) were obtained for the first time. Here, the DMSP yield was increased by 16.2% (p < 0.05) while the power density was halved compared with single-frequency ultrasonic treatment. According to Fick's second law, a molecular diffusion dynamics model was developed to be suitable for predicting the pretreatment conditions (R2 = 0.9785). After that, the sweet-flavored peptides were purified and the main amino acid sequences were identified, i.e., FEGGSIE, KDFPEAHSQAT, and GSQPAEGAK. Moreover, the antioxidant activities of DMSPHs prepared with tri-frequency treatment was higher than 60%. The DMSPHs retarded the growth of HepG2 cells in vitro, increased the necrotic quadrant (Q1-UL), and extended the S phase. Therefore, the sweet-flavored peptides prepared from DMSPHs using the multifrequency-ultrasonic treatment have significant biological activities.
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Affiliation(s)
- Yu-Rong Bian
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China
| | - Wen-Jing Li
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China
| | - Lian-Han Pan
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China
| | - Qiang-Min Peng
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China
| | - Shuai You
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China; Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agricultural and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu 212100, China
| | - Sheng Sheng
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China; Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agricultural and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu 212100, China
| | - Jun Wang
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China; Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agricultural and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu 212100, China; Attached Silkworm Medicine Factory, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu 212018, China.
| | - Fu-An Wu
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China; Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agricultural and Rural Affairs, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, Jiangsu 212100, China
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26
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Effects of simultaneous dual-frequency divergent ultrasound-assisted extraction on the structure, thermal and antioxidant properties of protein from Chlorella pyrenoidosa. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102294] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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27
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Shen Y, Zhang L, Wu Y, Chen W. The role of the bubble-bubble interaction on radial pulsations of bubbles. ULTRASONICS SONOCHEMISTRY 2021; 73:105535. [PMID: 33823488 PMCID: PMC8050038 DOI: 10.1016/j.ultsonch.2021.105535] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 03/18/2021] [Indexed: 05/04/2023]
Abstract
Using a model that with or without considering the interaction between bubbles through the radiated pressure waves, numerical simulations of cavitation bubbles have been performed in order to study the effect of the bubble-bubble interaction on radial pulsations of bubbles. Comparing the results obtained by with or without considering the bubble-bubble interaction, it is suggested that the suppression or enlargement property of expansion ratios of bubbles due to the bubble-bubble interaction largely depends on the ultrasound parameters, the ambient bubble radii, the distances between bubbles and the number of bubbles (in multi-bubble environment, the last two aspects can be expressed using the coupling strength). The frequency response curve of expansion ratio decreases and shifts to left due to the bubble-bubble interaction and the larger the coupling strength is, the more the left-shifting is.
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Affiliation(s)
- Yang Shen
- The Key Laboratory of Modern Acoustics, Ministry of Education, Institution of Acoustics, Nanjing University, Nanjing 210093, China
| | - Lingling Zhang
- The Key Laboratory of Modern Acoustics, Ministry of Education, Institution of Acoustics, Nanjing University, Nanjing 210093, China
| | - Yaorong Wu
- The Key Laboratory of Modern Acoustics, Ministry of Education, Institution of Acoustics, Nanjing University, Nanjing 210093, China
| | - Weizhong Chen
- The Key Laboratory of Modern Acoustics, Ministry of Education, Institution of Acoustics, Nanjing University, Nanjing 210093, China.
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28
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Sojahrood AJ, Haghi H, Karshafian R, Kolios MC. Nonlinear dynamics and bifurcation structure of ultrasonically excited lipid coated microbubbles. ULTRASONICS SONOCHEMISTRY 2021; 72:105405. [PMID: 33360533 PMCID: PMC7803687 DOI: 10.1016/j.ultsonch.2020.105405] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 11/08/2020] [Accepted: 11/09/2020] [Indexed: 05/04/2023]
Abstract
In many applications, microbubbles (MBs) are encapsulated by a lipid coating to increase their stability. However, the complex behavior of the lipid coating including buckling and rupture sophisticates the dynamics of the MBs and as a result the dynamics of the lipid coated MBs (LCMBs) are not well understood. Here, we investigate the nonlinear behavior of the LCMBs by analyzing their bifurcation structure as a function of acoustic pressure. We show that, the LC can enhance the generation of period 2 (P2), P3, higher order subharmonics (SH), superharmonics and chaos at very low excitation pressures (e.g. 1 kPa). For LCMBs sonicated by their SH resonance frequency and in line with experimental observations with increasing pressure, P2 oscillations exhibit three stages: generation at low acoustic pressures, disappearance and re-generation. Within non-destructive oscillation regimes and by pressure amplitude increase, LCMBs can also exhibit two saddle node (SN) bifurcations resulting in possible abrupt enhancement of the scattered pressure. The first SN resembles the pressure dependent resonance phenomenon in uncoated MBs and the second SN resembles the pressure dependent SH resonance. Depending on the initial surface tension of the LCMBs, the nonlinear behavior may also be suppressed for a wide range of excitation pressures.
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Affiliation(s)
- A J Sojahrood
- Department of Physics, Ryerson University, Toronto, Canada; Institute for Biomedical Engineering, Science and Technology (IBEST) a partnership between Ryerson University and St. Michael's Hospital, Toronto, Ontario, Canada.
| | - H Haghi
- Department of Physics, Ryerson University, Toronto, Canada; Institute for Biomedical Engineering, Science and Technology (IBEST) a partnership between Ryerson University and St. Michael's Hospital, Toronto, Ontario, Canada
| | - R Karshafian
- Department of Physics, Ryerson University, Toronto, Canada; Institute for Biomedical Engineering, Science and Technology (IBEST) a partnership between Ryerson University and St. Michael's Hospital, Toronto, Ontario, Canada
| | - M C Kolios
- Department of Physics, Ryerson University, Toronto, Canada; Institute for Biomedical Engineering, Science and Technology (IBEST) a partnership between Ryerson University and St. Michael's Hospital, Toronto, Ontario, Canada
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29
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Bao H, Zhang H, Gao L, Tang M, Zhang C, Lu J. Experimental investigations of three laser-induced synchronized bubbles. ULTRASONICS SONOCHEMISTRY 2021; 71:105375. [PMID: 33166916 PMCID: PMC7786576 DOI: 10.1016/j.ultsonch.2020.105375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/21/2020] [Accepted: 10/19/2020] [Indexed: 06/11/2023]
Abstract
Herein, we investigated experimentally the dynamics of three laser-induced, same-sized, symmetrically aligned, and synchronized bubbles. Three synchronized laser beams split from the same beam using a Diffractive Optical Element splitter were focused on water, and then we obtained three bubbles. Another nanosecond laser pulse was used to probe the bubbles to obtain shadowgraphs. The exact delay of the excited and detected light was controlled using a delay generator. The results revealed that the maximum volumes of bubbles in arrays decrease as the normalized distance falls, while the lifetimes and translation increase. It was explained by the interaction between the acoustic radiation of bubbles and the surrounding bubbles. The shrinkage of linear bubble arrays exists an anomaly. The center bubbles were stretched, to ellipsoid, stick, even fractured, by the peripheral bubbles. The closer they are, the more distinct is the above phenomenon. However, when the normalized distance was sufficiently small, instead of being stretched, the center bubbles were compressed to disk shape and thus shrank with the whole array. Finally, the dependence of the distance on the energy transfer of the bubble system is also discussed.
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Affiliation(s)
- Hengzhu Bao
- School of Science, Nanjing University of Science and Technology, China
| | - Hongchao Zhang
- School of Science, Nanjing University of Science and Technology, China
| | - Lou Gao
- School of Science, Nanjing University of Science and Technology, China
| | - Mao Tang
- School of Science, Nanjing University of Science and Technology, China
| | - Chong Zhang
- School of Science, Nanjing University of Science and Technology, China
| | - Jian Lu
- School of Science, Nanjing University of Science and Technology, China.
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30
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Soto F, Karshalev E, Zhang F, Esteban Fernandez de Avila B, Nourhani A, Wang J. Smart Materials for Microrobots. Chem Rev 2021; 122:5365-5403. [DOI: 10.1021/acs.chemrev.0c00999] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Fernando Soto
- Department of Nanoengineering, Chemical Engineering Program and Contextual Robotics Institute, University of California San Diego, La Jolla, California 92093, United States
| | - Emil Karshalev
- Department of Nanoengineering, Chemical Engineering Program and Contextual Robotics Institute, University of California San Diego, La Jolla, California 92093, United States
| | - Fangyu Zhang
- Department of Nanoengineering, Chemical Engineering Program and Contextual Robotics Institute, University of California San Diego, La Jolla, California 92093, United States
| | - Berta Esteban Fernandez de Avila
- Department of Nanoengineering, Chemical Engineering Program and Contextual Robotics Institute, University of California San Diego, La Jolla, California 92093, United States
| | - Amir Nourhani
- Department of Mechanical Engineering, Department of Mathematics, Biology, Biomimicry Research and Innovation Center, University of Akron, Akron, Ohio 44325, United States
| | - Joseph Wang
- Department of Nanoengineering, Chemical Engineering Program and Contextual Robotics Institute, University of California San Diego, La Jolla, California 92093, United States
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31
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Yu F, Luo X, He B, Xiao J, Wang W, Zhang J. Experimental investigation of flow boiling heat transfer enhancement under ultrasound fields in a minichannel heat sink. ULTRASONICS SONOCHEMISTRY 2021; 70:105342. [PMID: 32961436 PMCID: PMC7786537 DOI: 10.1016/j.ultsonch.2020.105342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 08/14/2020] [Accepted: 09/03/2020] [Indexed: 05/07/2023]
Abstract
Ultrasound is considered to be an effective active heat transfer enhancement method, which is widely used in various fields. But there is no clear understanding of flow boiling heat transfer characteristics in micro/mini-channels under ultrasonic field since the studies related are limited up to now. In this paper, a novel minichannel heat exchanger with two ultrasonic transducers inside the inlet and outlet plenum respectively is designed to experimentally investigate the impacts of ultrasound on flow boiling heat transfer enhancement in a minichannel heat sink. Flow visualization analyses reveal that ultrasound can promote rapid bubble motion, bubble detachment from heating wall surface and thereby new bubble generation, and decrease the length of confined bubble. Furthermore, the flow boiling experiments are initiated employing working fluid R141b at different ultrasonic parameters (e.g., frequency, power, angle of radiation) and heat flux under three types of ultrasound excitations: no ultrasound (NU), single inlet ultrasound (IU), inlet and outlet ultrasound (IOU). The results indicate that ultrasound has obvious augmentation effects on flow boiling heat transfer even though the intensification effects will be limited with the heat flux increases. The higher ultrasonic power, the lower ultrasonic frequency and the higher ultrasonic radiation angle, the better intensification efficiency. The maximum enhancement ratio of have in the saturated boiling section reaches 1.88 at 50 W, 23 kHz and 45° under the experimental conditions. This study will be beneficial for future applications of ultrasound on flow boiling heat transfer in micro/mini-channels.
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Affiliation(s)
- Fan Yu
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Xiaoping Luo
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China.
| | - Bolin He
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Jian Xiao
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Wen Wang
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Jinxin Zhang
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
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32
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Wang Y, Zhang Z, Li Y, Jiang H, Kumah Mintah B, Dabbour M, He R, Ma H. Lysinoalanine formation and conformational characteristics of rice dreg protein isolates by multi-frequency countercurrent S-type sonochemical action. ULTRASONICS SONOCHEMISTRY 2020; 69:105257. [PMID: 32688247 DOI: 10.1016/j.ultsonch.2020.105257] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 06/20/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
The influences of multi-frequency countercurrent S-type ultrasound (MFSU), with various frequency modes, on lysinoalanine (LAL) formation and conformational characteristics of rice dreg protein isolates (RDPI) were investigated. The ultrasonic operating mode with dual-frequency combination (20/40 kHz) indicated lower LAL content and higher protein dissolution rate of RDPI compared with that of other ultrasound operating modes. Under the dual-frequency ultrasound mode of 20/40 kHz, acoustic power density of 60 W/L, time of 20 min, and temperature of 35 °C, the relative reduction rate of LAL of RDPI reached the highest with its value of 26.95%, and the protein dissolution rate was 71.87%. The changes in chemical interactions between protein molecules indicated that hydrophobic interactions and disulfide bonds played a considerable role in the formation of LAL of RDPI, especially the reduction of g-g-g and g-g-t disulfide bond. Alterations in microstructure showed that ultrasonication loosened the protein structure and created more uniform protein fragments of RDPI. In conclusion, using MFSU in treating RDPI was an efficacious avenue for minimizing LAL content and modifying the conformational characteristics of RDPI.
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Affiliation(s)
- Yang Wang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Applied Chemistry and Biological Engineering, Weifang Engineering Vocational College, 8979 Yunmenshan South Road, Qingzhou, Shandong 262500, China
| | - Zhaoli Zhang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Applied Chemistry and Biological Engineering, Weifang Engineering Vocational College, 8979 Yunmenshan South Road, Qingzhou, Shandong 262500, China
| | - Yihe Li
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; College of Grain Engineering, Food&Drug, Jiangsu Vocational College of Finance & Economics, 8 Meicheng East Road, Huaian, Jiangsu 223001, China
| | - Hui Jiang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Benjamin Kumah Mintah
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Mokhtar Dabbour
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Department of Agricultural and Biosystems Engineering, Faculty of Agriculture, Benha University, P.O. Box 13736, Moshtohor, Qaluobia, Egypt
| | - Ronghai He
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China.
| | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
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33
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Wang Y, Zhang Z, He R, Mintah BK, Dabbour M, Qu W, Liu D, Ma H. Proteolysis efficiency and structural traits of corn gluten meal: Impact of different frequency modes of a low-power density ultrasound. Food Chem 2020; 344:128609. [PMID: 33229163 DOI: 10.1016/j.foodchem.2020.128609] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 10/04/2020] [Accepted: 11/07/2020] [Indexed: 10/23/2022]
Abstract
The influence of varying frequency modes of a low-power density ultrasound (LPDU) on the enzymolysis efficacy and structural property of corn gluten meal (CGM) was investigated. Sonication pretreatment (of CGM) with sequential and simultaneous duple-frequency modes enhanced notably the relative enzymolysis efficiency, compared to other LPDU frequency modes. With a sequential duple-frequency of 20/40 kHz showing the most significant effect, the maximum value of enzymolysis efficiency and protein dissolution rate were 15.99% and 61.69%, respectively. Changes in the surface hydrophobicity, secondary structure and microstructure revealed alterations of conformation of CGM by ultrasound-induced effect. Furthermore, the molecular weight distribution CGM hydrolysates primarily distributed in 200-500 Da following ultrasonication. Sonication efficaciously enhanced the susceptibility of CGM to alcalase proteolysis. Thus, the use of various LPDU frequency modes in pretreating target proteins (CGM) may be considered as a practical approach to improve protein-enzyme reactions (proteolysis).
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Affiliation(s)
- Yang Wang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; School of Food Science and Engineering, Yangzhou University, 196 Huayang West Road, Yangzhou, Jiangsu 225127, China
| | - Zhaoli Zhang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; School of Food Science and Engineering, Yangzhou University, 196 Huayang West Road, Yangzhou, Jiangsu 225127, China
| | - Ronghai He
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Benjamin Kumah Mintah
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Mokhtar Dabbour
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Department of Agricultural and Biosystems Engineering, Faculty of Agriculture, Benha University, P.O. Box 13736, Moshtohor, Qaluobia, Egypt
| | - Wenjuan Qu
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Dandan Liu
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China.
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34
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Hegedűs F, Klapcsik K, Lauterborn W, Parlitz U, Mettin R. GPU accelerated study of a dual-frequency driven single bubble in a 6-dimensional parameter space: The active cavitation threshold. ULTRASONICS SONOCHEMISTRY 2020; 67:105067. [PMID: 32380373 DOI: 10.1016/j.ultsonch.2020.105067] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/29/2020] [Accepted: 03/11/2020] [Indexed: 05/11/2023]
Abstract
The active cavitation threshold of a dual-frequency driven single spherical gas bubble is studied numerically. This threshold is defined as the minimum intensity required to generate a given relative expansion (Rmax-RE)/RE, where RE is the equilibrium size of the bubble and Rmax is the maximum bubble radius during its oscillation. The model employed is the Keller-Miksis equation that is a second order ordinary differential equation. The parameter space investigated is composed by the pressure amplitudes, excitation frequencies, phase shift between the two harmonic components and by the equilibrium bubble radius (bubble size). Due to the large 6-dimensional parameter space, the number of the parameter combinations investigated is approximately two billion. Therefore, the high performance of graphics processing units is exploited; our in-house code is written in C++ and CUDA C software environments. The results show that for (Rmax-RE)/RE=2, the best choice of the frequency pairs depends on the bubble size. For small bubbles, below 3μm, the best option is to use just a single frequency of a low value in the giant response region. For medium sized bubbles, between 3μm and 6μm, the optimal choice is the mixture of low frequency (giant response) and main resonance frequency. For large bubbles, above 6μm, the main resonance dominates the active cavitation threshold. Increasing the prescribed relative expansion value to (Rmax-RE)/RE=3, the optimal choice is always single frequency driving with the lowest value (20kHz here). Thus, in this case, the giant response always dominates the active cavitation threshold. The phase shift between the harmonic components of the dual-frequency driving (different frequency values) has no effect on the threshold.
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Affiliation(s)
- Ferenc Hegedűs
- Department of Hydrodynamic Systems, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Budapest, Hungary.
| | - Kálmán Klapcsik
- Department of Hydrodynamic Systems, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Budapest, Hungary.
| | - Werner Lauterborn
- Drittes Physikalisches Institut, Georg-August-Universität Göttingen, Göttingen, Germany.
| | - Ulrich Parlitz
- Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organization and Institut für Dynamik komplexer Systeme, Georg-August-Universität Göttingen, Göttingen, Germany.
| | - Robert Mettin
- Drittes Physikalisches Institut, Georg-August-Universität Göttingen, Göttingen, Germany.
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35
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Ozdas MS, Shah AS, Johnson PM, Patel N, Marks M, Yasar TB, Stalder U, Bigler L, von der Behrens W, Sirsi SR, Yanik MF. Non-invasive molecularly-specific millimeter-resolution manipulation of brain circuits by ultrasound-mediated aggregation and uncaging of drug carriers. Nat Commun 2020; 11:4929. [PMID: 33004789 PMCID: PMC7529901 DOI: 10.1038/s41467-020-18059-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 07/31/2020] [Indexed: 12/13/2022] Open
Abstract
Non-invasive, molecularly-specific, focal modulation of brain circuits with low off-target effects can lead to breakthroughs in treatments of brain disorders. We systemically inject engineered ultrasound-controllable drug carriers and subsequently apply a novel two-component Aggregation and Uncaging Focused Ultrasound Sequence (AU-FUS) at the desired targets inside the brain. The first sequence aggregates drug carriers with millimeter-precision by orders of magnitude. The second sequence uncages the carrier's cargo locally to achieve high target specificity without compromising the blood-brain barrier (BBB). Upon release from the carriers, drugs locally cross the intact BBB. We show circuit-specific manipulation of sensory signaling in motor cortex in rats by locally concentrating and releasing a GABAA receptor agonist from ultrasound-controlled carriers. Our approach uses orders of magnitude (1300x) less drug than is otherwise required by systemic injection and requires very low ultrasound pressures (20-fold below FDA safety limits for diagnostic imaging). We show that the BBB remains intact using passive cavitation detection (PCD), MRI-contrast agents and, importantly, also by sensitive fluorescent dye extravasation and immunohistochemistry.
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Affiliation(s)
- Mehmet S Ozdas
- Institute of Neuroinformatics, D-ITET, ETH Zurich and UZH, Zurich, Switzerland.,Neuroscience Center, Zurich, Switzerland
| | - Aagam S Shah
- Institute of Neuroinformatics, D-ITET, ETH Zurich and UZH, Zurich, Switzerland. .,Neuroscience Center, Zurich, Switzerland.
| | - Paul M Johnson
- Institute of Neuroinformatics, D-ITET, ETH Zurich and UZH, Zurich, Switzerland.,Neuroscience Center, Zurich, Switzerland
| | - Nisheet Patel
- Institute of Neuroinformatics, D-ITET, ETH Zurich and UZH, Zurich, Switzerland
| | - Markus Marks
- Institute of Neuroinformatics, D-ITET, ETH Zurich and UZH, Zurich, Switzerland.,Neuroscience Center, Zurich, Switzerland
| | - Tansel Baran Yasar
- Institute of Neuroinformatics, D-ITET, ETH Zurich and UZH, Zurich, Switzerland.,Neuroscience Center, Zurich, Switzerland
| | - Urs Stalder
- Department of Chemistry, UZH, Zurich, Switzerland
| | | | - Wolfger von der Behrens
- Institute of Neuroinformatics, D-ITET, ETH Zurich and UZH, Zurich, Switzerland.,Neuroscience Center, Zurich, Switzerland
| | - Shashank R Sirsi
- Institute of Neuroinformatics, D-ITET, ETH Zurich and UZH, Zurich, Switzerland.,Department of Bioengineering, UT at Dallas, Richardson, USA
| | - Mehmet Fatih Yanik
- Institute of Neuroinformatics, D-ITET, ETH Zurich and UZH, Zurich, Switzerland. .,Neuroscience Center, Zurich, Switzerland.
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36
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Zhang Z, Wang Y, Jiang H, Dai C, Xing Z, Kumah Mintah B, Dabbour M, He R, Ma H. Effect of dual-frequency ultrasound on the formation of lysinoalanine and structural characterization of rice dreg protein isolates. ULTRASONICS SONOCHEMISTRY 2020; 67:105124. [PMID: 32298973 DOI: 10.1016/j.ultsonch.2020.105124] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 03/26/2020] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
The effect of dual-frequency ultrasound treatment with different working modes on the lysinoalanine (LAL) formation and structural characterization of rice dreg protein isolates (RDPI) was studied during alkaline exaction processing. Ultrasonic notably decreased the LAL amount of RDPI and enhanced the protein dissolution rate. The LAL content of RDPI, especially sequential dual frequency 20/40 kHz, decreased by 12.02% (P < 0.05), compared to non-sonicated samples. Herein, the protein dissolution rate was higher. The changes in sulfhydryl groups was positively correlated with the LAL formation. The amino acids (AA) such as threonine (Thr), lysine (Lys), and arginine (Arg) were reduced, resulting in a decrease in LAL content following sonication. Besides, ultrasonication altered protein secondary structure by reducing random coil and β-sheet contents, while α-helix and β-turn contents increased. Alterations in the surface hydrophobicity, particle size, particle size distribution, and microstructure indicated more irregular fragment with microparticles of RDPI by sonochemical treatment. Thus, ultrasound treatment may be a new and efficacious process for controlling the LAL generation in prepared-protein food(s) during alkali extraction.
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Affiliation(s)
- Zhaoli Zhang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Applied Chemistry and Biological Engineering, Weifang Engineering Vocational College, 8979 Yunmenshan South Road, Qingzhou, Shandong 262500, China
| | - Yang Wang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Applied Chemistry and Biological Engineering, Weifang Engineering Vocational College, 8979 Yunmenshan South Road, Qingzhou, Shandong 262500, China
| | - Hui Jiang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Chunhua Dai
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Zheng Xing
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Benjamin Kumah Mintah
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
| | - Mokhtar Dabbour
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Department of Agricultural and Biosystems Engineering, Faculty of Agriculture, Benha University, P.O. Box 13736, Moshtohor, Qaluobia, Egypt
| | - Ronghai He
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China.
| | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China; Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, China
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37
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Dabbour M, Alenyorege EA, Mintah B, He R, Jiang H, Ma H. Proteolysis kinetics and structural characterization of ultrasonic pretreated sunflower protein. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.04.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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38
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Hegedűs F, Krähling P, Aron M, Lauterborn W, Mettin R, Parlitz U. Feedforward attractor targeting for non-linear oscillators using a dual-frequency driving technique. CHAOS (WOODBURY, N.Y.) 2020; 30:073123. [PMID: 32752633 DOI: 10.1063/5.0005424] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 06/15/2020] [Indexed: 06/11/2023]
Abstract
A feedforward control technique is presented to steer a harmonically driven, non-linear system between attractors in the frequency-amplitude parameter plane of the excitation. The basis of the technique is the temporary addition of a second harmonic component to the driving. To illustrate this approach, it is applied to the Keller-Miksis equation describing the radial dynamics of a single spherical gas bubble placed in an infinite domain of liquid. This model is a second-order, non-linear ordinary differential equation, a non-linear oscillator. With a proper selection of the frequency ratio of the temporary dual-frequency driving and with the appropriate tuning of the excitation amplitudes, the trajectory of the system can be smoothly transformed between specific attractors; for instance, between period-3 and period-5 orbits. The transformation possibilities are discussed and summarized for attractors originating from the subharmonic resonances and the equilibrium state (absence of external driving) of the system.
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Affiliation(s)
- F Hegedűs
- Department of Hydrodynamic Systems, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rakpart 3, H-1111 Budapest, Hungary
| | - P Krähling
- Department of Hydrodynamic Systems, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rakpart 3, H-1111 Budapest, Hungary
| | - M Aron
- Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, D-37077 Göttingen, Germany and Institut für Dynamik komplexer Systeme, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany
| | - W Lauterborn
- Drittes Physikalisches Institut, Georg-August-Universität Göttingen, Friedrich-Hund Platz 1, D-37077 Göttingen, Germany
| | - R Mettin
- Drittes Physikalisches Institut, Georg-August-Universität Göttingen, Friedrich-Hund Platz 1, D-37077 Göttingen, Germany
| | - U Parlitz
- Research Group Biomedical Physics, Max Planck Institute for Dynamics and Self-Organization, Am Fassberg 17, D-37077 Göttingen, Germany and Institut für Dynamik komplexer Systeme, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, D-37077 Göttingen, Germany
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39
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Chen Y, Ni C, Xie G, Liu Q. Toward efficient interactions of bubbles and coal particles induced by stable cavitation bubbles under 600 kHz ultrasonic standing waves. ULTRASONICS SONOCHEMISTRY 2020; 64:105003. [PMID: 32062535 DOI: 10.1016/j.ultsonch.2020.105003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 02/03/2020] [Accepted: 02/04/2020] [Indexed: 05/25/2023]
Abstract
The interactions of bubbles and coal particles in 600 kHz ultrasonic standing waves (USW) field has been investigated. A high-speed camera was employed to record the phenomena occurred under the USW treatment. The formation and behaviors of cavitation bubbles were analyzed. Under the driving of these cavitation bubbles, whose size is from several microns to dozens of microns, coal particles were aggregated and then attracted by large bubbles due to the acoustic radiation forces. The results of USW-assisted flotation show a significant improvement in recoveries at 600 kHz, which indicates that the interactions of bubbles and particles in the USW field are more efficient than that in the conventional gravitational field. Furthermore, the sound pressure distribution of the USW was measured and predicted by a hydrophone. The analysis of gravity and buoyancy, primary and secondary Bjerknes forces shows that bubble-laden particles can be attracted by the rising bubbles under large acoustic forces. This study highlights the potential for USW technology to achieve efficient bubble-particle interactions in flotation.
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Affiliation(s)
- Yuran Chen
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China; Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Chao Ni
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China; Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Guangyuan Xie
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Qingxia Liu
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada.
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40
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Huang X, Hu H, Li S, Zhang AM. Nonlinear dynamics of a cavitation bubble pair near a rigid boundary in a standing ultrasonic wave field. ULTRASONICS SONOCHEMISTRY 2020; 64:104969. [PMID: 31999989 DOI: 10.1016/j.ultsonch.2020.104969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 12/27/2019] [Accepted: 01/09/2020] [Indexed: 06/10/2023]
Abstract
The dynamics of a micrometer-sized bubble pair in water near a rigid boundary under standing ultrasonic wave excitation is investigated in this study. The viscous effect in the boundary layer at the air-water interface is considered following the viscous correction model. The evolution of the bubble surface at the collapsing stage of the bubble pair is presented for different parameter sets. The field pressure near the rigid boundary, which is induced by the oscillating bubble pair, and the high-speed water jet at the collapse stage, form the main focus of the analysis. This reveals that a horizontal configuration of the bubble pair retards the strength of the bubble jet towards the boundary, whilst a vertical configuration, especially with differently-sized bubbles, can enhance the bubble collapse. This study may help to understand the interaction of multiple bubbles in an acoustic field and its application to surface cleaning.
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Affiliation(s)
- Xiao Huang
- School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, PR China
| | - Haibao Hu
- School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, PR China.
| | - Shuai Li
- College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, PR China
| | - A-Man Zhang
- College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, PR China
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41
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Chen H, Chen Z, Li Y. Modulation of the secondary Bjerknes force in multi-bubble systems. ULTRASONICS SONOCHEMISTRY 2020; 61:104814. [PMID: 31675659 DOI: 10.1016/j.ultsonch.2019.104814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/28/2019] [Accepted: 09/29/2019] [Indexed: 06/10/2023]
Abstract
The behaviours of insonated bubble clusters are regulated by the secondary Bjerknes force between bubble pairs. While the force has been investigated extensively for two-bubble systems, the modulation of the force by nearby bubbles remains unclear. This problem is investigated in this paper by theoretical analyses and numerical simulations of a three bubble system. For weak oscillations, the third bubble is found to have strong effects when its radius is close to the resonant radius. The equilibrium distance between the bubble pair is reduced when the radius of the third bubble is smaller than the resonant threshold, and increased when it is larger. For strong oscillations of bubbles with radii of a few microns, the third bubble reduces the magnitude of the force, hence increasing the equilibrium distance. The modulation effects depend strongly on the relative sizes of the bubbles. Stronger effects can be produced when the third bubble is placed closer to the smaller bubble in the bubble pair. The findings highlight the need for a more accurate parametrization of the secondary Bjerknes force in the simulation and manipulation of bubble clusters.
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Affiliation(s)
- Haiyan Chen
- School of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Ziliang Chen
- School of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Yi Li
- School of Mathematics and Statistics, University of Sheffield, Sheffield S3 7RH, UK.
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42
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Ye L, Zhu X, Liu Y. Numerical study on dual-frequency ultrasonic enhancing cavitation effect based on bubble dynamic evolution. ULTRASONICS SONOCHEMISTRY 2019; 59:104744. [PMID: 31473426 DOI: 10.1016/j.ultsonch.2019.104744] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 07/24/2019] [Accepted: 08/22/2019] [Indexed: 06/10/2023]
Abstract
Ultrasonic cavitation is a physical dynamic phenomenon of bubbles inflation, compression, and collapse in liquid. A dual-frequency ultrasonic cavitation dynamics model is established in this paper to investigate dynamic evolution of bubble under single and dual frequency ultrasonic modes. The variation of bubble radius, pressure, energy, temperature, and number of water vapor molecules inside the bubble in single and dual frequency ultrasonic modes are analyzed, respectively. The results show the oscillation of cavitation bubbles is more unstable and easier to collapse in dual-frequency ultrasound field than those in single-frequency ultrasound field. With the increase of the ultrasonic frequency, cavitation effect is weakened due to the shortage of oscillation period. Under the same ultrasonic power, the maximums of bubble radius, pressure, and water vapor molecules number inside the bubble in the dual-frequency mode are larger than those in the single-frequency mode. Under the ultrasonic excited by 50 kHz + 70 kHz, the maximum bubble radius and pressure can reach 36.061 μm and 2285.9 MPa, respectively, which are much larger than 18.183 μm, 730.61 MPa at 50 kHz and 14.576 μm, 332.25 MPa at 70 kHz. The calculation results of three different frequency combinations (30 kHz + 50 kHz, 40 kHz + 60 kHz and 50 kHz + 70 kHz) indicate dual-frequency ultrasound can significantly enhance the cavitation effect.
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Affiliation(s)
- Linzheng Ye
- Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China.
| | - Xijing Zhu
- Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Yao Liu
- Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
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43
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Lv L, Zhang Y, Zhang Y, Zhang Y. Experimental investigations of the particle motions induced by a laser-generated cavitation bubble. ULTRASONICS SONOCHEMISTRY 2019; 56:63-76. [PMID: 31101290 DOI: 10.1016/j.ultsonch.2019.03.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 02/01/2019] [Accepted: 03/18/2019] [Indexed: 06/09/2023]
Abstract
The interactions between a laser-generated cavitation bubble and a spherical particle are investigated experimentally with the aid of high-speed camera. Both the cavitation bubble dynamics and its induced particle moving dynamics are clearly recorded and analyzed qualitatively and quantitatively. Influences of two essential parameters (including the bubble-particle distance and the particle/bubble radius ratio) on the phenomenon are given and discussed. Furthermore, the underlying physical mechanisms are discussed based on the calculations of the radiation pressure and the generations of the micro-jet. Our results reveal that the distance between the cavitation bubble and the particle shows significant influences on the phenomenon. For different radius ratios, the maximum particle displacement varies especially for the small stand-off distance.
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Affiliation(s)
- Liang Lv
- College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249, China; Beijing Key Laboratory of Process Fluid Filtration and Separation, China University of Petroleum-Beijing, Beijing 102249, China
| | - Yongxue Zhang
- College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249, China; Beijing Key Laboratory of Process Fluid Filtration and Separation, China University of Petroleum-Beijing, Beijing 102249, China
| | - Yuning Zhang
- College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249, China; Beijing Key Laboratory of Process Fluid Filtration and Separation, China University of Petroleum-Beijing, Beijing 102249, China.
| | - Yuning Zhang
- Key Laboratory of Condition Monitoring and Control for Power Plant Equipment (Ministry of Education), School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China.
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44
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Mat-Shayuti MS, Tuan Ya TMYS, Abdullah MZ, Megat Khamaruddin PNF, Othman NH. Progress in ultrasonic oil-contaminated sand cleaning: a fundamental review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:26419-26438. [PMID: 31327143 DOI: 10.1007/s11356-019-05954-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 07/11/2019] [Indexed: 06/10/2023]
Abstract
Steady efforts in using ultrasonic energy to treat oil-contaminated sand started in the early 2000s until today, although pilot studies on the area can be traced to even earlier dates. Owing to the unique characteristics of the acoustic means, the separation of oil from sand has been showing good results in laboratories. This review provides the compilation of researches and insights into the mechanism of separation thus far. Related topics in the areas of oil-contaminated sand characterizations, fundamental ultrasonic cleaning, and cavitation effects are also addressed. Nevertheless, many of the documented works are only at laboratory or pilot-scale level, and the comprehensive interaction between ultrasonic parameters towards cleaning efficiencies may not have been fully unveiled. Gaps and opportunities are also presented at the end of this article.
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Affiliation(s)
- Muhammad Shafiq Mat-Shayuti
- Mechanical Engineering Department, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak, Malaysia.
- Faculty of Chemical Engineering, Universiti Teknologi MARA, 40450, Shah Alam, Selangor, Malaysia.
| | | | - Mohamad Zaki Abdullah
- Mechanical Engineering Department, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak, Malaysia
| | | | - Nur Hidayati Othman
- Faculty of Chemical Engineering, Universiti Teknologi MARA, 40450, Shah Alam, Selangor, Malaysia
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45
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Hall RL, Juan-Sing ZD, Hoyt K, Sirsi SR. Formulation and Characterization of Chemically Cross-linked Microbubble Clusters. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10977-10986. [PMID: 31310715 PMCID: PMC7061884 DOI: 10.1021/acs.langmuir.9b00475] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The purpose of this study is to introduce a new concept of chemically cross-linked microbubble clusters (CCMCs), which are individual microbubble ultrasound contrast agents (UCAs) physically tethered together. We demonstrate a facile means of their production, characterize their size and stability, and describe how they can potentially be used in biomedical applications. By tethering UCAs together into CCMCs, we propose that novel methods of ultrasound mediated imaging and therapy can be developed through unique interbubble interactions in an ultrasound field. One of the major challenges in generating CCMCs is controlling aggregate sizes and maintaining stability against Ostwald ripening and coalescence. In this study, we demonstrate that chemically cross-linked microbubble clusters can produce small (<10 μm) quasi-stable complexes that slowly fuse into bubbles with individual gas cores. Furthermore, we demonstrate that this process can be driven with low-intensity ultrasound pulses, enabling a rapid fusion of clusters which could potentially be used to develop novel ultrasound contrast imaging and drug delivery strategies in future studies. The development of novel microbubble clusters presents a simple yet robust process for generating novel UCAs with a design that could allow for more versatility in contrast-enhanced ultrasound (CEUS), molecular imaging, and drug delivery applications. Additionally, microbubble clustering is a unique way to control size, shell, and gas compositions that can be used to study bubble ripening and coalescence in a highly controlled environment or study the behavior of mixed-microbubble populations.
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Affiliation(s)
- Ronald L. Hall
- University of Texas at Dallas, Richardson, Texas, 75080, United States
| | | | - Kenneth Hoyt
- University of Texas at Dallas, Richardson, Texas, 75080, United States
- University of Texas Southwestern, Dallas, Texas, 75390, United States
| | - Shashank R. Sirsi
- University of Texas at Dallas, Richardson, Texas, 75080, United States
- University of Texas Southwestern, Dallas, Texas, 75390, United States
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46
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Mustapha AT, Zhou C, Sun Y, Wahia H, Sarpong F, Owusu‐Ansah P, Osae R, Otu P, Ma H. Simultaneous multifrequency: A possible alternative to improve the efficacy of ultrasound treatment on cherry tomato during storage. J FOOD PROCESS PRES 2019. [DOI: 10.1111/jfpp.14083] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Cunshan Zhou
- School of Food and Biological Engineering Jiangsu University Zhenjiang People's Republic of China
- School of Biological and Food Engineering Chuzhou University Chuzhou People's Republic of China
| | - Yanhui Sun
- School of Biological and Food Engineering Chuzhou University Chuzhou People's Republic of China
| | - Hafida Wahia
- School of Food and Biological Engineering Jiangsu University Zhenjiang People's Republic of China
| | - Frederick Sarpong
- School of Food and Biological Engineering Jiangsu University Zhenjiang People's Republic of China
| | - Patrick Owusu‐Ansah
- School of Food and Biological Engineering Jiangsu University Zhenjiang People's Republic of China
| | - Richard Osae
- School of Food and Biological Engineering Jiangsu University Zhenjiang People's Republic of China
| | - Phyllis Otu
- School of Food and Biological Engineering Jiangsu University Zhenjiang People's Republic of China
| | - Haile Ma
- School of Food and Biological Engineering Jiangsu University Zhenjiang People's Republic of China
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47
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Abstract
In the present paper, an analytical solution of rectified diffusion of processes of gas bubbles in molten metal is derived for the purpose of predicting the diffusion behaviors of gas bubbles during ultrasonic degassing. In the present model, a theoretical threshold (in terms of the amplitude of the applied ultrasonic field) is determined for the evaluation of the ultrasonic degassing effects. The diffusion of hydrogen bubbles in molten aluminum is predicted, so as to provide examples to illustrate the important findings of the present work.
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48
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Chen H, Lai Z, Chen Z, Li Y. The secondary Bjerknes force between two oscillating bubbles in Kelvin-Voigt-type viscoelastic fluids driven by harmonic ultrasonic pressure. ULTRASONICS SONOCHEMISTRY 2019; 52:344-352. [PMID: 30563795 DOI: 10.1016/j.ultsonch.2018.12.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 12/04/2018] [Accepted: 12/04/2018] [Indexed: 06/09/2023]
Abstract
The interaction between two small bubbles experiencing transient cavitation in a nonlinear Kelvin-Voigt fluid is investigated. The time-delay effect in the interaction is incorporated in the coupled Keller-Miksis model. The refined model predicts that bubbles with radii smaller than 2μm will be repelled by large bubbles, in contrast to predictions from previous models. The matching pressure needed to obtain same level of transient cavitation in different Kelvin-Voigt fluids is shown to depend mainly on the shear modulus and is insensitive to other parameters, which makes it a useful parameter to correlate the results. When the radii of the bubbles fall between 4μm and 6μm, the secondary Bjerknes force obtained with matching pressures shows only weak dependence on the shear modulus. For the pressure amplitudes investigated, equilibrium distances can be found between two bubbles when the equilibrium radius of one of the bubbles is in a narrow range around 2 μm. The equilibrium distance decreases when the shear modulus is increased. A simple relation between the two quantities is established.
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Affiliation(s)
- Haiyan Chen
- School of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Zhenmin Lai
- School of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Ziliang Chen
- School of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Yi Li
- School of Mathematics and Statistics, University of Sheffield, Sheffield S3 7RH, UK.
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49
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Effect of ultrasound pretreatment with mono-frequency and simultaneous dual frequency on the mechanical properties and microstructure of whey protein emulsion gels. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.11.007] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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50
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Wen C, Zhang J, Zhang H, Dzah CS, Zandile M, Duan Y, Ma H, Luo X. Advances in ultrasound assisted extraction of bioactive compounds from cash crops - A review. ULTRASONICS SONOCHEMISTRY 2018; 48:538-549. [PMID: 30080583 DOI: 10.1016/j.ultsonch.2018.07.018] [Citation(s) in RCA: 259] [Impact Index Per Article: 43.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 06/28/2018] [Accepted: 07/17/2018] [Indexed: 05/21/2023]
Abstract
Bioactive compounds in cash crops can be obtained from horticulture, oil and medicinal crops sources. Conventional extraction methods have disadvantages such as low extraction rate, large solvent consumption, high energy consumption and long production cycle. Ultrasonic-assisted extraction is a novel, green and rapid developing technology, which is suitable for up scaling and improving the extraction efficiency of bioactive compounds. Ultrasound mainly acts by producing cavitation bubbles in biological matrix. It has inclusively been reported for achieving high yields and extraction rates of bioactive compounds. Moreover, it can bring remarkable economic and environmental benefits, and has great potential for development and application. This review summarizes the mechanisms, effects of ultrasonic-assisted extraction, ultrasonic devices, and their application in bioactive compounds extraction from cash crops. The future perspective of ultrasound technology is also discussed, which will help to better understand the complex mechanism of ultrasonic-assisted extraction and further guide its application in cash crops.
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Affiliation(s)
- Chaoting Wen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013 China
| | - Jixian Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013 China
| | - Haihui Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013 China
| | - Courage Sedem Dzah
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013 China
| | - Manyakara Zandile
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013 China
| | - Yuqing Duan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013 China.
| | - Haile Ma
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013 China.
| | - Xiaoping Luo
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013 China
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