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Smith R, Morgan K, McCarron A, Cmielewski P, Reyne N, Parsons D, Donnelley M. Ultra-fast in vivodirectional dark-field x-ray imaging for visualising magnetic control of particles for airway gene delivery. Phys Med Biol 2024; 69:105025. [PMID: 38640914 DOI: 10.1088/1361-6560/ad40f5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 04/19/2024] [Indexed: 04/21/2024]
Abstract
Objective.Magnetic nanoparticles can be used as a targeted delivery vehicle for genetic therapies. Understanding how they can be manipulated within the complex environment of live airways is key to their application to cystic fibrosis and other respiratory diseases.Approach.Dark-field x-ray imaging provides sensitivity to scattering information, and allows the presence of structures smaller than the detector pixel size to be detected. In this study, ultra-fast directional dark-field synchrotron x-ray imaging was utlilised to understand how magnetic nanoparticles move within a live, anaesthetised, rat airway under the influence of static and moving magnetic fields.Main results.Magnetic nanoparticles emerging from an indwelling tracheal cannula were detectable during delivery, with dark-field imaging increasing the signal-to-noise ratio of this event by 3.5 times compared to the x-ray transmission signal. Particle movement as well as particle retention was evident. Dynamic magnetic fields could manipulate the magnetic particlesin situ. Significance.This is the first evidence of the effectiveness ofin vivodark-field imaging operating at these spatial and temporal resolutions, used to detect magnetic nanoparticles. These findings provide the basis for further development toward the effective use of magnetic nanoparticles, and advance their potential as an effective delivery vehicle for genetic agents in the airways of live organisms.
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Affiliation(s)
- Ronan Smith
- Adelaide Medical School, University of Adelaide, North Terrace, Adelaide, Australia
- Women's and Children's Hospital, King William Road, Adelaide, Australia
- Robinson Research Institute, University of Adelaide, King William Road, Adelaide, Australia
| | - Kaye Morgan
- Department of Physics, Monash University, Wellington Road, Melbourne, Australia
| | - Alexandra McCarron
- Adelaide Medical School, University of Adelaide, North Terrace, Adelaide, Australia
- Women's and Children's Hospital, King William Road, Adelaide, Australia
- Robinson Research Institute, University of Adelaide, King William Road, Adelaide, Australia
| | - Patricia Cmielewski
- Adelaide Medical School, University of Adelaide, North Terrace, Adelaide, Australia
- Women's and Children's Hospital, King William Road, Adelaide, Australia
- Robinson Research Institute, University of Adelaide, King William Road, Adelaide, Australia
| | - Nicole Reyne
- Adelaide Medical School, University of Adelaide, North Terrace, Adelaide, Australia
- Women's and Children's Hospital, King William Road, Adelaide, Australia
- Robinson Research Institute, University of Adelaide, King William Road, Adelaide, Australia
| | - David Parsons
- Adelaide Medical School, University of Adelaide, North Terrace, Adelaide, Australia
- Women's and Children's Hospital, King William Road, Adelaide, Australia
- Robinson Research Institute, University of Adelaide, King William Road, Adelaide, Australia
| | - Martin Donnelley
- Adelaide Medical School, University of Adelaide, North Terrace, Adelaide, Australia
- Women's and Children's Hospital, King William Road, Adelaide, Australia
- Robinson Research Institute, University of Adelaide, King William Road, Adelaide, Australia
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Doherty A, Fourmaux S, Astolfo A, Ziesche R, Wood J, Finlay O, Stolp W, Batey D, Manke I, Légaré F, Boone M, Symes D, Najmudin Z, Endrizzi M, Olivo A, Cipiccia S. Femtosecond multimodal imaging with a laser-driven X-ray source. COMMUNICATIONS PHYSICS 2023; 6:288. [PMID: 38665412 PMCID: PMC11041725 DOI: 10.1038/s42005-023-01412-9] [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: 06/05/2023] [Accepted: 10/04/2023] [Indexed: 04/28/2024]
Abstract
Laser-plasma accelerators are compact linear accelerators based on the interaction of high-power lasers with plasma to form accelerating structures up to 1000 times smaller than standard radiofrequency cavities, and they come with an embedded X-ray source, namely betatron source, with unique properties: small source size and femtosecond pulse duration. A still unexplored possibility to exploit the betatron source comes from combining it with imaging methods able to encode multiple information like transmission and phase into a single-shot acquisition approach. In this work, we combine edge illumination-beam tracking (EI-BT) with a betatron X-ray source and present the demonstration of multimodal imaging (transmission, refraction, and scattering) with a compact light source down to the femtosecond timescale. The advantage of EI-BT is that it allows multimodal X-ray imaging technique, granting access to transmission, refraction and scattering signals from standard low-coherence laboratory X-ray sources in a single shot.
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Affiliation(s)
- Adam Doherty
- Department of Medical Physics and Biomedical Engineering, University College London, 2 Malet Pl, London, WC1E 7JE UK
| | - Sylvain Fourmaux
- Institut National de la Recherche Scientifique—Énergie, Matériaux et Télécommunications, Université du Québec, 1650 Lionel Boulet, Varennes, J3X 1P7 QC Canada
| | - Alberto Astolfo
- Department of Medical Physics and Biomedical Engineering, University College London, 2 Malet Pl, London, WC1E 7JE UK
| | - Ralf Ziesche
- Helmholtz-Zentrum Berlin für Materialien und Energie Hahn Meitner Platz 1, 14109 Berlin, Germany
| | - Jonathan Wood
- The John Adam Institute for Accelerator Science, Imperial College London, Prince Consort Road, South Kensington, London, SW7 2BW UK
| | - Oliver Finlay
- Central Laser Facility, Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX UK
| | - Wiebe Stolp
- UGCT-RP, Department of Physics and Astronomy, Ghent University, 9000 Ghent, Belgium
| | - Darren Batey
- Diamond Light Source, Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX UK
| | - Ingo Manke
- Helmholtz-Zentrum Berlin für Materialien und Energie Hahn Meitner Platz 1, 14109 Berlin, Germany
| | - François Légaré
- Institut National de la Recherche Scientifique—Énergie, Matériaux et Télécommunications, Université du Québec, 1650 Lionel Boulet, Varennes, J3X 1P7 QC Canada
| | - Matthieu Boone
- UGCT-RP, Department of Physics and Astronomy, Ghent University, 9000 Ghent, Belgium
| | - Dan Symes
- Central Laser Facility, Rutherford Appleton Laboratory, Harwell Campus, Didcot, OX11 0QX UK
| | - Zulfikar Najmudin
- The John Adam Institute for Accelerator Science, Imperial College London, Prince Consort Road, South Kensington, London, SW7 2BW UK
| | - Marco Endrizzi
- Department of Medical Physics and Biomedical Engineering, University College London, 2 Malet Pl, London, WC1E 7JE UK
| | - Alessandro Olivo
- Department of Medical Physics and Biomedical Engineering, University College London, 2 Malet Pl, London, WC1E 7JE UK
| | - Silvia Cipiccia
- Department of Medical Physics and Biomedical Engineering, University College London, 2 Malet Pl, London, WC1E 7JE UK
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Lioliou G, Roche i Morgó O, Marathe S, Wanelik K, Cipiccia S, Olivo A, Hagen CK. Cycloidal-spiral sampling for three-modal x-ray CT flyscans with two-dimensional phase sensitivity. Sci Rep 2022; 12:21336. [PMID: 36494470 PMCID: PMC9734192 DOI: 10.1038/s41598-022-25999-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 12/07/2022] [Indexed: 12/13/2022] Open
Abstract
We present a flyscan compatible acquisition scheme for three-modal X-Ray Computed Tomography (CT) with two-dimensional phase sensitivity. Our approach is demonstrated using a "beam tracking" setup, through which a sample's attenuation, phase (refraction) and scattering properties can be measured from a single frame, providing three complementary contrast channels. Up to now, such setups required the sample to be stepped at each rotation angle to sample signals at an adequate rate, to prevent resolution losses, anisotropic resolution, and under-sampling artefacts. However, the need for stepping necessitated a step-and-shoot implementation, which is affected by motors' overheads and increases the total scan time. By contrast, our proposed scheme, by which continuous horizontal and vertical translations of the sample are integrated with its rotation (leading to a "cycloidal-spiral" trajectory), is fully compatible with continuous scanning (flyscans). This leads to greatly reduced scan times while largely preserving image quality and isotropic resolution.
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Affiliation(s)
- G. Lioliou
- grid.83440.3b0000000121901201Department of Medical Physics and Biomedical Engineering, University College London, Malet Place, London, WC1E 6BT UK
| | - O. Roche i Morgó
- grid.83440.3b0000000121901201Department of Medical Physics and Biomedical Engineering, University College London, Malet Place, London, WC1E 6BT UK
| | - S. Marathe
- grid.18785.330000 0004 1764 0696Diamond Light Source, Harwell Science and Innovation Campus, Fermi Avenue, Didcot, OX11 0DE UK
| | - K. Wanelik
- grid.18785.330000 0004 1764 0696Diamond Light Source, Harwell Science and Innovation Campus, Fermi Avenue, Didcot, OX11 0DE UK
| | - S. Cipiccia
- grid.83440.3b0000000121901201Department of Medical Physics and Biomedical Engineering, University College London, Malet Place, London, WC1E 6BT UK
| | - A. Olivo
- grid.83440.3b0000000121901201Department of Medical Physics and Biomedical Engineering, University College London, Malet Place, London, WC1E 6BT UK
| | - C. K. Hagen
- grid.83440.3b0000000121901201Department of Medical Physics and Biomedical Engineering, University College London, Malet Place, London, WC1E 6BT UK
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Massimi L, Clark SJ, Marussi S, Doherty A, Shah SM, Schulz J, Marathe S, Rau C, Endrizzi M, Lee PD, Olivo A. Time resolved in-situ multi-contrast X-ray imaging of melting in metals. Sci Rep 2022; 12:12136. [PMID: 35840749 PMCID: PMC9287332 DOI: 10.1038/s41598-022-15501-2] [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: 11/19/2021] [Accepted: 06/24/2022] [Indexed: 11/30/2022] Open
Abstract
In this work, the application of a time resolved multi-contrast beam tracking technique to the investigation of the melting and solidification process in metals is presented. The use of such a technique allows retrieval of three contrast channels, transmission, refraction and dark-field, with millisecond time resolution. We investigated different melting conditions to characterize, at a proof-of-concept level, the features visible in each of the contrast channels. We found that the phase contrast channel provides a superior visibility of the density variations, allowing the liquid metal pool to be clearly distinguished. Refraction and dark-field were found to highlight surface roughness formed during solidification. This work demonstrates that the availability of the additional contrast channels provided by multi-contrast X-ray imaging delivers additional information, also when imaging high atomic number specimens with a significant absorption.
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Affiliation(s)
- Lorenzo Massimi
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK.
| | - Samuel J Clark
- Department of Mechanical Engineering, University College London, Gower St, London, WC1E 6BT, UK.,X-ray Science Division, Argonne National Laboratory, 9700 S Cass Ave, Lemont, IL, USA
| | - Sebastian Marussi
- Department of Mechanical Engineering, University College London, Gower St, London, WC1E 6BT, UK
| | - Adam Doherty
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - Saurabh M Shah
- Department of Mechanical Engineering, University College London, Gower St, London, WC1E 6BT, UK
| | - Joachim Schulz
- MicroWorks GmbH, Schnetzlerstraße 9, 76137, Karlsruhe, Germany.,Institute of Microstructure Technology, Karlsruhe Institute of Technology, 76021, Karlsruhe, Germany
| | | | - Christoph Rau
- Diamond Light Source, Harwell Oxford Campus, OX11 0DE, Didcot, UK
| | - Marco Endrizzi
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - Peter D Lee
- Department of Mechanical Engineering, University College London, Gower St, London, WC1E 6BT, UK
| | - Alessandro Olivo
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
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