1
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Solov’yov AV, Verkhovtsev AV, Mason NJ, Amos RA, Bald I, Baldacchino G, Dromey B, Falk M, Fedor J, Gerhards L, Hausmann M, Hildenbrand G, Hrabovský M, Kadlec S, Kočišek J, Lépine F, Ming S, Nisbet A, Ricketts K, Sala L, Schlathölter T, Wheatley AEH, Solov’yov IA. Condensed Matter Systems Exposed to Radiation: Multiscale Theory, Simulations, and Experiment. Chem Rev 2024; 124:8014-8129. [PMID: 38842266 PMCID: PMC11240271 DOI: 10.1021/acs.chemrev.3c00902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 05/02/2024] [Accepted: 05/10/2024] [Indexed: 06/07/2024]
Abstract
This roadmap reviews the new, highly interdisciplinary research field studying the behavior of condensed matter systems exposed to radiation. The Review highlights several recent advances in the field and provides a roadmap for the development of the field over the next decade. Condensed matter systems exposed to radiation can be inorganic, organic, or biological, finite or infinite, composed of different molecular species or materials, exist in different phases, and operate under different thermodynamic conditions. Many of the key phenomena related to the behavior of irradiated systems are very similar and can be understood based on the same fundamental theoretical principles and computational approaches. The multiscale nature of such phenomena requires the quantitative description of the radiation-induced effects occurring at different spatial and temporal scales, ranging from the atomic to the macroscopic, and the interlinks between such descriptions. The multiscale nature of the effects and the similarity of their manifestation in systems of different origins necessarily bring together different disciplines, such as physics, chemistry, biology, materials science, nanoscience, and biomedical research, demonstrating the numerous interlinks and commonalities between them. This research field is highly relevant to many novel and emerging technologies and medical applications.
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Affiliation(s)
| | | | - Nigel J. Mason
- School
of Physics and Astronomy, University of
Kent, Canterbury CT2 7NH, United
Kingdom
| | - Richard A. Amos
- Department
of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, U.K.
| | - Ilko Bald
- Institute
of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
| | - Gérard Baldacchino
- Université
Paris-Saclay, CEA, LIDYL, 91191 Gif-sur-Yvette, France
- CY Cergy Paris Université,
CEA, LIDYL, 91191 Gif-sur-Yvette, France
| | - Brendan Dromey
- Centre
for Light Matter Interactions, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, United Kingdom
| | - Martin Falk
- Institute
of Biophysics of the Czech Academy of Sciences, Královopolská 135, 61200 Brno, Czech Republic
- Kirchhoff-Institute
for Physics, Heidelberg University, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany
| | - Juraj Fedor
- J.
Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 3, 18223 Prague, Czech Republic
| | - Luca Gerhards
- Institute
of Physics, Carl von Ossietzky University, Carl-von-Ossietzky-Str. 9-11, 26129 Oldenburg, Germany
| | - Michael Hausmann
- Kirchhoff-Institute
for Physics, Heidelberg University, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany
| | - Georg Hildenbrand
- Kirchhoff-Institute
for Physics, Heidelberg University, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany
- Faculty
of Engineering, University of Applied Sciences
Aschaffenburg, Würzburger
Str. 45, 63743 Aschaffenburg, Germany
| | | | - Stanislav Kadlec
- Eaton European
Innovation Center, Bořivojova
2380, 25263 Roztoky, Czech Republic
| | - Jaroslav Kočišek
- J.
Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 3, 18223 Prague, Czech Republic
| | - Franck Lépine
- Université
Claude Bernard Lyon 1, CNRS, Institut Lumière
Matière, F-69622, Villeurbanne, France
| | - Siyi Ming
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Andrew Nisbet
- Department
of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, U.K.
| | - Kate Ricketts
- Department
of Targeted Intervention, University College
London, Gower Street, London WC1E 6BT, United Kingdom
| | - Leo Sala
- J.
Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 3, 18223 Prague, Czech Republic
| | - Thomas Schlathölter
- Zernike
Institute for Advanced Materials, University
of Groningen, Nijenborgh
4, 9747 AG Groningen, The Netherlands
- University
College Groningen, University of Groningen, Hoendiepskade 23/24, 9718 BG Groningen, The Netherlands
| | - Andrew E. H. Wheatley
- Yusuf
Hamied Department of Chemistry, University
of Cambridge, Lensfield
Road, Cambridge CB2 1EW, United Kingdom
| | - Ilia A. Solov’yov
- Institute
of Physics, Carl von Ossietzky University, Carl-von-Ossietzky-Str. 9-11, 26129 Oldenburg, Germany
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2
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Xian RP, Brunet J, Huang Y, Wagner WL, Lee PD, Tafforeau P, Walsh CL. A closer look at high-energy X-ray-induced bubble formation during soft tissue imaging. JOURNAL OF SYNCHROTRON RADIATION 2024; 31:566-577. [PMID: 38682274 DOI: 10.1107/s160057752400290x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 04/02/2024] [Indexed: 05/01/2024]
Abstract
Improving the scalability of tissue imaging throughput with bright, coherent X-rays requires identifying and mitigating artifacts resulting from the interactions between X-rays and matter. At synchrotron sources, long-term imaging of soft tissues in solution can result in gas bubble formation or cavitation, which dramatically compromises image quality and integrity of the samples. By combining in-line phase-contrast imaging with gas chromatography in real time, we were able to track the onset and evolution of high-energy X-ray-induced gas bubbles in ethanol-embedded soft tissue samples for tens of minutes (two to three times the typical scan times). We demonstrate quantitatively that vacuum degassing of the sample during preparation can significantly delay bubble formation, offering up to a twofold improvement in dose tolerance, depending on the tissue type. However, once nucleated, bubble growth is faster in degassed than undegassed samples, indicating their distinct metastable states at bubble onset. Gas chromatography analysis shows increased solvent vaporization concurrent with bubble formation, yet the quantities of dissolved gasses remain unchanged. By coupling features extracted from the radiographs with computational analysis of bubble characteristics, we uncover dose-controlled kinetics and nucleation site-specific growth. These hallmark signatures provide quantitative constraints on the driving mechanisms of bubble formation and growth. Overall, the observations highlight bubble formation as a critical yet often overlooked hurdle in upscaling X-ray imaging for biological tissues and soft materials and we offer an empirical foundation for their understanding and imaging protocol optimization. More importantly, our approaches establish a top-down scheme to decipher the complex, multiscale radiation-matter interactions in these applications.
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Affiliation(s)
- R Patrick Xian
- Department of Mechanical Engineering, University College London, London, United Kingdom
| | - Joseph Brunet
- Department of Mechanical Engineering, University College London, London, United Kingdom
| | - Yuze Huang
- Department of Mechanical Engineering, University College London, London, United Kingdom
| | - Willi L Wagner
- Department of Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Peter D Lee
- Department of Mechanical Engineering, University College London, London, United Kingdom
| | - Paul Tafforeau
- European Synchrotron Radiation Facility, Grenoble, France
| | - Claire L Walsh
- Department of Mechanical Engineering, University College London, London, United Kingdom
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3
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Zhou Z, Chu Y, Hou Z, Zhou X, Cao Y. Modification of Frictional Properties of Hydrogel Surface via Laser Ablated Topographical Micro-Textures. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4103. [PMID: 36432390 PMCID: PMC9696626 DOI: 10.3390/nano12224103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/10/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Hydrogels and biological cartilage tissues are highly similar in structure and composition due to their unique characteristics such as high-water content and low friction coefficients. The introduction of hydrogel cartilage can effectively reduce the friction coefficient and wear coefficient of the original bone joint and the implanted metal bone joint (generally titanium alloy or stainless steel), which is considered as a perfect replacement material for artificial articular cartilage. How to accurately regulate the local tribological characteristics of hydrogel artificial cartilage according to patient weight and bone shape is one of the important challenges in the current clinical application field of medical hydrogels. In this study, the mechanism by which micro-pits improve the surface friction properties was studied. Ultraviolet lasers were used to efficiently construct micro-pits with different shapes on a polyvinyl alcohol hydrogel in one step. It was shown that by using such a maskless laser processing, the performance of each part of the artificial cartilage can be customized flexibly and effectively. We envision that the approach demonstrated in this article will provide an important idea for the development of a high-performance, continuous and accurate method for controlling surface friction properties of artificial cartilage.
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Affiliation(s)
- Zhuangzhuang Zhou
- International Science and Technology Cooperation Base for Laser Processing Robot, Zhejiang Provincial Key Laboratory of Laser Processing Robot, Wenzhou University, Wenzhou 325035, China
| | - Yihang Chu
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Zhishan Hou
- International Science and Technology Cooperation Base for Laser Processing Robot, Zhejiang Provincial Key Laboratory of Laser Processing Robot, Wenzhou University, Wenzhou 325035, China
| | - Xiaopeng Zhou
- International Science and Technology Cooperation Base for Laser Processing Robot, Zhejiang Provincial Key Laboratory of Laser Processing Robot, Wenzhou University, Wenzhou 325035, China
- School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yu Cao
- International Science and Technology Cooperation Base for Laser Processing Robot, Zhejiang Provincial Key Laboratory of Laser Processing Robot, Wenzhou University, Wenzhou 325035, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou University, Wenzhou 325000, China
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Chen HH, Yang SM, Yang KE, Chiu CY, Chang CJ, Wang YS, Lee TT, Huang YF, Chen YY, Petibois C, Chang SH, Cai X, Low CM, Tan FCK, Teo A, Tok ES, Lim JH, Je JH, Kohmura Y, Ishikawa T, Margaritondo G, Hwu Y. High-resolution fast-tomography brain-imaging beamline at the Taiwan Photon Source. JOURNAL OF SYNCHROTRON RADIATION 2021; 28:1662-1668. [PMID: 34475313 DOI: 10.1107/s1600577521007633] [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: 06/07/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
The new Brain Imaging Beamline (BIB) of the Taiwan Photon Source (TPS) has been commissioned and opened to users. The BIB and in particular its endstation are designed to take advantage of bright unmonochromatized synchrotron X-rays and target fast 3D imaging, ∼1 ms exposure time plus very high ∼0.3 µm spatial resolution. A critical step in achieving the planned performances was the solution to the X-ray induced damaging problems of the detection system. High-energy photons were identified as their principal cause and were solved by combining tailored filters/attenuators and a high-energy cut-off mirror. This enabled the tomography acquisition throughput to reach >1 mm3 min-1, a critical performance for large-animal brain mapping and a vital mission of the beamline.
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Affiliation(s)
- Hsiang Hsin Chen
- Institute of Physics, Academia Sinica, 128 Academia Road Sec. 2, Taipei 11529, Taiwan
| | - Shun Min Yang
- Institute of Physics, Academia Sinica, 128 Academia Road Sec. 2, Taipei 11529, Taiwan
| | - Kai En Yang
- Institute of Physics, Academia Sinica, 128 Academia Road Sec. 2, Taipei 11529, Taiwan
| | - Ching Yu Chiu
- Institute of Physics, Academia Sinica, 128 Academia Road Sec. 2, Taipei 11529, Taiwan
| | - Chia Ju Chang
- Institute of Physics, Academia Sinica, 128 Academia Road Sec. 2, Taipei 11529, Taiwan
| | - Ya Sian Wang
- Institute of Physics, Academia Sinica, 128 Academia Road Sec. 2, Taipei 11529, Taiwan
| | - Tsung Tse Lee
- Institute of Physics, Academia Sinica, 128 Academia Road Sec. 2, Taipei 11529, Taiwan
| | - Yu Fen Huang
- Institute of Physics, Academia Sinica, 128 Academia Road Sec. 2, Taipei 11529, Taiwan
| | - Yi Yun Chen
- Institute of Physics, Academia Sinica, 128 Academia Road Sec. 2, Taipei 11529, Taiwan
| | - Cyril Petibois
- Institute of Physics, Academia Sinica, 128 Academia Road Sec. 2, Taipei 11529, Taiwan
| | - Shih Hung Chang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Xiaoqing Cai
- Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai, People's Republic of China
| | - Chian Ming Low
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Francis Chee Kuan Tan
- Department of Anaesthesia, National University Hospital, National University Health System, Singapore
| | - Alvin Teo
- School of Chemical and Life Sciences, Nanyang Polytechnic, Singapore
| | - Eng Soon Tok
- eMaGIC-Lab, Department of Physics, National University of Singapore, Singapore
| | - Jae Hong Lim
- Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang, Gyeongbuk 37673, South Korea
| | - Jun Ho Je
- Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang, Gyeongbuk 37673, South Korea
| | | | | | - Giorgio Margaritondo
- Faculté des Sciences de Base, Ecole Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland
| | - Yeukuang Hwu
- Institute of Physics, Academia Sinica, 128 Academia Road Sec. 2, Taipei 11529, Taiwan
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5
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Lee SH, Harth K, Rump M, Kim M, Lohse D, Fezzaa K, Je JH. Drop impact on hot plates: contact times, lift-off and the lamella rupture. SOFT MATTER 2020; 16:7935-7949. [PMID: 32761034 DOI: 10.1039/d0sm00459f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
When a liquid drop impacts on a heated substrate, it can remain deposited, or violently boil in contact, or lift off with or without ever touching the surface. The latter is known as the Leidenfrost effect. The duration and area of the liquid-substrate contact are highly relevant for the heat transfer, as well as other effects such as corrosion. However, most experimental studies rely on side view imaging to determine contact times, and those are often mixed with the time until the drop lifts off from the substrate. Here, we develop and validate a reliable method of contact time determination using high-speed X-ray imaging and total internal reflection imaging. We exemplarily compare contact and lift-off times on flat silicon and sapphire substrates. We show that drops can rebound even without formation of a complete vapor layer, with a wide range of lift-off times. On sapphire, we find a local minimum of lift-off times that is much shorter than expected from capillary rebound in the comparatively low-temperature regime of transition boiling/thermal atomization. We elucidate the underlying mechanism related to spontaneous rupture of the lamella and receding of the contact area.
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Affiliation(s)
- Sang-Hyeon Lee
- X-ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea.
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6
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Hermann G, Zhang Y, Wassermann B, Fischer H, Quennet M, Rühl E. Charge Effects on the Efflorescence in Single Levitated Droplets. J Phys Chem A 2017; 121:6790-6799. [DOI: 10.1021/acs.jpca.7b05760] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gunter Hermann
- Physical Chemistry, Institute
of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Yan Zhang
- Physical Chemistry, Institute
of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Bernhard Wassermann
- Physical Chemistry, Institute
of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Henry Fischer
- Physical Chemistry, Institute
of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Marcel Quennet
- Physical Chemistry, Institute
of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
| | - Eckart Rühl
- Physical Chemistry, Institute
of Chemistry and Biochemistry, Freie Universität Berlin, Takustr. 3, 14195 Berlin, Germany
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7
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Argunova TS, Kohn VG, Lim JH, Je JH. Study of a macrodefect in a silicon carbid single crystal by means of X-ray phase contrast. CRYSTALLOGR REP+ 2016. [DOI: 10.1134/s1063774516040027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Ryu J, Hwang BG, Lee SJ. In vivo dynamic analysis of water refilling in embolized xylem vessels of intact Zea mays leaves. ANNALS OF BOTANY 2016; 118:1033-1042. [PMID: 27539601 PMCID: PMC5055824 DOI: 10.1093/aob/mcw145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/12/2016] [Accepted: 05/24/2016] [Indexed: 05/11/2023]
Abstract
Background and Aims The refilling of embolized xylem vessels under tension is a major issue in water transport among vascular plants. However, xylem embolism and refilling remain poorly understood because of technical limitations. Direct observation of embolism repair in intact plants is essential to understand the biophysical aspects of water refilling in embolized xylem vessels. This paper reports on details of the water refilling process in leaves of the intact herbaceous monocot plant Zea mays and its refilling kinetics obtained by a direct visualization technique. Methods A synchrotron X-ray micro-imaging technique was used to monitor water refilling in embolized xylem vessels of intact maize leaves. Xylem embolism was artificially induced by using a glass capillary; real-time images of water refilling dynamics were consecutively captured at a frame rate of 50 f.p.s. Key Results Water supply in the radial direction initiates droplet formation on the wall of embolized xylem vessels. Each droplet grows into a water column; this phenomenon shows translation motion or continuous increase in water column volume. In some instances, water columns merge and form one large water column. Water refilling in the radial direction causes rapid recovery from embolism in several minutes. The average water refilling velocity is approx. 1 μm s-1. Conclusions Non-destructive visualization of embolized xylem vessels demonstrates rapid water refilling and gas bubble removal as key elements of embolism repair in a herbaceous monocot species. The refilling kinetics provides new insights into the dynamic mechanism of water refilling phenomena.
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Affiliation(s)
- Jeongeun Ryu
- Department of Mechanical EngineeringPohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 790-784, Republic of Korea
- Center for Biofluid and Biomimic Research, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 790-784, Republic of Korea
| | - Bae Geun Hwang
- Department of Mechanical EngineeringPohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 790-784, Republic of Korea
- Center for Biofluid and Biomimic Research, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 790-784, Republic of Korea
| | - Sang Joon Lee
- Department of Mechanical EngineeringPohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 790-784, Republic of Korea
- Center for Biofluid and Biomimic Research, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk 790-784, Republic of Korea
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9
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Bulavin LA, Cherevko KV, Gavryushenko DA, Sysoev VM, Vlasenko TS. Radiation influence on the temperature-dependent parameters of fluids. Phys Rev E 2016; 93:032133. [PMID: 27078318 DOI: 10.1103/physreve.93.032133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Indexed: 06/05/2023]
Abstract
Based on the fundamental Bogolyubov chain of equations, a model relating the structural and thermophysical properties of the nonequilibrium liquid systems under irradiation in stationary state is introduced. The obtained results suggest that the thermophysical properties of the liquid systems under irradiation are defined by the "effective temperature" that can be calculated from the perturbed momentum distribution functions of the systems. It is shown that the structural changes in the liquid systems under irradiation are caused by the changes in the coefficients of the Maxwell distribution function due to the momentum exchange between the active particles and the particles forming the liquid. To confirm the theoretical predictions, a qualitative comparison of the model with the existing experimental data on irradiation influence on the surface tension coefficients of liquids is performed.
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Affiliation(s)
- L A Bulavin
- Physics Faculty, Taras Shevchenko National University of Kyiv, 4 Glushkova Av., Kyiv 03022, Ukraine
| | - K V Cherevko
- Physics Faculty, Taras Shevchenko National University of Kyiv, 4 Glushkova Av., Kyiv 03022, Ukraine
| | - D A Gavryushenko
- Physics Faculty, Taras Shevchenko National University of Kyiv, 4 Glushkova Av., Kyiv 03022, Ukraine
| | - V M Sysoev
- Physics Faculty, Taras Shevchenko National University of Kyiv, 4 Glushkova Av., Kyiv 03022, Ukraine
| | - T S Vlasenko
- Institute for Safety Problems of Nuclear Power Plants, National Academy of Sciences of Ukraine, 12 Lysogirska St., Kyiv 03028, Ukraine
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Vlasenko TS, Bulavin LA, Sysoev VM. The heavy ion irradiation influence on the thermodynamic parameters of liquids in human body. Biophysics (Nagoya-shi) 2014. [DOI: 10.1134/s0006350914030270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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11
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Zhang L, Zhao B, Xue L, Guo Z, Dong Y, Fang H, Tai R, Hu J. Imaging interfacial micro- and nano-bubbles by scanning transmission soft X-ray microscopy. JOURNAL OF SYNCHROTRON RADIATION 2013; 20:413-8. [PMID: 23592619 DOI: 10.1107/s0909049513003671] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Accepted: 02/05/2013] [Indexed: 05/26/2023]
Abstract
Synchrotron-based scanning transmission soft X-ray microscopy (STXM) with nanometer resolution was used to investigate the existence and behavior of interfacial gas nanobubbles confined between two silicon nitride windows. The observed nanobubbles of SF6 and Ne with diameters smaller than 2.5 µm were quite stable. However, larger bubbles became unstable and grew during the soft X-ray imaging, indicating that stable nanobubbles may have a length scale, which is consistent with a previous report using atomic force microscopy [Zhang et al. (2010), Soft Matter, 6, 4515-4519]. Here, it is shown that STXM is a promising technique for studying the aggregation of gases near the solid/water interfaces at the nanometer scale.
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Affiliation(s)
- Lijuan Zhang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, People's Republic of China.
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13
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Lee JS, Weon BM, Je JH, Fezzaa K. How does an air film evolve into a bubble during drop impact? PHYSICAL REVIEW LETTERS 2012; 109:204501. [PMID: 23215492 DOI: 10.1103/physrevlett.109.204501] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Revised: 09/14/2012] [Indexed: 06/01/2023]
Abstract
When a liquid drop impacts a solid surface, air is generally entrapped underneath. Using ultrafast x-ray phase-contrast imaging, we directly visualized the profile of an entrapped air film and its evolution into a bubble during drop impact. We identified a complicated evolution process that consists of three stages: inertial retraction of the air film, contraction of the top air surface into a bubble, and pinch-off of a daughter droplet inside the bubble. Energy transfer during retraction drives the contraction and pinch-off of a daughter droplet. The wettability of the solid surface affects the detachment of the bubble, suggesting a method for bubble elimination in many drop-impact applications.
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Affiliation(s)
- Ji San Lee
- X-ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784, Korea
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14
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Weon BM, Lee JS, Je JH, Fezzaa K. X-ray-induced water vaporization. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2011; 84:032601. [PMID: 22060436 DOI: 10.1103/physreve.84.032601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Indexed: 05/31/2023]
Abstract
We present quantitative evidence for x-ray-induced water vaporization: water is vaporized at a rate of 5.5 pL/s with the 1-Å-wavelength x-ray irradiation of ~0.1 photons per Å(2); moreover, water vapor is reversibly condensed during pauses in irradiation. This result fundamentally suggests that photoionization induces vaporization. This phenomenon is attributed to surface-tension reduction by ionization and would be universally important in radiological and electrohydrodynamic situations.
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Affiliation(s)
- B M Weon
- X-ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, San 31, Pohang 790-784, South Korea.
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15
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Weon BM, Kim JT, Je JH, Yi JM, Wang S, Lee WK. Colloid coalescence with focused x rays. PHYSICAL REVIEW LETTERS 2011; 107:018301. [PMID: 21797577 DOI: 10.1103/physrevlett.107.018301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2010] [Revised: 02/17/2011] [Indexed: 05/31/2023]
Abstract
We show direct evidence that focused x rays enable us to merge polymer colloidal particles at room temperature. This phenomenon is ascribed to the photochemical scission of colloids with x rays, reducing the molecular weight, glass transition temperature, surface tension, and viscosity of colloids. The observation of the neck bridge growth with time shows that the x-ray-induced colloid coalescence is analogous to viscoelastic coalescence. This finding suggests a feasible protocol of photonic nanofabrication by sintering or welding of polymers, without thermal damage, using x-ray photonics.
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Affiliation(s)
- B M Weon
- X-ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, Korea.
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Lee JS, Weon BM, Park SJ, Je JH, Fezzaa K, Lee WK. Size limits the formation of liquid jets during bubble bursting. Nat Commun 2011; 2:367. [PMID: 21694715 PMCID: PMC3156824 DOI: 10.1038/ncomms1369] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Accepted: 05/25/2011] [Indexed: 11/30/2022] Open
Abstract
A bubble reaching an air–liquid interface usually bursts and forms a liquid jet. Jetting is relevant to climate and health as it is a source of aerosol droplets from breaking waves. Jetting has been observed for large bubbles with radii of R≫100 μm. However, few studies have been devoted to small bubbles (R<100 μm) despite the entrainment of a large number of such bubbles in sea water. Here we show that jet formation is inhibited by bubble size; a jet is not formed during bursting for bubbles smaller than a critical size. Using ultrafast X-ray and optical imaging methods, we build a phase diagram for jetting and the absence of jetting. Our results demonstrate that jetting in bubble bursting is analogous to pinching-off in liquid coalescence. The coalescence mechanism for bubble bursting may be useful in preventing jet formation in industry and improving climate models concerning aerosol production. A bubble at an air–liquid interface can form a liquid jet upon bursting, spraying aerosol droplets into the air. Lee et al. show that jetting is analogous to pinching-off in liquid coalescence, which may be useful in applications that prevent jet formation and in the improved incorporation of aerosols in climate models.
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Affiliation(s)
- Ji San Lee
- X-ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784, Korea
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Weon BM, Je JH. Capillary force repels coffee-ring effect. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2010; 82:015305. [PMID: 20866682 DOI: 10.1103/physreve.82.015305] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2010] [Revised: 05/19/2010] [Indexed: 05/13/2023]
Abstract
When a coffee drop dries on a solid surface, it leaves a ringlike deposit along the edge and this is known as the "coffee-ring effect." We find a different motion of particles repelling the coffee-ring effect in drying droplets; the motion of particles that is initially toward the edge by the coffee-ring effect is reversed toward the center by a capillary force. The reversal takes place when the capillary force prevails over the outward coffee-ring flow. We discuss the geometric constraints for the capillary force and the reverse motion. Our findings of reversal phenomena would be important in many scenarios of drying colloidal fluids.
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Affiliation(s)
- Byung Mook Weon
- Department of Physics, School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.
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Weonâ BM, Kwon YB, Won KH, Yoo J, Je JH, Li M, Hahn JH. Ablation and Deposition of Poly(dimethylsiloxane) with X-Rays. Chemphyschem 2010; 11:115-8. [DOI: 10.1002/cphc.200900841] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Yoon BJ. Comment on "Decreased surface tension of water by hard-x-ray irradiation". PHYSICAL REVIEW LETTERS 2009; 102:179701-179702. [PMID: 19518843 DOI: 10.1103/physrevlett.102.179701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2008] [Indexed: 05/27/2023]
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Kwon YB, Weon BM, Won KH, Je JH, Hwu Y, Margaritondo G. X-ray-induced changes in wettability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:1927-1929. [PMID: 19140720 DOI: 10.1021/la804081k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We observed that hard X-ray irradiation modifies the wettability of a variety of inorganic materials. The smooth surfaces of all tested inorganic materials (ZnO, p-Si, Al2O3, SrTiO3, TiN, ZnS, CuO, Ag2O, and Cr2O3) change during irradiation to a state of superhydrophilic wettability, and such changes are explained by the accumulation of positive surface charges by photoelectron emission. The initial wettability state is re-established within several minutes of storage in deionized water.
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Affiliation(s)
- Yong Bum Kwon
- X-ray Imaging Center, Department of Materials Science and Engineering, Pohang University of Science and Technology, Pohang, South Korea
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