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Que R, Audibert JF, Garcia-Caurel E, Plantevin O, Kalli K, Lancry M, Poumellec B, Pansu RB. Carbon Dot Synthesis in CYTOP Optical Fiber Using IR Femtosecond Laser Direct Writing and Its Luminescence Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:941. [PMID: 38869566 PMCID: PMC11173491 DOI: 10.3390/nano14110941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 05/09/2024] [Accepted: 05/22/2024] [Indexed: 06/14/2024]
Abstract
Luminescent carbon dots (CDs) were locally synthesized in the core of CYTOP fibers using IR femtosecond laser direct writing (FLDW), a one-step simple method serving as a post-treatment of the pristine fiber. This approach enables the creation of several types of modifications such as ellipsoid voids. The CDs and photoluminescence (PL) distribute at the periphery of the voids. The PL spectral properties were studied through the excitation/emission matrix in the visible range and excitation/emission spectra in the UV/visible range. Our findings reveal the presence of at least three distinct luminescent species, facilitating a broad excitation range extending from UV to green, and light emission spanning from blue to red. The average laser power and dose influence the quantity and ratio of these luminescent CD species. Additionally, we measured the spatially resolved lifetime of the luminescence during and after the irradiation. We found longer lifetimes at the periphery of the laser-induced modified regions and shorter ones closer to the center, with a dominant lifetime ~2 ns. Notably, unlike many other luminophores, these laser-induced CDs are insensitive to oxygen, enhancing their potential for display or data storage applications.
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Affiliation(s)
- Ruyue Que
- CNRS, ENS Paris-Saclay, CentraleSupélec, LuMIn, Université Paris-Saclay, 91190 Gif-sur-Yvette, France; (R.Q.); (J.-F.A.); (R.B.P.)
| | - Jean-Frédéric Audibert
- CNRS, ENS Paris-Saclay, CentraleSupélec, LuMIn, Université Paris-Saclay, 91190 Gif-sur-Yvette, France; (R.Q.); (J.-F.A.); (R.B.P.)
| | - Enrique Garcia-Caurel
- Institut Polytechnique de Paris, CNRS, École Polytechnique, LPICM, 91120 Palaiseau, France;
| | - Olivier Plantevin
- Laboratoire de Physique des Solides, CNRS, Université Paris-Saclay, 91405 Orsay, France;
| | - Kyriacos Kalli
- Nanophotonics Research Laboratory, Cyprus University of Technology, 3036 Limassol, Cyprus
| | - Matthieu Lancry
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, CNRS, Université Paris-Saclay, 91405 Orsay, France;
| | - Bertrand Poumellec
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, CNRS, Université Paris-Saclay, 91405 Orsay, France;
| | - Robert B. Pansu
- CNRS, ENS Paris-Saclay, CentraleSupélec, LuMIn, Université Paris-Saclay, 91190 Gif-sur-Yvette, France; (R.Q.); (J.-F.A.); (R.B.P.)
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Hayat Z, El Abed A. First Experimental Evidence of Anti-Stokes Laser-Induced Fluorescence Emission in Microdroplets and Microfluidic Systems Driven by Low Thermal Conductivity of Fluorocarbon Carrier Oil. MICROMACHINES 2023; 14:765. [PMID: 37420997 DOI: 10.3390/mi14040765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 07/09/2023]
Abstract
With the advent of many optofluidic and droplet microfluidic applications using laser-induced fluorescence (LIF), the need for a better understanding of the heating effect induced by pump laser excitation sources and good monitoring of temperature inside such confined microsystems started to emerge. We developed a broadband highly sensitive optofluidic detection system, which enabled us to show for the first time that Rhodamine-B dye molecules can exhibit standard photoluminescence as well as blue-shifted photoluminescence. We demonstrate that this phenomenon originates from the interaction between the pump laser beam and dye molecules when surrounded by the low thermal conductive fluorocarbon oil, generally used as a carrier medium in droplet microfluidics. We also show that when the temperature is increased, both Stokes and anti-Stokes fluorescence intensities remain practically constant until a temperature transition is reached, above which the fluorescence intensity starts to decrease linearly with a thermal sensitivity of about -0.4%/°C for Stokes emission or -0.2%/°C for anti-Stokes emission. For an excitation power of 3.5 mW, the temperature transition was found to be about 25 °C, whereas for a smaller excitation power (0.5 mW), the transition temperature was found to be about 36 °C.
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Affiliation(s)
- Zain Hayat
- Laboratoire Lumière Matière et Interfaces (LUMIN), UMR 9024, Ecole Normale Supérieure Paris Saclay, CentraleSupélec, CNRS, Université Paris-Saclay, 4 Avenue des Sciences, 91190 Gif-sur-Yvette, France
| | - Abdel El Abed
- Laboratoire Lumière Matière et Interfaces (LUMIN), UMR 9024, Ecole Normale Supérieure Paris Saclay, CentraleSupélec, CNRS, Université Paris-Saclay, 4 Avenue des Sciences, 91190 Gif-sur-Yvette, France
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Liao YY, Melissen ST, Audibert JF, Vu TT, Clavier G, Méallet-Renault R, Retailleau P, Lemaistre JP, Génot V, Pansu R. Fluorescence Spectroscopy of AdamBODIPY Single Crystals. CHEMPHOTOCHEM 2017. [DOI: 10.1002/cptc.201700173] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yuan-Yuan Liao
- Laboratoire PPSM ENS Cachan; CNRS, UMR 8531 & Institut d'Alembert IFR 121; 61, avenue du Président Wilson 94235 Cachan CEDEX France
- LIONS/NIMBE, CEA-CNRS, UMR 3685; Université Paris-Saclay; 91191 Gif-sur-Yvette CEDEX France
| | - Sigismund T.A.G. Melissen
- Université de Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, CNRS; 46 allée d'Italie 69007 Lyon CEDEX France
| | - Jean-Frédéric Audibert
- Laboratoire PPSM ENS Cachan; CNRS, UMR 8531 & Institut d'Alembert IFR 121; 61, avenue du Président Wilson 94235 Cachan CEDEX France
| | - Thanh-Truc Vu
- Laboratoire PPSM ENS Cachan; CNRS, UMR 8531 & Institut d'Alembert IFR 121; 61, avenue du Président Wilson 94235 Cachan CEDEX France
| | - Gilles Clavier
- Laboratoire PPSM ENS Cachan; CNRS, UMR 8531 & Institut d'Alembert IFR 121; 61, avenue du Président Wilson 94235 Cachan CEDEX France
| | - Rachel Méallet-Renault
- Laboratoire PPSM ENS Cachan; CNRS, UMR 8531 & Institut d'Alembert IFR 121; 61, avenue du Président Wilson 94235 Cachan CEDEX France
| | - Pascal Retailleau
- Centre de Recherche de Gif; Institut de Chimie des Substances Naturelles, CNRS, UPR 2301 Bâtiment 18; 1 avenue de la Terrasse 91198 Gif-sur-Yvette CEDEX France
| | - Jean-Pierre Lemaistre
- Laboratoire des Milieux Désordonnés et Hétérogènes, CNRS, UMR 7603; Université P. et M. Curie; Tour 22 4, Place Jussieu 75252 Paris CEDEX 05 France
| | - Valérie Génot
- Laboratoire PPSM ENS Cachan; CNRS, UMR 8531 & Institut d'Alembert IFR 121; 61, avenue du Président Wilson 94235 Cachan CEDEX France
| | - Robert Pansu
- Laboratoire PPSM ENS Cachan; CNRS, UMR 8531 & Institut d'Alembert IFR 121; 61, avenue du Président Wilson 94235 Cachan CEDEX France
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Caron T, Pasquinet E, van der Lee A, Pansu RB, Rouessac V, Clavaguera S, Bouhadid M, Serein-Spirau F, Lère-Porte JP, Montméat P. Efficient Sensing of Explosives by Using Fluorescent Nonporous Films of Oligophenyleneethynylene Derivatives Thanks to Optimal Structure Orientation and Exciton Migration. Chemistry 2014; 20:15069-76. [DOI: 10.1002/chem.201402271] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 07/02/2014] [Indexed: 11/08/2022]
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Han JH, Kang JU. Effect of multimodal coupling in imaging micro-endoscopic fiber bundle on optical coherence tomography. APPLIED PHYSICS. B, LASERS AND OPTICS 2012; 106:635-643. [PMID: 22379285 PMCID: PMC3286611 DOI: 10.1007/s00340-011-4847-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The effect of higher order modes in fiber bundle imager-based optical coherence tomography (OCT) has been theoretically modeled using coupled fiber mode analysis ignoring the polarization and core size variation in order to visualize the pure effect of multimodal coupling of the imaging bundle. In this model, the optical imaging fiber couples several higher order modes in addition to the fundamental one due to its high numerical aperture for achieving light confinement to the single core pixel. Those modes become evident in a distance domain using A-mode (depth) OCT based on a mirror sample experiment where multiple peaks are generated by the spatial convolution and coherence function of the light source. The distance between the peaks corresponding to each mode can be estimated by considering the effective indices of coupled (guided) modes obtained from numerically solving the fiber mode characteristics equations and the fiber length. The results have been compared for various types (fiber dimensions and wavelengths) and lengths of fibers, which have mode separation of 715 μm (1404 μm) and 764 μm (1527 μm) for the measurement and analysis, respectively in a 152.5 mm (305 mm)-long imaging fiber.
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Affiliation(s)
- Jae-Ho Han
- Department of Brain and Cognitive Engineering, Korea University, 145, Anam-Ro, Sungbuk-Ku, Seoul, 136-701, South Korea
- , Fax: +82-2-926-2168, Phone: +82-2-3290-5927
| | - Jin U. Kang
- Department of Electrical and Computer Engineering, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
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Han JH, Yoon SM. Depixelation of coherent fiber bundle endoscopy based on learning patterns of image prior. OPTICS LETTERS 2011; 36:3212-3214. [PMID: 21847211 DOI: 10.1364/ol.36.003212] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We present an iterative method of eliminating pixelation artifacts from an endoscopic image acquired from a coherent fiber bundle imager. Our proposed approach for decoupling the honeycomb effect from the obtained sample image was formulated by using the prior probability for an approximate Bayesian framework in which the ideal complete image can be estimated by maximizing the posterior probability from the observed image. The maximization of the posterior probability from the original mask image (the mirrored fiber bundle imager structure) and the observed image (the sample image of the United States Air Force chart) has been performed by learning the image priors in the space of Markov random fields. By iteratively estimating the probability distribution, we reduced the noise effects from the mask image and recovered the ideal shape of the image. This method was efficient for automatically learning the sliding patch from the combination of projected kernels. The mask and observed images were obtained from en face images of the Fourier domain optical coherence tomography based on a common path interferometry scheme.
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Affiliation(s)
- Jae-Ho Han
- Department of Brain and Cognitive Engineering, Korea University, 5-1, Anam-Dong, Seoul, 136-713, South Korea.
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Calzaferri G, Méallet‐Renault R, Brühwiler D, Pansu R, Dolamic I, Dienel T, Adler P, Li H, Kunzmann A. Designing Dye–Nanochannel Antenna Hybrid Materials for Light Harvesting, Transport and Trapping. Chemphyschem 2011; 12:580-94. [DOI: 10.1002/cphc.201000947] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2010] [Indexed: 12/12/2022]
Affiliation(s)
- Gion Calzaferri
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH‐3012 Bern (Switzerland), Fax: (+41) 31 631 3994
| | - Rachel Méallet‐Renault
- PPSM, ENS Cachan, CNRS, UniverSud, 61 av President Wilson, F‐94230 Cachan (France), Fax: (+33) 147 402 454
| | - Dominik Brühwiler
- Institute of Inorganic Chemistry, University of Zürich, Winterthurerstrasse 190, CH‐8057 Zürich (Switzerland), Fax: (+41) 44 635 6802
| | - Robert Pansu
- PPSM, ENS Cachan, CNRS, UniverSud, 61 av President Wilson, F‐94230 Cachan (France), Fax: (+33) 147 402 454
| | - Igor Dolamic
- Institute of Inorganic Chemistry, University of Zürich, Winterthurerstrasse 190, CH‐8057 Zürich (Switzerland), Fax: (+41) 44 635 6802
| | - Thomas Dienel
- Institute of Inorganic Chemistry, University of Zürich, Winterthurerstrasse 190, CH‐8057 Zürich (Switzerland), Fax: (+41) 44 635 6802
| | - Pauline Adler
- PPSM, ENS Cachan, CNRS, UniverSud, 61 av President Wilson, F‐94230 Cachan (France), Fax: (+33) 147 402 454
| | - Huanrong Li
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130 (China), Fax: (+86) 222 656 4294
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Petrášek Z, Suhling K. Photon arrival timing with sub-camera exposure time resolution in wide-field time-resolved photon counting imaging. OPTICS EXPRESS 2010; 18:24888-901. [PMID: 21164834 DOI: 10.1364/oe.18.024888] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We demonstrate that an ultra-fast CMOS camera combined with a photon counting image intensifier can be used to determine photon arrival times well below the exposure time of the camera. We can obtain a time resolution down to around 1% of the exposure time, i.e. of the order of 40 ns with microsecond exposure times. This is achieved by exploiting the invariant phosphor decay of the image intensifier's phosphor screen: Developing a suitable mathematical framework, we show that the relative intensities of the phosphor decay in successive frames following the photon detection uniquely determine the photon arrival time. This approach opens a way to measuring fast luminescence decays in parallel in many pixels. Possible applications include oxygen and ion concentration imaging using probes with luminescence lifetimes in the range of 100 ns to microseconds.
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Affiliation(s)
- Zdeněk Petrášek
- Biotechnologisches Zentrum, Technische Universität Dresden, Tatzberg 47/49, 01307 Dresden, Germany.
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Han JH, Lee J, Kang JU. Pixelation effect removal from fiber bundle probe based optical coherence tomography imaging. OPTICS EXPRESS 2010; 18:7427-39. [PMID: 20389766 PMCID: PMC3359145 DOI: 10.1364/oe.18.007427] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Revised: 03/16/2010] [Accepted: 03/19/2010] [Indexed: 05/20/2023]
Abstract
A method of eliminating pixelization effect from en face optical coherence tomography (OCT) image when a fiber bundle is used as an OCT imaging probe is presented. We have demonstrated that applying a histogram equalization process before performing a weighted-averaged Gaussian smoothing filter to the original lower gray level intensity based image not only removes the structural artifact of the bundle but also enhances the image quality with minimum blurring of object's image features. The measured contrast-to-noise ratio (CNR) for an image of the US Air Force test target was 14.7dB (4.9dB), after (before) image processing. In addition, by performing the spatial frequency analysis based on two-dimensional discrete Fourier transform (2-D DFT), we were able to observe that the periodic intensity peaks induced by the regularly arrayed structure of the fiber bundle can be efficiently suppressed by 41.0dB for the first nearby side lobe as well as to obtain the precise physical spacing information of the fiber grid. The proposed combined method can also be used as a straight forward image processing tool for any imaging system utilizing fiber bundle as a high-resolution imager.
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Affiliation(s)
- Jae-Ho Han
- Department of Electrical and Computer Engineering, Johns Hopkins University 3400 N. Charles St., Baltimore, MD, USA.
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Kang JU, Han JH, Liu X, Zhang K. Common-Path Optical Coherence Tomography for Biomedical Imaging and Sensing. ACTA ACUST UNITED AC 2010; 14:1-13. [PMID: 20657808 DOI: 10.3807/josk.2010.14.1.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This paper describes a development of a fiber optic common-path optical coherence tomography (OCT) based imaging and guided system that possess ability to reliably identify optically transparent targets that are on the micron scale; ability to maintain a precise and safe position from the target; ability to provide spectroscopic imaging; ability to imaging biological target in 3-D. The system is based on a high resolution fiber optic Common-Path OCT (CP-OCT) that can be integrated into various mini-probes and tools. The system is capable of obtaining >70K A-scan per second with a resolution better than 3 μm. We have demonstrated that the system is capable of one-dimensional real-time depth tracking, tool motion limiting and motion compensation, oxygen-saturation level imaging, and high resolution 3-D images for various biomedical applications.
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Affiliation(s)
- Jin U Kang
- Department of Electrical and Computer Engineering, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218, USA
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Petrášek Z, Eckert HJ, Kemnitz K. Wide-field photon counting fluorescence lifetime imaging microscopy: application to photosynthesizing systems. PHOTOSYNTHESIS RESEARCH 2009; 102:157-168. [PMID: 19533411 DOI: 10.1007/s11120-009-9444-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2008] [Accepted: 05/19/2009] [Indexed: 05/27/2023]
Abstract
Fluorescence lifetime imaging microscopy (FLIM) is a technique that visualizes the excited state kinetics of fluorescence molecules with the spatial resolution of a fluorescence microscope. We present a scanningless implementation of FLIM based on a time- and spacecorrelated single photon counting (TSCSPC) method employing a position-sensitive quadrant anode detector and wide-field illumination. The standard time-correlated photon counting approach leads to picosecond temporal resolution, making it possible to resolve complex fluorescence decays. This allows parallel acquisition of time-resolved images of biological samples under minimally invasive low-excitation conditions (<10 mW/cm(2)). In this way unwanted photochemical reactions induced by high excitation intensities and distorting the decay kinetics are avoided. Comparably low excitation intensities are practically impossible to achieve with a conventional laser scanning microscope, where focusing of the excitation beam into a tight spot is required. Therefore, wide-field FLIM permits to study Photosystem II (PS II) in a way so far not possible with a laser scanning microscope. The potential of the wide-field TSCSPC method is demonstrated by presenting FLIM measurements of the fluorescence dynamics of photosynthetic systems in living cells of the chlorophyll d-containing cyanobacterium Acaryochloris marina.
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Affiliation(s)
- Zdeněk Petrášek
- Biophysics group, Biotechnologisches Zentrum, Technische Universität Dresden, Tatzberg 47-51, 01307 Dresden, Germany
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Schmidt E, Trofimov B, Mikhaleva A, Zorina N, Protzuk N, Petrushenko K, Ushakov I, Dvorko M, Méallet-Renault R, Clavier G, Vu T, Tran H, Pansu R. Synthesis and Optical Properties of 2-(Benzo[b]thiophene-3-yl)pyrroles and a New BODIPY Fluorophore (BODIPY=4,4-Difluoro-4-bora-3a,4a-diaza-s-indacene). Chemistry 2009; 15:5823-30. [DOI: 10.1002/chem.200802467] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Levitt JA, Matthews DR, Ameer-Beg SM, Suhling K. Fluorescence lifetime and polarization-resolved imaging in cell biology. Curr Opin Biotechnol 2009; 20:28-36. [DOI: 10.1016/j.copbio.2009.01.004] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2008] [Accepted: 01/23/2009] [Indexed: 10/21/2022]
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Miomandre F, Meallet-Renault R, Vachon JJ, Pansu RB, Audebert P. Fluorescence microscopy coupled to electrochemistry: a powerful tool for the controlled electrochemical switch of fluorescent molecules. Chem Commun (Camb) 2008:1913-5. [DOI: 10.1039/b718899d] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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