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Chuai S, Zhu X, Ye L, Liu Y, Wang Z, Li F. Study on the mechanism of ultrasonic cavitation effect on the surface properties enhancement of TC17 titanium alloy. ULTRASONICS SONOCHEMISTRY 2024; 108:106957. [PMID: 38901304 PMCID: PMC11239707 DOI: 10.1016/j.ultsonch.2024.106957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/04/2024] [Accepted: 06/14/2024] [Indexed: 06/22/2024]
Abstract
In industrial production and scientific research, ultrasonic cavitation technology, with its outstanding physical and chemical processing capabilities, has been widely applied in fields such as material surface modification, chemical synthesis, and biotechnology, becoming a focal point of research and application. This article delves into the effects of different ultrasonic frequencies on cavitation outcomes through the combined use of numerical simulation, fluorescence analysis, and high-speed photography, specifically analyzing the quantitative improvement in the mechanical properties of TC17 titanium alloy under ultrasonic cavitation at frequencies of 20 kHz, 30 kHz, and 40 kHz. The study found that at an ultrasonic frequency of 20 kHz, the maximum expansion radius of cavitation bubbles can reach 51.4 μm, 8.6 times their initial radius. Correspondingly, fluorescence intensity and peak area also increased to 402.8 and 28104, significantly above the baseline level. Moreover, after modification by ultrasonic cavitation, the original machining marks on the surface of TC17 titanium alloy became fainter, with the emergence of new, uniformly distributed microfeatures. The microhardness of the material increased from 373.7 Hv to 383.84 Hv, 396.62 Hv, and 414.06 Hv, with a maximum improvement of 10.8 %. At the same time, surface height difference and roughness significantly decreased (to 3.168 μm and 0.61 μm respectively), with reductions reaching 45.1 % and 42.4 %, indicating a significant improvement in material surface quality. Notably, there is a negative correlation between the improvement of mechanical properties and ultrasonic frequency, suggesting that the improvement effects decrease as ultrasonic frequency increases. This research not only reveals the quantitative relationship between ultrasonic cavitation frequency and material surface modification effects but also provides a solid scientific basis and practical guidance for the application of ultrasonic cavitation technology in surface engineering, signifying the technology's potential for broad application in the future.
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Affiliation(s)
- Shida Chuai
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Xijing Zhu
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China.
| | - Linzheng Ye
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Yao Liu
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Zexiao Wang
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
| | - Fei Li
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China; Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China
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2
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Liow MY, Chan ES, Ng WZ, Song CP. Enhancing efficiency of ultrasound-assisted biodiesel production catalyzed by Eversa® Transform 2.0 at low lipase concentration: Enzyme characterization and process optimization. Int J Biol Macromol 2024; 271:132538. [PMID: 38782325 DOI: 10.1016/j.ijbiomac.2024.132538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/29/2024] [Accepted: 05/19/2024] [Indexed: 05/25/2024]
Abstract
This study focused on the ultrasound-assisted transesterification of simulated low-quality feedstocks using a low-cost liquid lipase Eversa® Transform 2.0 (ET2). Enzyme characterization was also performed to investigate the effect of ultrasound parameters on enzyme structure. The optimal ultrasound parameters, 40 % amplitude, and 5 % duty cycle effectively enhanced the reaction rate compared to the conventional stirring method while retaining 95 % of the enzyme activity. Analysis of circular dichroism (CD) spectra revealed the preservation of the secondary structure of ET2 under the optimal ultrasound intensities, while fluorescence spectra indicated a slight change in its tertiary structure. The implementation of a two-stage methanol dosing strategy in the ultrasound-assisted reaction effectively mitigated lipase inhibition, yielding a remarkable fatty acid methyl ester (FAME) content of 92.2 % achieved within a 12-h reaction time. Notable, this high FAME content was achieved with only a 4:1 methanol-to-oil molar ratio and a 0.5 wt% enzyme concentration. Under these optimized conditions, the ultrasound-assisted reaction also demonstrated a 15 % improvement in the final FAME content compared to the conventional stirring method. These promising results hold significant potential for advancing the field of biodiesel production via ultrasound technology, contributing substantively to sustainable energy sources.
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Affiliation(s)
- Min Ying Liow
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia
| | - Eng-Seng Chan
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia.
| | - Wei Zhe Ng
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia
| | - Cher Pin Song
- Department of Chemical Engineering, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia.
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3
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Zhu X, Das RS, Bhavya ML, Garcia-Vaquero M, Tiwari BK. Acoustic cavitation for agri-food applications: Mechanism of action, design of new systems, challenges and strategies for scale-up. ULTRASONICS SONOCHEMISTRY 2024; 105:106850. [PMID: 38520893 PMCID: PMC10979275 DOI: 10.1016/j.ultsonch.2024.106850] [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: 11/09/2023] [Revised: 02/16/2024] [Accepted: 03/14/2024] [Indexed: 03/25/2024]
Abstract
Acoustic cavitation, an intriguing phenomenon resulting from the interaction of sound waves with a liquid medium, has emerged as a promising avenue in agri-food processing, offering opportunities to enhance established processes improving primary production of ingredients and further food processing. This comprehensive review provides an in-depth analysis of the mechanisms, design considerations, challenges and scale-up strategies associated with acoustic cavitation for agri-food applications. The paper starts by elucidating the fundamental principles of acoustic cavitation and its measurement, delving then into the diverse effects of different parameters associated with, the acoustic wave, mechanical design and operation of the ultrasonic system, along with those related to the food matrix. The technological advancements achieved in the design and set-up of ultrasonic reactors addressing limitations during scale up are also discussed. The design, engineering and mathematical modelling of ultrasonic equipment tailored for agri-food applications are explored, along with strategies to maximize cavitation intensity and efficiency in the application of brining, freezing, drying, emulsification, filtration and extraction. Advanced US equipment, such as multi-transducers (tubular resonator, FLOW:WAVE®) and larger processing surface areas through innovative designing (Barbell horn, CascatrodesTM), are one of the most promising strategies to ensure consistency of US operations at industrial scale. This review paper aims to provide valuable insights into harnessing acoustic cavitation's potential for up-scaling applications in food processing via critical examination of current research and advancements, while identifying future directions and opportunities for further research and innovation.
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Affiliation(s)
- Xianglu Zhu
- State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China; Department of Food Chemistry and Technology, Teagasc Food Research Centre, Ashtown D15 DY05, Dublin, Ireland
| | - Rahel Suchintita Das
- Department of Food Chemistry and Technology, Teagasc Food Research Centre, Ashtown D15 DY05, Dublin, Ireland; School of Agriculture and Food Science, University College Dublin, Belfield D04 V1W8, Dublin, Ireland
| | - Mysore Lokesh Bhavya
- Department of Food Chemistry and Technology, Teagasc Food Research Centre, Ashtown D15 DY05, Dublin, Ireland
| | - Marco Garcia-Vaquero
- School of Agriculture and Food Science, University College Dublin, Belfield D04 V1W8, Dublin, Ireland.
| | - Brijesh K Tiwari
- Department of Food Chemistry and Technology, Teagasc Food Research Centre, Ashtown D15 DY05, Dublin, Ireland.
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4
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Wu Y, Gai J, Zhao Y, Liu Y, Liu Y. Acoustofluidic Actuation of Living Cells. MICROMACHINES 2024; 15:466. [PMID: 38675277 PMCID: PMC11052308 DOI: 10.3390/mi15040466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/22/2024] [Accepted: 03/26/2024] [Indexed: 04/28/2024]
Abstract
Acoutofluidics is an increasingly developing and maturing technical discipline. With the advantages of being label-free, non-contact, bio-friendly, high-resolution, and remote-controllable, it is very suitable for the operation of living cells. After decades of fundamental laboratory research, its technical principles have become increasingly clear, and its manufacturing technology has gradually become popularized. Presently, various imaginative applications continue to emerge and are constantly being improved. Here, we introduce the development of acoustofluidic actuation technology from the perspective of related manipulation applications on living cells. Among them, we focus on the main development directions such as acoustofluidic sorting, acoustofluidic tissue engineering, acoustofluidic microscopy, and acoustofluidic biophysical therapy. This review aims to provide a concise summary of the current state of research and bridge past developments with future directions, offering researchers a comprehensive overview and sparking innovation in the field.
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Affiliation(s)
- Yue Wu
- Department of Bioengineering, Lehigh University, Bethlehem, PA 18015, USA;
| | - Junyang Gai
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC 3800, Australia;
| | - Yuwen Zhao
- Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, PA 18015, USA;
| | - Yi Liu
- School of Engineering, Dali University, Dali 671000, China
| | - Yaling Liu
- Department of Bioengineering, Lehigh University, Bethlehem, PA 18015, USA;
- Department of Mechanical Engineering and Mechanics, Lehigh University, Bethlehem, PA 18015, USA;
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5
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Fung KLB, Colson C, Bryan J, Saayujya C, Mokkarala-Lopez J, Hartley A, Yousuf K, Kuo R, Lu Y, Fellows BD, Chandrasekharan P, Conolly SM. First Superferromagnetic Remanence Characterization and Scan Optimization for Super-Resolution Magnetic Particle Imaging. NANO LETTERS 2023; 23:1717-1725. [PMID: 36821385 PMCID: PMC10790312 DOI: 10.1021/acs.nanolett.2c04404] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Magnetic particle imaging (MPI) is a sensitive, high-contrast tracer modality that images superparamagnetic iron oxide nanoparticles, enabling radiation-free theranostic imaging. MPI resolution is currently limited by scanner and particle constraints. Recent tracers have experimentally shown 10× resolution and signal improvements with dramatically sharper M-H curves. Experiments show a dependence on interparticle interactions, conforming to literature definitions of superferromagnetism. We thus call our tracers superferromagnetic iron oxide nanoparticles (SFMIOs). While SFMIOs provide excellent signal and resolution, they exhibit hysteresis with non-negligible remanence and coercivity. We provide the first quantitative measurements of SFMIO remanence decay and reformation using a novel multiecho pulse sequence. We characterize MPI scanning with remanence decay and coercivity and describe an SNR-optimized pulse sequence for SFMIOs under human electromagnetic safety limitations. The resolution from SFMIOs could enable clinical MPI with 10× reduced scanner selection fields, reducing hardware costs by up to 100×.
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Affiliation(s)
- K L Barry Fung
- UC Berkeley-UCSF Graduate Group in Bioengineering, University of California Berkeley and University of California San Francisco, https://bioegrad.berkeley.edu/
| | - Caylin Colson
- UC Berkeley-UCSF Graduate Group in Bioengineering, University of California Berkeley and University of California San Francisco, https://bioegrad.berkeley.edu/
| | - Jacob Bryan
- Department of Bioengineering, University of California Berkeley, Berkeley, California 94720, United States
| | - Chinmoy Saayujya
- Department of Electrical Engineering and Computer Sciences, University of California Berkeley, Berkeley, California 94720, United States
| | - Javier Mokkarala-Lopez
- Department of Bioengineering, University of California Berkeley, Berkeley, California 94720, United States
| | - Allison Hartley
- Department of Bioengineering, University of California Berkeley, Berkeley, California 94720, United States
| | - Khadija Yousuf
- Department of Bioengineering, University of California Berkeley, Berkeley, California 94720, United States
| | - Renesmee Kuo
- Department of Bioengineering, University of California Berkeley, Berkeley, California 94720, United States
| | - Yao Lu
- Department of Bioengineering, University of California Berkeley, Berkeley, California 94720, United States
| | - Benjamin D Fellows
- Department of Bioengineering, University of California Berkeley, Berkeley, California 94720, United States
| | - Prashant Chandrasekharan
- Department of Bioengineering, University of California Berkeley, Berkeley, California 94720, United States
| | - Steven M Conolly
- Department of Bioengineering, University of California Berkeley, Berkeley, California 94720, United States
- Department of Electrical Engineering and Computer Sciences, University of California Berkeley, Berkeley, California 94720, United States
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6
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Xu N, Yu Y, Zhai W, Wang J, Wei B. A high-temperature acoustic field measurement and analysis system for determining cavitation intensity in ultrasonically solidified metallic alloys. ULTRASONICS SONOCHEMISTRY 2023; 94:106343. [PMID: 36858007 PMCID: PMC9989687 DOI: 10.1016/j.ultsonch.2023.106343] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/06/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
A high-temperature acoustic field measurement and analysis system (HTAFS) was self-designed and developed to achieve real-time acoustic field analysis and quantitative cavitation characterization within high-temperature liquids. The acoustic signal was acquired by a high-temperature resistant waveguide and calibrated by separate compensation of line and continuous spectra to eliminate frequency offsets. Moreover, a new method was proposed to derive from the continuous-spectrum sound intensity and line-spectrum sound intensity in the frequency band above 1.5 times the fundamental frequency to characterize the intensity of transient cavitation and stable cavitation. The acoustic field characteristics within solidifying liquid Al-7 %Si alloy were successfully determined by this system. With the increase of ultrasound amplitude, the acoustic pressure in the alloy melt increased to be stable, the transient cavitation intensity first rose and then declined, and the stable cavitation intensity remained unchanged. Combined with the structural evolution of the primary α(Al) phase, the transient cavitation intensity was determined to be the dominant factor for the ultrasound-induced grain refinement effect.
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Affiliation(s)
- Nanxuan Xu
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710129, People's Republic of China
| | - Yang Yu
- School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710129, People's Republic of China
| | - Wei Zhai
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710129, People's Republic of China
| | - Jianyuan Wang
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710129, People's Republic of China.
| | - Bingbo Wei
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710129, People's Republic of China
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7
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Chen M, Zhuang K, Sui J, Sun C, Song Y, Jin N. Hydrodynamic cavitation-enhanced photocatalytic activity of P-doped TiO 2 for degradation of ciprofloxacin: Synergetic effect and mechanism. ULTRASONICS SONOCHEMISTRY 2023; 92:106265. [PMID: 36527763 PMCID: PMC9760655 DOI: 10.1016/j.ultsonch.2022.106265] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/26/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
Hybrid methods with an enhanced oxidation capacity have been proposed for the removal of organic contaminants based on combining hydrodynamic cavitation (HC) with advanced oxidation processes (AOPs). In this study, we utilize the synergetic effect between photocatalytic processes and HC to strengthen ciprofloxacin (CIP) degradation by P-doped TiO2 catalysts. In comparison to a degradation ratio of 20.37 % in HC and 55.7 % in P-TiO2-based photocatalytic processes alone, the CIP degradation ratio reached as high as 90.63 % in HC-assisted photocatalytic processes with the optimal experimental parameters. The mechanic microjets treatment originated from HC make P-TiO2 nano photocatalysts with significantly increased surface area, smaller particle sizes, cleaner surface and improved dispersion, which were found using SEM, TEM, and BET analysis. Possible degradation mechanisms and reaction pathways of CIP during hybrid HC + photocatalytic processes were explored by coupling free radical capture experiments and liquid chromatography-mass spectrometry . This hybrid HC + photocatalytic technique has a potential application in the treatment of antibiotic sewage at the industrial level.
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Affiliation(s)
- Mengfan Chen
- College of Environment, Liaoning University, Shenyang 110036, PR China
| | - Kai Zhuang
- College of Environment, Liaoning University, Shenyang 110036, PR China
| | - Jiayi Sui
- College of Environment, Liaoning University, Shenyang 110036, PR China
| | - Congting Sun
- College of Environment, Liaoning University, Shenyang 110036, PR China.
| | - Youtao Song
- College of Environment, Liaoning University, Shenyang 110036, PR China.
| | - Nanxun Jin
- College of Environment, Liaoning University, Shenyang 110036, PR China
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8
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Shao B, Chen F, Wang J, Zhai W. Cavitation Regulated Sonochemical Synthesis of Flexible Self-Supported CuO@PDA/CC Electrode for Highly Sensitive Glucose Sensor. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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9
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Construction of Z-scheme (TiO2/Er3+:YAlO3)/NiFe2O4 photocatalyst composite for intensifying hydrodynamic cavitation degradation of oxytetracycline in aqueous solution. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121138] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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10
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Ge M, Sun C, Zhang G, Coutier-Delgosha O, Fan D. Combined suppression effects on hydrodynamic cavitation performance in Venturi-type reactor for process intensification. ULTRASONICS SONOCHEMISTRY 2022; 86:106035. [PMID: 35580542 PMCID: PMC9117695 DOI: 10.1016/j.ultsonch.2022.106035] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/18/2022] [Accepted: 05/09/2022] [Indexed: 05/13/2023]
Abstract
Hydrodynamic cavitation is an emerging intensification technology in water treatment or chemical processing, and Venturi-type cavitation reactors exhibit advantages for industrial-scale production. The effects of temperature on hydrodynamic cavitating flows are investigated to find the optimum reaction conditions enhancing cavitating treatment intensity. Results show that the cavitation performance, including the cavitation intensity and cavitation unsteady behavior, is influenced by (1) cavitation number σ (the pressure difference affecting the vaporization process), (2) Reynolds number Re (the inertial/viscous ratio affecting the bubble size and liquid-vapor interface area), and (3) thermodynamic parameter Σ (the thermal effect affecting the temperature drop). With increasing temperature, the cavitation length first increases and then decreases, with a cavitation intensity peak at the transition temperature of 58 °C. With the growth of cavitation extent, the cavity-shedding regimes tend to transition from the attached sheet cavity to the periodic cloud cavity, and the vapor volume fluctuating frequency decreases accordingly. A combined suppression parameter (CSP) is provided to predict that, with increasing CSP value, the cavitation intensity can be decreased. Recommendations are given that working under the low-CSP range (55-60 °C) could enhance the intensification of the cavitation process.
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Affiliation(s)
- Mingming Ge
- Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China; School of Engineering, Westlake University, Xihu District, 310024 Hangzhou, China; Kevin T. Crofton Department of Aerospace and Ocean Engineering, Virginia Tech, Blacksburg, VA 24060, USA
| | - Chuanyu Sun
- Section of "Chemistry for the Technology" ChemTech, Department of Industrial Engineering, University of Padova, I-35131 Padova (PD), Italy
| | - Guangjian Zhang
- Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China; Kevin T. Crofton Department of Aerospace and Ocean Engineering, Virginia Tech, Blacksburg, VA 24060, USA.
| | - Olivier Coutier-Delgosha
- Kevin T. Crofton Department of Aerospace and Ocean Engineering, Virginia Tech, Blacksburg, VA 24060, USA.
| | - Dixia Fan
- School of Engineering, Westlake University, Xihu District, 310024 Hangzhou, China.
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11
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Urango ACM, Strieder MM, Silva EK, Meireles MAA. Impact of Thermosonication Processing on Food Quality and Safety: a Review. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-022-02760-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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12
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Yi L, Qin J, Sun H, Ruan Y, Zhao L, Xiong Y, Wang J, Fang D. Improved hydrodynamic cavitation device with expanded orifice plate for effective chlorotetracycline degradation: Optimization of device and operation parameters. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119840] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Wu P, Wang X, Lin W, Bai L. Acoustic characterization of cavitation intensity: A review. ULTRASONICS SONOCHEMISTRY 2022; 82:105878. [PMID: 34929549 PMCID: PMC8799601 DOI: 10.1016/j.ultsonch.2021.105878] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/13/2021] [Accepted: 12/14/2021] [Indexed: 05/26/2023]
Abstract
Cavitation intensity is used to describe the activity of cavitation, and several methods are developed to identify the intensity of cavitation. This work aimed to provide an overview and discussion of the several existing characterization methods for cavitation intensity, three acoustic approaches for charactering cavitation were discussed in detail. It was showed that cavitation noise spectrum is too complex and there are some differences and disputes on the characterization of cavitation intensity by cavitation noise. In this review, we recommended a total cavitation noise intensity estimated via the integration of real cavitation noise spectrum over full frequency domain instead of artificially adding inaccurate filtering processing.
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Affiliation(s)
- 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.
| | - Xiuming 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
| | - Weijun Lin
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lixin Bai
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
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14
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Zheng J, Guo Y, Zhu L, Deng H, Shang Y. Cavitation effect in two-dimensional ultrasonic rolling process. ULTRASONICS 2021; 115:106456. [PMID: 33933855 DOI: 10.1016/j.ultras.2021.106456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 04/15/2021] [Accepted: 04/20/2021] [Indexed: 06/12/2023]
Abstract
The ultrasonic cavitation effect can improve the machining quality. In order to study the formation process of cavitation in two-dimensional ultrasonic rolling process (TDUR) and its influence on processing, a simulation and experimental study of cavitation in TDUR was conducted to further improve the processing quality. The pressure distribution model and the cavitation model of the two-phase mixed flow around the roller in TDUR were constructed by combining the ideal bubble dynamics theory. And the cavitation intensity was evaluated by the vapor volume fraction (VVF). The formation process of cavitation effect in the flow field was analyzed by finite element analysis, and the effects of different inlet pressures and different pipe structures on the cavitation were studied. TDUR experiments were carried out to study the changes of surface roughness and residual stress of the workpiece under the effect of ultrasonic cavitation, and the positive effect of cavitation effect was verified. The simulation results show that the cavitation effect mainly occurs in the left half of the roller and the rolling area, and the cavitation in the left half of the roller changes from transient cavitation to steady-state cavitation as the inlet pressure increases. Different inlet pressures in the rolling region always show periodic transient cavitation, with obvious cavitation bubbles generation, expansion and collapse processes. The lower the inlet pressures in the straight and inverted trumpet pipe, the stronger the transient cavitation effect. The experimental results show that the cavitation effect can further improve the surface strengthening quality of the workpiece. Under the same process parameters, the surface roughness of the workpiece can be reduced by up to 47.7% and the residual compressive stress of the surface can be increased by up to 10.2%. Therefore, the cavitation effect can be applied in ultrasonic rolling process to further improve the surface strengthening quality, and the straight pipe at atmospheric inlet pressure is preferred in TDUR.
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Affiliation(s)
- Jianxin Zheng
- College of Mechanical & Power Engineering, Henan Polytechnic University, Jiaozuo 454003, PR China.
| | - Yonglei Guo
- College of Mechanical & Power Engineering, Henan Polytechnic University, Jiaozuo 454003, PR China
| | - Lixin Zhu
- College of Mechanical & Power Engineering, Henan Polytechnic University, Jiaozuo 454003, PR China
| | - Hanlin Deng
- College of Mechanical & Power Engineering, Henan Polytechnic University, Jiaozuo 454003, PR China
| | - Yingju Shang
- College of Mechanical & Power Engineering, Henan Polytechnic University, Jiaozuo 454003, PR China
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15
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Lin YC, Shih CP, Chen HC, Chou YL, Sytwu HK, Fang MC, Lin YY, Kuo CY, Su HH, Hung CL, Chen HK, Wang CH. Ultrasound Microbubble-Facilitated Inner Ear Delivery of Gold Nanoparticles Involves Transient Disruption of the Tight Junction Barrier in the Round Window Membrane. Front Pharmacol 2021; 12:689032. [PMID: 34262458 PMCID: PMC8273281 DOI: 10.3389/fphar.2021.689032] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/16/2021] [Indexed: 11/15/2022] Open
Abstract
The application of ultrasound microbubbles (USMBs) enhances the permeability of the round window membrane (RWM) and improves drug delivery to the inner ear. In this study, we investigated the efficiency of USMB-aided delivery of chitosan-coated gold nanoparticles (CS-AuNPs) and the mechanism of USMB-mediated enhancement of RMW permeability. We exposed mouse inner ears to USMBs at an intensity of 2 W/cm2 and then filled the tympanic bulla with CS-AuNPs or fluorescein isothiocyanate-decorated CS-AuNPs (FITC-CS-AuNPs). The membrane uptake of FITC-CS-AuNPs and their depth of permeation into the three-layer structure of the RWM, with or without prior USMB treatment, were visualized by z-stack confocal laser scanning microscopy. Ultrastructural changes in the RWM due to USMB-mediated cavitation appeared as sunburn-like peeling and various degrees of depression in the RWM surface, with pore-like openings forming in the outer epithelium. This disruption of the outer epithelium was paralleled by a transient reduction in tight junction (TJ)-associated protein levels in the RWM and an enhanced delivery of FITC-CS-AuNPs into the RWM. Without prior USMB exposure, the treatment with CS-AuNPs also caused a noticeable reduction in TJ proteins of the RWM. Our findings indicated that the combined treatment with USMBs and CS-AuNPs represents a promising and efficient drug and gene delivery vehicle for a trans-RWM approach for inner ear therapy. The outer epithelial layer of the RWM plays a decisive role in controlling the transmembrane transport of substances such as CS-AuNPs following the administration of USMBs. Most importantly, the enhanced permeation of AuNPs involved the transient disruption of the TJ-created paracellular barrier in the outer epithelium of the RWM.
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Affiliation(s)
- Yi-Chun Lin
- National Defense Medical Center, Graduate Institute of Medical Sciences, Taipei, Taiwan
| | - Cheng-Ping Shih
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Hsin-Chien Chen
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Ying-Liang Chou
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,Department of Otorhinolaryngology, Taichung Armed Forces General Hospital, Taichung, Taiwan
| | - Huey-Kang Sytwu
- National Defense Medical Center, Graduate Institute of Medical Sciences, Taipei, Taiwan.,National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan Town, Miaoli County, Taiwan
| | - Mei-Cho Fang
- Laboratory Animal Center, National Defense Medical Center, Taipei, Taiwan
| | - Yuan-Yung Lin
- National Defense Medical Center, Graduate Institute of Medical Sciences, Taipei, Taiwan.,Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chao-Yin Kuo
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Hsiao-Han Su
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chia-Lien Hung
- Department of Otorhinolaryngology, Taichung Armed Forces General Hospital, Taichung, Taiwan
| | - Hang-Kang Chen
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,Department of Otorhinolaryngology, Taichung Armed Forces General Hospital, Taichung, Taiwan
| | - Chih-Hung Wang
- National Defense Medical Center, Graduate Institute of Medical Sciences, Taipei, Taiwan.,Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.,Department of Otorhinolaryngology, Taichung Armed Forces General Hospital, Taichung, Taiwan.,National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan Town, Miaoli County, Taiwan
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16
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Degradation of norfloxacin in aqueous solution using hydrodynamic cavitation: Optimization of geometric and operation parameters and investigations on mechanism. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118166] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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17
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Abstract
Due to the increasing maintenance costs of hydraulic machines related to the damages caused by cavitation erosion and/or erosion of solid particles, as well as in tribological connections, surface protection of these components is very important. Up to now, numerous investigations of resistance of coatings, mainly nitride coatings, such as CrN, TiN, TiCN, (Ti,Cr)N coatings and multilayer TiN/Ti, ZrN/CrN and TN/(Ti,Al)N coatings, produced by physical vapor deposition (PVD) method using different techniques of deposition, such as magnetron sputtering, arc evaporation or ion plating, to cavitation erosion, solid particle erosion and wear have been made. The results of these investigations, degradation processes and main test devices used are presented in this paper. An effect of deposition of mono- and multi-layer PVD coatings on duration of incubation period, cumulative weight loss and erosion rate, as well as on wear rate and coefficient of friction in tribological tests is discussed. It is shown that PVD coating does not always provide extended incubation time and/or improved resistance to mentioned types of damage. The influence of structure, hardness, residence to plastic deformation and stresses in the coatings on erosion and wear resistance is discussed. In the case of cavitation erosion and solid particle erosion, a limit value of the ratio of hardness (H) to Young’s modulus (E) exists at which the best resistance is gained. In the case of tribological tests, the higher the H/E ratio and the lower the coefficient of friction, the lower the wear rate, but there are also many exceptions.
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