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Jagadale VS, Deshmukh D, Hanstorp D, Mishra YN. Bubble dynamics and atomization of acoustically levitated diesel and biodiesel droplets using femtosecond laser pulses. Sci Rep 2024; 14:8285. [PMID: 38594290 PMCID: PMC11004170 DOI: 10.1038/s41598-024-57802-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 03/21/2024] [Indexed: 04/11/2024] Open
Abstract
This study focuses on the bubble dynamics and associated breakup of individual droplets of diesel and biodiesel under the influence of femtosecond laser pulses. The bubble dynamics were examined by suspending the droplets in the air through an acoustically levitated setup. The laser pulse energies ranged from 25 to 1050 µJ, and droplet diameters varied between 0.25 and 1.5 mm. High-speed shadowgraphy was employed to examine the influence of femtosecond laser intensity and multiple laser pulses on various spatial-temporal parameters. Four distinct sequences of regimes have been identified, depending on early and late times: bubble creation by individual laser pulses, coalescence, bubble rupture and expansion, and droplet fragmentation. At all laser intensities, early-time dynamics showed only bubble generation, while specifically at higher intensities, late-time dynamics revealed droplet breaking. The droplet breakup is further categorized into three mechanisms: steady sheet collapse, unstable sheet breakup, and catastrophic breakup, all following a well-known ligament and secondary breakup process. The study reveals that laser pulses with high repetition rates and moderate laser energy were the optimal choice for precise bubble control and cutting.
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Affiliation(s)
- Vishal S Jagadale
- Spray and Combustion Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Indore, Indore, MP, 453552, India
| | - Devendra Deshmukh
- Spray and Combustion Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Indore, Indore, MP, 453552, India
| | - Dag Hanstorp
- Department of Physics, University of Gothenburg, 41296, Gothenburg, Sweden.
| | - Yogeshwar Nath Mishra
- Spray and Combustion Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Indore, Indore, MP, 453552, India.
- Department of Physics, University of Gothenburg, 41296, Gothenburg, Sweden.
- NASA-Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91109, USA.
- Currently with Visual Computing Center, KAUST, Thuwal, Saudi Arabia.
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Rao DCK, Mooss VS, Mishra YN, Hanstorp D. Controlling bubble generation by femtosecond laser-induced filamentation. Sci Rep 2022; 12:15742. [PMID: 36131083 PMCID: PMC9492780 DOI: 10.1038/s41598-022-20066-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 09/08/2022] [Indexed: 11/09/2022] Open
Abstract
Femtosecond laser-induced optical breakdown in liquids results in filamentation, which involves the formation and collapse of bubbles. In the present work, we elucidate spatio-temporal evolution, interaction, and dynamics of the filamentation-induced bubbles in a liquid pool as a function of a broad spectrum of laser pulse energies (∼1 to 800 µJ), liquid media (water, ethanol, and glycerol), and the number of laser pulses. Filament attributes such as length and diameter have been demarcated and accurately measured by employing multiple laser pulses and were observed to have a logarithmic dependence on laser energy, irrespective of the medium. The size distribution of persisting microbubbles is controlled by varying the pulse energy and the number of pulses. Our experimental results reveal that introducing consecutive pulses leads to strong interaction and coalescence of the pulsating bubbles via Bjerknes force due to laser-induced acoustic field generation. The successive pulses also influence the population density and size distribution of the micro-bubbles. We also explore the size, shape, and agglomeration of bubbles near the focal region by controlling the laser energy for different liquids. The insights from this work on filamentation-induced bubble dynamics can be of importance in diverse applications such as surface cleaning, fluid mixing and emulsification, and biomedical engineering.
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Affiliation(s)
- D Chaitanya Kumar Rao
- Department of Physics, University of Gothenburg, 41296, Gothenburg, Sweden. .,Department of Aerospace Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India.
| | - Veena S Mooss
- Department of Physics, University of Gothenburg, 41296, Gothenburg, Sweden
| | - Yogeshwar Nath Mishra
- NASA-Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91109, USA
| | - Dag Hanstorp
- Department of Physics, University of Gothenburg, 41296, Gothenburg, Sweden
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Observation of the Formation of Multiple Shock Waves at the Collapse of Cavitation Bubbles for Improvement of Energy Convergence. ENERGIES 2022. [DOI: 10.3390/en15072305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The collapse of a cavitation bubble is always associated with the radiation of intense shock waves, which are highly relevant in a variety of applications. To radiate a strong shock wave, it is necessary to converge energy at the collapse, and understanding generation processes of multiple shock waves at the collapse is a key issue. In the present study, we investigated the formation of multiple shock waves generated by the collapse of a laser-induced bubble. We used a high-speed imaging system with unprecedented spatiotemporal resolution. We developed a triggering procedure of high precision and reproducibility based on the deflection of a laser beam by the shockwave passage. The high-speed videos clearly show that: (A) a first shockwave is emitted as the micro-jet hits the bottom of the bubble interface, followed by a second shock wave due to the collapse of the remaining toroidal bubble; (B) a sequential collapse of elongated bubbles, where the top part of the bubble collapses slightly before the bottom of the bubble; and (C) the formation of compression shock waves from multiple sites on a toroidal bubble.
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Han D, Yuan R, Jiang X, Geng S, Zhong Q, Zhang Y, Yao Z, Wang F. Nanosecond resolution photography system for laser-induced cavitation based on PIV dual-head laser and industrial camera. ULTRASONICS SONOCHEMISTRY 2021; 78:105733. [PMID: 34536700 PMCID: PMC8452887 DOI: 10.1016/j.ultsonch.2021.105733] [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: 05/20/2021] [Revised: 08/09/2021] [Accepted: 08/19/2021] [Indexed: 06/13/2023]
Abstract
The detailed study of the initial and collapse processes of the laser-induced cavitation requires nanosecond resolution (both nanoseconds exposure and nanoseconds interframe time) of the photography measurement system. The high-speed video cameras are difficult to achieve nanoseconds interval time. The framing and streak cameras are able to reach the nanosecond resolution, but their complex technology and expensive prices make them far from being commercially available. The present study builds a nanosecond resolution photography system based on PIV dual-head laser and conventional industrial camera. The exposure time of the photography system is controlled by the laser pulse width, which is 5 ns. The two heads of the PIV laser are operated independently thus the smallest time interval between two laser pulses can be set to less than 10 ns. A double-pulse per-exposure imaging technique is used to record the information from two laser pulses on single frame on a low-speed industrial camera. The nanosecond resolution photography system was applied to the laser-induced cavitation experiments to verify the reliability of the measurement results. The measurement of the shock wave velocity demonstrates the ability of the system to capture ultrafast phenomena, which reduces from 3611 m/s to approximately 1483 m/s within 400 ns. The experimental results also reveal the asymmetric evolution of laser-induced cavitation bubbles. The major axis of the ellipsoidal bubble has twice reversals along the laser propagation and perpendicular direction from the laser-induced breakdown to the first collapse.
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Affiliation(s)
- Dixi Han
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Rui Yuan
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Xinkuan Jiang
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Siyuan Geng
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Qiang Zhong
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; Beijing Engineering Research Center of Safety and Energy Saving Technology for Water Supply Network System, China Agricultural University, Beijing 100083, China.
| | - Yifan Zhang
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Zhifeng Yao
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; Beijing Engineering Research Center of Safety and Energy Saving Technology for Water Supply Network System, China Agricultural University, Beijing 100083, China
| | - Fujun Wang
- College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; Beijing Engineering Research Center of Safety and Energy Saving Technology for Water Supply Network System, China Agricultural University, Beijing 100083, China
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Bai L, Yan J, Zeng Z, Ma Y. Cavitation in thin liquid layer: A review. ULTRASONICS SONOCHEMISTRY 2020; 66:105092. [PMID: 32259698 DOI: 10.1016/j.ultsonch.2020.105092] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/06/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
This review tries to cover as many research fields and literatures associated with cavitation in thin liquid layer as possible. The intent was to summarize (i) list all the research fields related to cavitation in thin liquid layer that can be collected, (ii) advances in the investigation of cavitation in thin liquid layer, and (iii) draw attention to the relatively macroscopic cavitation behavior in thin liquid layer.
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Affiliation(s)
- Lixin Bai
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.
| | - Jiuchun Yan
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
| | - Zhijie Zeng
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
| | - Yuhang Ma
- State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
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Zhang L, Zhang J, Deng J. Numerical investigation on the collapse of a bubble cluster near a solid wall. Phys Rev E 2019; 99:043108. [PMID: 31108661 DOI: 10.1103/physreve.99.043108] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Indexed: 11/07/2022]
Abstract
This paper studies numerically the collapse of a cluster of cavitation bubbles (as a primitive model for a bubble cloud) near a solid wall. The homogeneous two-phase mixture model is used, with the liquid-vapor interface resolved by volume of fluid method. The liquid is treated as compressible, allowing the propagation of pressure waves at the speeds determined by a state equation. This cluster consists of 27 identical bubbles, evenly distributed in a cubic region, with various bubble-wall and bubble-bubble distances considered. Our simulations suggest that the bubble-wall distance plays a more significant role. The maximum impulsive pressure of 41MPa is achieved when the cluster is very close to the wall. The inward progress of collapse is observed by examining the evolutions of bubble shapes and flow fields, with two distinctly different sequences of collapse identified between the small and large bubble-wall distances. At a large bubble distance, the centermost bubble is the last to collapse, while at a small bubble distance, it is the central bubble nearest to the wall which collapses lastly. This difference can also explain the more intensive impulsive pressure for the smaller bubble-wall distances. The proposed numerical approach is of special interest because it can resolve the details of bubble-bubble and bubble-wall interactions, which are significant to the study of the collapse of a cavitation cloud, and its potential damage to hydraulic systems.
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Affiliation(s)
- Lingxin Zhang
- Department of Mechanics, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Jing Zhang
- Department of Mechanics, Zhejiang University, Hangzhou 310027, People's Republic of China
| | - Jian Deng
- Department of Mechanics, Zhejiang University, Hangzhou 310027, People's Republic of China
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Gan Z, Liu L, Pan P, Lin Y, Shen J, Jia B. Engineering the carrier dynamics of g-C 3N 4 by rolling up planar sheets into nanotubes via ultrasonic cavitation. NANOSCALE 2018; 10:22448-22455. [PMID: 30478465 DOI: 10.1039/c8nr06560h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Rolling up 2D atomic layered materials into 1D nanotubes gives rise to fascinating properties due to their lower dimension, higher anisotropy, and strain effects. In this work, the curving of 2D graphitic C3N4 (g-C3N4) sheets into 1D nanotubes is demonstrated for the first time through simple and clean ultrasonic treatments. The steady-state optical transitions are slightly enhanced while the localized trapping of excited carriers is considerably suppressed after rolling up the planar sheets into nanotubes. The mechanical method to modulate the dimension scarcely changes the chemical structures, enabling the pure investigation on shape-induced physical effects. As a proof of principle, this work confirms the dynamics of excited carriers, and the photoelectronic properties of 2D semiconductors can be significantly engineered by a simple morphological evolution.
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Affiliation(s)
- Zhixing Gan
- Key Laboratory of Optoelectronic Technology of Jiangsu Province, School of Physics and Technology, Nanjing Normal University, Nanjing 210023, China.
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Improved Instruments and Methods for the Photographic Study of Spark-Induced Cavitation Bubbles. WATER 2018. [DOI: 10.3390/w10111683] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An underwater spark is able to induce a cavitation bubble, and this principle has been utilized to make cavitation bubble generators for several decades. In this paper, an improved instrument for generating spark-induced cavitation bubbles is described in detail. The voltage time history inside the instrument is measured to show the working process and principle. Cavitation bubbles are generated by the instrument and recorded by a high-speed camera. The radius time history of the bubble is obtained using an image processing algorithm. The ratio of its minimum radius to its maximum radius reaches ~0.2, which indicates that there is little undissolved gas in the bubble. With the radius time history, the velocity fields around the bubbles were calculated by the 1D continuity flow equation, and the pressure fields were calculated by the 1D Euler equation. One cavitation bubble is chosen and discussed in detail. The velocity and pressure on the bubble interface achieve their maximums (~25 m/s and ~1.2 MPa, respectively) at the same time, when the radius is at its minimum (~1 mm). Some statistical results are also presented to show the effect of the instrument.
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Fu L, Wang S, Xin J, Wang S, Yao C, Zhang Z, Wang J. Experimental investigation on multiple breakdown in water induced by focused nanosecond laser. OPTICS EXPRESS 2018; 26:28560-28575. [PMID: 30470031 DOI: 10.1364/oe.26.028560] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/19/2018] [Indexed: 06/09/2023]
Abstract
Multiple breakdowns in liquids still remains obscure for its complex, non-equilibrium and transient dynamic process. We introduced three methods, namely, plasma imaging, light-scattering technique, and acoustic detection, to measure the multiple breakdown in water induced by focused nanosecond laser pulses simultaneously. Our results showed that linear dependence existed among the cavitation-bubble lifetime, the far-field peak pressure of the initial shock wave, and the corresponding plasma volume. Such a relationship can be used to evaluate the ideal size and energy of each bubble during multiple breakdown. The major bubble lifetime was hardly affected by the inevitable coalescence of cavitation bubbles, thereby confirming the availability of light-scattering technique on the estimation of bubble size during multiple breakdown. Whereas, the strength of collapse-shock-wave and the subsequent rebound of bubbles was strongly influenced, i.e., the occurrence of multiple breakdown suppressed the cavitation-bubble energy being converted into collapse-shock-wave energy but enhanced conversion into rebound-bubble energy. This study is a valuable contribution to research on the rapid mixing of microfluidics, damage control of microsurgery, and photoacoustic applications.
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Karpukhin V, Malikov M, Borodina T, Valyano G, Gololobova O, Strikanov D. Structural, Morphological and Optical Properties of Nanoproducts of Zirconium Target Laser Ablation in Water and Aqueous SDS Solutions. CHEMISTRY & CHEMICAL TECHNOLOGY 2017. [DOI: 10.23939/chcht11.01.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Vyas N, Pecheva E, Dehghani H, Sammons RL, Wang QX, Leppinen DM, Walmsley AD. High Speed Imaging of Cavitation around Dental Ultrasonic Scaler Tips. PLoS One 2016; 11:e0149804. [PMID: 26934340 PMCID: PMC4775067 DOI: 10.1371/journal.pone.0149804] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 02/04/2016] [Indexed: 11/20/2022] Open
Abstract
Cavitation occurs around dental ultrasonic scalers, which are used clinically for removing dental biofilm and calculus. However it is not known if this contributes to the cleaning process. Characterisation of the cavitation around ultrasonic scalers will assist in assessing its contribution and in developing new clinical devices for removing biofilm with cavitation. The aim is to use high speed camera imaging to quantify cavitation patterns around an ultrasonic scaler. A Satelec ultrasonic scaler operating at 29 kHz with three different shaped tips has been studied at medium and high operating power using high speed imaging at 15,000, 90,000 and 250,000 frames per second. The tip displacement has been recorded using scanning laser vibrometry. Cavitation occurs at the free end of the tip and increases with power while the area and width of the cavitation cloud varies for different shaped tips. The cavitation starts at the antinodes, with little or no cavitation at the node. High speed image sequences combined with scanning laser vibrometry show individual microbubbles imploding and bubble clouds lifting and moving away from the ultrasonic scaler tip, with larger tip displacement causing more cavitation.
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Affiliation(s)
- Nina Vyas
- Physical Sciences of Imaging for Biomedical Sciences (PSIBS) Doctoral Training Centre, College of Engineering & Physical Sciences, University of Birmingham, Birmingham, B15 2TT, United Kingdom
- School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, St Chad's Queensway, Birmingham, B4 6NN, United Kingdom
| | - Emilia Pecheva
- School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, St Chad's Queensway, Birmingham, B4 6NN, United Kingdom
| | - Hamid Dehghani
- School of Computer Science, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom
| | - Rachel L. Sammons
- School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, St Chad's Queensway, Birmingham, B4 6NN, United Kingdom
| | - Qianxi X. Wang
- School of Mathematics, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom
| | - David M. Leppinen
- School of Mathematics, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom
| | - A. Damien Walmsley
- School of Dentistry, College of Medical and Dental Sciences, University of Birmingham, St Chad's Queensway, Birmingham, B4 6NN, United Kingdom
- * E-mail:
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Tangeysh B, Moore Tibbetts K, Odhner JH, Wayland BB, Levis RJ. Triangular gold nanoplate growth by oriented attachment of Au seeds generated by strong field laser reduction. NANO LETTERS 2015; 15:3377-3382. [PMID: 25844894 DOI: 10.1021/acs.nanolett.5b00709] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The synthesis of surfactant-free Au nanoplates is desirable for the development of biocompatible therapeutics/diagnostics. Rapid Δ-function energy deposition by irradiation of aqueous KAuCl4 solution with a 5 s burst of intense shaped laser pulses, followed by slow addition of H2O2, results in selective formation of nanoplates with no additional reagents. The primary mechanism of nanoplate formation is found to be oriented attachment of the spherical seeds, which self-recrystallize to form crystalline Au nanoplates.
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Affiliation(s)
- Behzad Tangeysh
- †Department of Chemistry and ‡Center for Advanced Photonics Research, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - Katharine Moore Tibbetts
- †Department of Chemistry and ‡Center for Advanced Photonics Research, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - Johanan H Odhner
- †Department of Chemistry and ‡Center for Advanced Photonics Research, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - Bradford B Wayland
- †Department of Chemistry and ‡Center for Advanced Photonics Research, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - Robert J Levis
- †Department of Chemistry and ‡Center for Advanced Photonics Research, Temple University, Philadelphia, Pennsylvania 19122, United States
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Kim HT, Bae H, Zhang Z, Kusimo A, Yu M. Optofluidic microvalve-on-a-chip with a surface plasmon-enhanced fiber optic microheater. BIOMICROFLUIDICS 2014; 8:054126. [PMID: 25538813 PMCID: PMC4224683 DOI: 10.1063/1.4900978] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 10/22/2014] [Indexed: 05/20/2023]
Abstract
We present an optofluidic microvalve utilizing an embedded, surface plasmon-enhanced fiber optic microheater. The fiber optic microheater is formed by depositing a titanium thin film on the roughened end-face of a silica optical fiber that serves as a waveguide to deliver laser light to the titanium film. The nanoscale roughness at the titanium-silica interface enables strong light absorption enhancement in the titanium film through excitation of localized surface plasmons as well as facilitates bubble nucleation. Our experimental results show that due to the unique design of the fiber optic heater, the threshold laser power required to generate a bubble is greatly reduced and the bubble growth rate is significantly increased. By using the microvalve, stable vapor bubble generation in the microchannel is demonstrated, which does not require complex optical focusing and alignment. The generated vapor bubble is shown to successfully block a liquid flow channel with a size of 125 μm × 125 μm and a flow rate of ∼10 μl/min at ∼120 mW laser power.
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Affiliation(s)
- Hyun-Tae Kim
- Department of Mechanical Engineering, University of Maryland , College Park, Maryland 20742, USA
| | - Hyungdae Bae
- Department of Mechanical Engineering, University of Maryland , College Park, Maryland 20742, USA
| | - Zhijian Zhang
- Department of Mechanical Engineering, University of Maryland , College Park, Maryland 20742, USA
| | - Abisola Kusimo
- Department of Mechanical Engineering, University of Maryland , College Park, Maryland 20742, USA
| | - Miao Yu
- Department of Mechanical Engineering, University of Maryland , College Park, Maryland 20742, USA
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Xing X, Zheng J, Sun C, Li F, Zhu D, Lei L, Cai X, Wu T. Graphene oxide-deposited microfiber: a new photothermal device for various microbubble generation. OPTICS EXPRESS 2013; 21:31862-71. [PMID: 24514782 DOI: 10.1364/oe.21.031862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
This study makes a claim of utilizing the photothermal effect of graphene oxide nanosheets (GONs) to effectively produce various microbubbles in an optical microfiber system at infrared optical communications band. A low power continuous-wave light at wavelength of 1527-1566 nm was launched into the microfiber to form GONs-deposition which acted as a linear heat source for creating various microbubbles. Both thermal convection flow and optical gradient force were responsible for the driving force to assemble GONs onto the microfiber. This simple optical fiber system can be used for assembling other micro/nanoscale particles and biomolecules, which has prospective applications in sensing, microfluidics, virus detection, and other biochip techniques.
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Chen J, Zhang HC, Shen ZH, Lu J, Ni XW. Formation and dynamics of a toroidal bubble during laser propelling a cavity object in water. OPTICS LETTERS 2013; 38:3803-3806. [PMID: 24081057 DOI: 10.1364/ol.38.003803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We captured stable self-oscillations of a toroidal bubble moving away from a laser propelled cavity object in water using a high-speed imaging system. The entire laser propelling process generates a hemispherical bubble, two toroidal bubbles, and a microbubble cluster. The hemispherical bubble is formed by laser breakdown in water. The toroidal bubbles are formed by the variation of the pressure field as a result of the propagation, reflection, and convergence of the laser plasma shockwave in the cavity.
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Hsiao CT, Choi JK, Singh S, Chahine GL, Hay TA, Ilinskii YA, Zabolotskaya EA, Hamilton MF, Sankin G, Yuan F, Zhong P. Modelling single- and tandem-bubble dynamics between two parallel plates for biomedical applications. JOURNAL OF FLUID MECHANICS 2013; 716:10.1017/jfm.2012.526. [PMID: 24293683 PMCID: PMC3843546 DOI: 10.1017/jfm.2012.526] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Carefully timed tandem microbubbles have been shown to produce directional and targeted membrane poration of individual cells in microfluidic systems, which could be of use in ultrasound-mediated drug and gene delivery. This study aims at contributing to the understanding of the mechanisms at play in such an interaction. The dynamics of single and tandem microbubbles between two parallel plates is studied numerically and analytically. Comparisons are then made between the numerical results and the available experimental results. Numerically, assuming a potential flow, a three-dimensional boundary element method (BEM) is used to describe complex bubble deformations, jet formation, and bubble splitting. Analytically, compressibility and viscous boundary layer effects along the channel walls, neglected in the BEM model, are considered while shape of the bubble is not considered. Comparisons show that energy losses modify the bubble dynamics when the two approaches use identical initial conditions. The initial conditions in the boundary element method can be adjusted to recover the bubble period and maximum bubble volume when in an infinite medium. Using the same conditions enables the method to recover the full dynamics of single and tandem bubbles, including large deformations and fast re-entering jet formation. This method can be used as a design tool for future tandem-bubble sonoporation experiments.
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Affiliation(s)
- C.-T. Hsiao
- Dynaflow, Inc., 10621-J Iron Bridge Rd., Jessup, MD 20794, USA
- correspondence:
| | - J.-K. Choi
- Dynaflow, Inc., 10621-J Iron Bridge Rd., Jessup, MD 20794, USA
| | - S. Singh
- Dynaflow, Inc., 10621-J Iron Bridge Rd., Jessup, MD 20794, USA
| | - G. L. Chahine
- Dynaflow, Inc., 10621-J Iron Bridge Rd., Jessup, MD 20794, USA
| | - T. A. Hay
- Applied Research Laboratories, The University of Texas at Austin, Austin, TX 78713, USA
| | - Yu. A. Ilinskii
- Applied Research Laboratories, The University of Texas at Austin, Austin, TX 78713, USA
| | - E. A. Zabolotskaya
- Applied Research Laboratories, The University of Texas at Austin, Austin, TX 78713, USA
| | - M. F. Hamilton
- Applied Research Laboratories, The University of Texas at Austin, Austin, TX 78713, USA
| | - G. Sankin
- Department of Mechanical Engineering and Materials Science, Duke University, Box 90300, NC 27708, USA
| | - F. Yuan
- Department of Mechanical Engineering and Materials Science, Duke University, Box 90300, NC 27708, USA
| | - P. Zhong
- Department of Mechanical Engineering and Materials Science, Duke University, Box 90300, NC 27708, USA
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Leela C, Bagchi S, Tewari SP, Kiran PP. Shockwave and cavitation bubble dynamics of atmospheric air. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20135919003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Faccio D, Tamošauskas G, Rubino E, Darginavičius J, Papazoglou DG, Tzortzakis S, Couairon A, Dubietis A. Cavitation dynamics and directional microbubble ejection induced by intense femtosecond laser pulses in liquids. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2012; 86:036304. [PMID: 23031010 DOI: 10.1103/physreve.86.036304] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2012] [Revised: 05/21/2012] [Indexed: 06/01/2023]
Abstract
We study cavitation dynamics when focusing ring-shaped femtosecond laser beams in water. This focusing geometry reduces detrimental nonlinear beam distortions and enhances energy deposition within the medium, localized at the focal spot. We observe remarkable postcollapse dynamics of elongated cavitation bubbles with high-speed ejection of microbubbles out of the laser focal region. Bubbles are ejected along the laser axis in both directions (away and towards the laser). The initial shape of the cavitation bubble is also seen to either enhance or completely suppress jet formation during collapse. In the absence of jetting, microbubble ejection occurs orthogonal to the laser propagation axis.
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Affiliation(s)
- D Faccio
- School of Engineering and Physical Sciences, SUPA, Heriot-Watt University, Edinburgh EH14 4AS, Scotland, United Kingdom
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19
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Leighton TG. The inertial terms in equations of motion for bubbles in tubular vessels or between plates. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2011; 130:3333-8. [PMID: 22088006 DOI: 10.1121/1.3638132] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Equations resembling the Rayleigh-Plesset and Keller-Miksis equations are frequently used to model bubble dynamics in confined spaces, using the standard inertial term RR+3R([middle dot]) (2)/2, where R is the bubble radius. This practice has been widely assumed to be defensible if the bubble is much smaller than the radius of the confining vessel. This paper questions this assumption, and provides a simple rigid wall model for worst-case quantification of the effect on the inertial term of the specific confinement geometry. The relevance to a range of scenarios (including bubbles confined in microfluidic devices; or contained in test chambers for insonification or imaging; or in blood vessels) is discussed.
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Affiliation(s)
- T G Leighton
- Institute of Sound and Vibration Research, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom.
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20
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Jayasinghe AK, Rohner J, Hutson MS. Holographic UV laser microsurgery. BIOMEDICAL OPTICS EXPRESS 2011; 2:2590-2599. [PMID: 21991551 PMCID: PMC3184868 DOI: 10.1364/boe.2.002590] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2011] [Revised: 08/09/2011] [Accepted: 08/09/2011] [Indexed: 05/29/2023]
Abstract
We use a spatial light modulator (SLM) to diffract a single UV laser pulse to ablate multiple points on a Drosophila embryo. This system dynamically generates a phase hologram for ablating a user-defined pattern fast enough to be used with living, and thus moving, tissue. We demonstrate the ability of this single-pulse multi-point system to perform two experiments that are very difficult for conventional microsurgery-isolating single cells in vivo and measuring fast retractions from large incisions.
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Affiliation(s)
- Aroshan K Jayasinghe
- Department of Physics & Astronomy, Vanderbilt University, Nashville, TN 37235, USA
| | - Jason Rohner
- Department of Physics & Astronomy, Vanderbilt University, Nashville, TN 37235, USA
| | - M Shane Hutson
- Department of Physics & Astronomy, Vanderbilt University, Nashville, TN 37235, USA
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA
- Vanderbilt Institute for Integrative Biosystem Research & Education, Nashville, TN 37235, USA
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21
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Herbst DC, Zhang WW. Underwater bubble pinch-off: transient stretching flow. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2011; 84:026313. [PMID: 21929096 DOI: 10.1103/physreve.84.026313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2010] [Revised: 05/23/2011] [Indexed: 05/31/2023]
Abstract
At the point of pinch-off of an underwater air bubble, the speed of water rushing in diverges. Previous studies that assumed radial flow throughout showed that the local axial shape is two smoothly connected, slender cones that transition very slowly (logarithmically) to a cylindrical segment. Our simulations show that even with initially radial flow, a transient vertical flow develops with comparable speeds. Bernoulli pressure draws water into the singularity region while incompressibility forces it away from the neck minimum, generating significant vertical flows that rapidly slenderize and symmetrize the collapse region. This transition is due to a different mechanism, occurring much faster than previously expected. Vertical flows dictate the neck shape evolution.
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Affiliation(s)
- Daniel C Herbst
- Physics Department and the James Franck Institute, University of Chicago, Chicago, Illinois 60637, USA
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22
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Knott BC, LaRue JL, Wodtke AM, Doherty MF, Peters B. Communication: Bubbles, crystals, and laser-induced nucleation. J Chem Phys 2011; 134:171102. [DOI: 10.1063/1.3582897] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Brandon C. Knott
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106-5080, USA
| | - Jerry L. LaRue
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-5080, USA
| | - Alec M. Wodtke
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-5080, USA
- Institute of Physical Chemistry, Georg-August University of Gottingen, 37077 Gottingen, Germany
- Max Planck Society for the Advancement of Science, Max Planck Institute for Biophysical Chemistry, 37077 Gottingen, Germany
| | - Michael F. Doherty
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106-5080, USA
| | - Baron Peters
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106-5080, USA
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-5080, USA
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23
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Zhang K, Jian A, Zhang X, Wang Y, Li Z, Tam HY. Laser-induced thermal bubbles for microfluidic applications. LAB ON A CHIP 2011; 11:1389-95. [PMID: 21331412 DOI: 10.1039/c0lc00520g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We present a unique bubble generation technique in microfluidic chips using continuous-wave laser-induced heat and demonstrate its application by creating micro-valves and micro-pumps. In this work, efficient generation of thermal bubbles of controllable sizes has been achieved using different geometries of chromium pads immersed in various types of fluid. Effective blocking of microfluidic channels (cross-section 500 × 40 μm(2)) and direct pumping of fluid at a flow rate of 7.2-28.8 μl h(-1) with selectable direction have also been demonstrated. A particular advantage of this technique is that it allows the generation of bubbles at almost any location in the microchannel and thus enables microfluidic control at any point of interest. It can be readily integrated into lab-on-a-chip systems to improve functionality.
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Affiliation(s)
- Kai Zhang
- Department of Applied Physics and Materials Research Center, The Hong Kong Polytechnic University, Hong Kong, People's Republic of China
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24
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Toytman I, Simanovski D, Palanker D. Optical breakdown in transparent media with adjustable axial length and location. OPTICS EXPRESS 2010; 18:24688-24698. [PMID: 21164815 DOI: 10.1364/oe.18.024688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We demonstrate a highly elongated (aspect ratio over 500:1) optical breakdown in water produced by a single pulse of a picosecond laser focused with a combination of an axicon and a lens. Locations of the proximal and distal ends of the breakdown region can be adjusted by modifying radial intensity distribution of the incident beam with an amplitude mask. Using Fresnel diffraction theory we derive a transmission profile of the amplitude mask to create a uniform axial intensity distribution in the breakdown zone. Experimentally observed dynamics of the bubbles obtained with the designed mask is in agreement with the theoretical model. A system producing an adjustable cylindrical breakdown can be applied to fast linear or planar dissection of transparent materials. It might be useful for ophthalmic surgical applications including cataract surgery and crystalline lens softening.
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Affiliation(s)
- Ilya Toytman
- Hansen Experimental Physics Laboratory, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA.
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Lü T, Xiao Q, Xia D, Ruan K, Li Z. Cavitation effect of holmium laser pulse applied to ablation of hard tissue underwater. JOURNAL OF BIOMEDICAL OPTICS 2010; 15:048002. [PMID: 20799845 DOI: 10.1117/1.3470092] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
To overcome the inconsecutive drawback of shadow and schlieren photography, the complete dynamics of cavitation bubble oscillation or ablation products induced by a single holmium laser pulse [2.12 microm, 300 micros (FWHM)] transmitted in different core diameter (200, 400, and 600 microm) fibers is recorded by means of high-speed photography. Consecutive images from high-speed cameras can stand for the true and complete process of laser-water or laser-tissue interaction. Both laser pulse energy and fiber diameter determine cavitation bubble size, which further determines acoustic transient amplitudes. Based on the pictures taken by high-speed camera and scanned by an optical coherent microscopy (OCM) system, it is easily seen that the liquid layer at the distal end of the fiber plays an important role during the process of laser-tissue interaction, which can increase ablation efficiency, decrease heat side effects, and reduce cost.
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Affiliation(s)
- Tao Lü
- Huazhong University of Science and Technology, College of Optoelectronics Science and Engineering, Wuhan National Laboratory for Optoelectronics, Wuhan, China
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