1
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Williamson LJ, Galchenkova M, Best HL, Bean RJ, Munke A, Awel S, Pena G, Knoska J, Schubert R, Dörner K, Park HW, Bideshi DK, Henkel A, Kremling V, Klopprogge B, Lloyd-Evans E, Young MT, Valerio J, Kloos M, Sikorski M, Mills G, Bielecki J, Kirkwood H, Kim C, de Wijn R, Lorenzen K, Xavier PL, Rahmani Mashhour A, Gelisio L, Yefanov O, Mancuso AP, Federici BA, Chapman HN, Crickmore N, Rizkallah PJ, Berry C, Oberthür D. Structure of the Lysinibacillus sphaericus Tpp49Aa1 pesticidal protein elucidated from natural crystals using MHz-SFX. Proc Natl Acad Sci U S A 2023; 120:e2203241120. [PMID: 38015839 PMCID: PMC10710082 DOI: 10.1073/pnas.2203241120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 10/18/2023] [Indexed: 11/30/2023] Open
Abstract
The Lysinibacillus sphaericus proteins Tpp49Aa1 and Cry48Aa1 can together act as a toxin toward the mosquito Culex quinquefasciatus and have potential use in biocontrol. Given that proteins with sequence homology to the individual proteins can have activity alone against other insect species, the structure of Tpp49Aa1 was solved in order to understand this protein more fully and inform the design of improved biopesticides. Tpp49Aa1 is naturally expressed as a crystalline inclusion within the host bacterium, and MHz serial femtosecond crystallography using the novel nanofocus option at an X-ray free electron laser allowed rapid and high-quality data collection to determine the structure of Tpp49Aa1 at 1.62 Å resolution. This revealed the packing of Tpp49Aa1 within these natural nanocrystals as a homodimer with a large intermolecular interface. Complementary experiments conducted at varied pH also enabled investigation of the early structural events leading up to the dissolution of natural Tpp49Aa1 crystals-a crucial step in its mechanism of action. To better understand the cooperation between the two proteins, assays were performed on a range of different mosquito cell lines using both individual proteins and mixtures of the two. Finally, bioassays demonstrated Tpp49Aa1/Cry48Aa1 susceptibility of Anopheles stephensi, Aedes albopictus, and Culex tarsalis larvae-substantially increasing the potential use of this binary toxin in mosquito control.
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Affiliation(s)
| | - Marina Galchenkova
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
| | - Hannah L. Best
- School of Biosciences, Cardiff University, CardiffCF10 3AX, United Kingdom
| | | | - Anna Munke
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
| | - Salah Awel
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
| | - Gisel Pena
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
| | - Juraj Knoska
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
| | | | | | - Hyun-Woo Park
- Department of Biological Sciences, California Baptist University, Riverside, CA92504
| | - Dennis K. Bideshi
- Department of Biological Sciences, California Baptist University, Riverside, CA92504
| | - Alessandra Henkel
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
| | - Viviane Kremling
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
| | - Bjarne Klopprogge
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
| | - Emyr Lloyd-Evans
- School of Biosciences, Cardiff University, CardiffCF10 3AX, United Kingdom
| | - Mark T. Young
- School of Biosciences, Cardiff University, CardiffCF10 3AX, United Kingdom
| | | | - Marco Kloos
- European XFEL GmbH, 22869Schenefeld, Germany
| | | | - Grant Mills
- European XFEL GmbH, 22869Schenefeld, Germany
| | | | | | - Chan Kim
- European XFEL GmbH, 22869Schenefeld, Germany
| | | | | | - Paul Lourdu Xavier
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
- Max-Planck Institute for the Structure and Dynamics of Matter, 22761Hamburg, Germany
| | - Aida Rahmani Mashhour
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
| | - Luca Gelisio
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
| | - Oleksandr Yefanov
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
| | - Adrian P. Mancuso
- European XFEL GmbH, 22869Schenefeld, Germany
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC3086, Australia
| | - Brian A. Federici
- Department of Entomology and Institute for Integrative Genome Biology, University of California, Riverside, CA92521
| | - Henry N. Chapman
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
- Centre for Ultrafast Imaging, Universität Hamburg, 22761Hamburg, Germany
- Department of Physics, Universität Hamburg, 22761Hamburg, Germany
| | - Neil Crickmore
- School of Life Sciences, University of Sussex, Falmer, BrightonBN1 9QG, United Kingdom
| | | | - Colin Berry
- School of Biosciences, Cardiff University, CardiffCF10 3AX, United Kingdom
| | - Dominik Oberthür
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, 22607Hamburg, Germany
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2
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Birnsteinova S, Ferreira de Lima DE, Sobolev E, Kirkwood HJ, Bellucci V, Bean RJ, Kim C, Koliyadu JCP, Sato T, Dall’Antonia F, Asimakopoulou EM, Yao Z, Buakor K, Zhang Y, Meents A, Chapman HN, Mancuso AP, Villanueva-Perez P, Vagovič P. Online dynamic flat-field correction for MHz microscopy data at European XFEL. J Synchrotron Radiat 2023; 30:1030-1037. [PMID: 37729072 PMCID: PMC10624028 DOI: 10.1107/s1600577523007336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 08/21/2023] [Indexed: 09/22/2023]
Abstract
The high pulse intensity and repetition rate of the European X-ray Free-Electron Laser (EuXFEL) provide superior temporal resolution compared with other X-ray sources. In combination with MHz X-ray microscopy techniques, it offers a unique opportunity to achieve superior contrast and spatial resolution in applications demanding high temporal resolution. In both live visualization and offline data analysis for microscopy experiments, baseline normalization is essential for further processing steps such as phase retrieval and modal decomposition. In addition, access to normalized projections during data acquisition can play an important role in decision-making and improve the quality of the data. However, the stochastic nature of X-ray free-electron laser sources hinders the use of standard flat-field normalization methods during MHz X-ray microscopy experiments. Here, an online (i.e. near real-time) dynamic flat-field correction method based on principal component analysis of dynamically evolving flat-field images is presented. The method is used for the normalization of individual X-ray projections and has been implemented as a near real-time analysis tool at the Single Particles, Clusters, and Biomolecules and Serial Femtosecond Crystallography (SPB/SFX) instrument of EuXFEL.
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Affiliation(s)
| | | | | | | | | | | | - Chan Kim
- European XFEL GmbH, Schenefeld, Germany
| | | | | | | | | | - Zisheng Yao
- Synchrotron Radiation Research and NanoLund, Lund University, Lund, Sweden
| | - Khachiwan Buakor
- European XFEL GmbH, Schenefeld, Germany
- Synchrotron Radiation Research and NanoLund, Lund University, Lund, Sweden
| | - Yuhe Zhang
- Synchrotron Radiation Research and NanoLund, Lund University, Lund, Sweden
| | - Alke Meents
- Center for Free-Electron Laser Science (CFEL), DESY, Hamburg, Germany
| | - Henry N. Chapman
- Center for Free-Electron Laser Science (CFEL), DESY, Hamburg, Germany
- University of Hamburg, Hamburg, Germany
| | - Adrian P. Mancuso
- European XFEL GmbH, Schenefeld, Germany
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | | | - Patrik Vagovič
- European XFEL GmbH, Schenefeld, Germany
- Center for Free-Electron Laser Science (CFEL), DESY, Hamburg, Germany
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3
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Kirkwood HJ, de Wijn R, Mills G, Letrun R, Kloos M, Vakili M, Karnevskiy M, Ahmed K, Bean RJ, Bielecki J, Dall'Antonia F, Kim Y, Kim C, Koliyadu J, Round A, Sato T, Sikorski M, Vagovič P, Sztuk-Dambietz J, Mancuso AP. A multi-million image Serial Femtosecond Crystallography dataset collected at the European XFEL. Sci Data 2022; 9:161. [PMID: 35414146 PMCID: PMC9005607 DOI: 10.1038/s41597-022-01266-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 02/22/2022] [Indexed: 11/09/2022] Open
Abstract
Serial femtosecond crystallography is a rapidly developing method for determining the structure of biomolecules for samples which have proven challenging with conventional X-ray crystallography, such as for membrane proteins and microcrystals, or for time-resolved studies. The European XFEL, the first high repetition rate hard X-ray free electron laser, provides the ability to record diffraction data at more than an order of magnitude faster than previously achievable, putting increased demand on sample delivery and data processing. This work describes a publicly available serial femtosecond crystallography dataset collected at the SPB/SFX instrument at the European XFEL. This dataset contains information suitable for algorithmic development for detector calibration, image classification and structure determination, as well as testing and training for future users of the European XFEL and other XFELs. Measurement(s) | lysozyme measurement | Technology Type(s) | X-ray crystallography |
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Affiliation(s)
| | | | - Grant Mills
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Romain Letrun
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Marco Kloos
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | | | | | - Karim Ahmed
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | | | | | | | - Yoonhee Kim
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | - Chan Kim
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | | | - Adam Round
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany.,School of Chemical and Physical Sciences, Keele University, Staffordshire, ST5 5AZ, United Kingdom
| | - Tokushi Sato
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany
| | | | | | | | - Adrian P Mancuso
- European XFEL, Holzkoppel 4, 22869, Schenefeld, Germany.,Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, 3086, Australia
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4
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Mancuso AP, Aquila A, Batchelor L, Bean RJ, Bielecki J, Borchers G, Doerner K, Giewekemeyer K, Graceffa R, Kelsey OD, Kim Y, Kirkwood HJ, Legrand A, Letrun R, Manning B, Lopez Morillo L, Messerschmidt M, Mills G, Raabe S, Reimers N, Round A, Sato T, Schulz J, Signe Takem C, Sikorski M, Stern S, Thute P, Vagovič P, Weinhausen B, Tschentscher T. The Single Particles, Clusters and Biomolecules and Serial Femtosecond Crystallography instrument of the European XFEL: initial installation. J Synchrotron Radiat 2019; 26:660-676. [PMID: 31074429 PMCID: PMC6510195 DOI: 10.1107/s1600577519003308] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 03/07/2019] [Indexed: 05/22/2023]
Abstract
The European X-ray Free-Electron Laser (FEL) became the first operational high-repetition-rate hard X-ray FEL with first lasing in May 2017. Biological structure determination has already benefitted from the unique properties and capabilities of X-ray FELs, predominantly through the development and application of serial crystallography. The possibility of now performing such experiments at data rates more than an order of magnitude greater than previous X-ray FELs enables not only a higher rate of discovery but also new classes of experiments previously not feasible at lower data rates. One example is time-resolved experiments requiring a higher number of time steps for interpretation, or structure determination from samples with low hit rates in conventional X-ray FEL serial crystallography. Following first lasing at the European XFEL, initial commissioning and operation occurred at two scientific instruments, one of which is the Single Particles, Clusters and Biomolecules and Serial Femtosecond Crystallography (SPB/SFX) instrument. This instrument provides a photon energy range, focal spot sizes and diagnostic tools necessary for structure determination of biological specimens. The instrumentation explicitly addresses serial crystallography and the developing single particle imaging method as well as other forward-scattering and diffraction techniques. This paper describes the major science cases of SPB/SFX and its initial instrumentation - in particular its optical systems, available sample delivery methods, 2D detectors, supporting optical laser systems and key diagnostic components. The present capabilities of the instrument will be reviewed and a brief outlook of its future capabilities is also described.
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Affiliation(s)
- Adrian P. Mancuso
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
- Correspondence e-mail:
| | - Andrew Aquila
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | | | | | | | | | | | - Rita Graceffa
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | - Yoonhee Kim
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | | | - Romain Letrun
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | | | | | - Grant Mills
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Steffen Raabe
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestraße 85, 22607 Hamburg, Germany
| | - Nadja Reimers
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Adam Round
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Tokushi Sato
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestraße 85, 22607 Hamburg, Germany
| | | | | | | | - Stephan Stern
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Prasad Thute
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Patrik Vagovič
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestraße 85, 22607 Hamburg, Germany
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5
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Wojtas DH, Ayyer K, Liang M, Mossou E, Romoli F, Seuring C, Beyerlein KR, Bean RJ, Morgan AJ, Oberthuer D, Fleckenstein H, Heymann M, Gati C, Yefanov O, Barthelmess M, Ornithopoulou E, Galli L, Xavier PL, Ling WL, Frank M, Yoon CH, White TA, Bajt S, Mitraki A, Boutet S, Aquila A, Barty A, Forsyth VT, Chapman HN, Millane RP. Analysis of XFEL serial diffraction data from individual crystalline fibrils. IUCrJ 2017; 4:795-811. [PMID: 29123682 PMCID: PMC5668865 DOI: 10.1107/s2052252517014324] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 10/04/2017] [Indexed: 06/07/2023]
Abstract
Serial diffraction data collected at the Linac Coherent Light Source from crystalline amyloid fibrils delivered in a liquid jet show that the fibrils are well oriented in the jet. At low fibril concentrations, diffraction patterns are recorded from single fibrils; these patterns are weak and contain only a few reflections. Methods are developed for determining the orientation of patterns in reciprocal space and merging them in three dimensions. This allows the individual structure amplitudes to be calculated, thus overcoming the limitations of orientation and cylindrical averaging in conventional fibre diffraction analysis. The advantages of this technique should allow structural studies of fibrous systems in biology that are inaccessible using existing techniques.
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Affiliation(s)
- David H. Wojtas
- Department of Electrical and Computer Engineering, University of Canterbury, Christchurch, New Zealand
| | - Kartik Ayyer
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
| | - Mengning Liang
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Estelle Mossou
- Institut Laue-Langevin, Grenoble, France
- Faculty of Natural Sciences, Keele University, England
| | - Filippo Romoli
- European Synchrotron Radiation Facility, Grenoble, France
| | - Carolin Seuring
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
| | | | | | | | | | | | - Michael Heymann
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
- Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Cornelius Gati
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
| | | | | | - Eirini Ornithopoulou
- Department of Materials Science and Technology, University of Crete and IESL/FORTH, Crete, Greece
| | - Lorenzo Galli
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
| | - P. Lourdu Xavier
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
- Max-Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany
| | | | - Matthias Frank
- Lawrence Livermore National Laboratory, Livermore, California, USA
| | - Chun Hong Yoon
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Thomas A. White
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
| | - Saša Bajt
- Photon Science, DESY, Hamburg, Germany
| | - Anna Mitraki
- Department of Materials Science and Technology, University of Crete and IESL/FORTH, Crete, Greece
| | - Sebastien Boutet
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Andrew Aquila
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Anton Barty
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
| | - V. Trevor Forsyth
- Institut Laue-Langevin, Grenoble, France
- Faculty of Natural Sciences, Keele University, England
| | - Henry N. Chapman
- Centre for Free-Electron Laser Science, DESY, Hamburg, Germany
- Department of Physics, University of Hamburg, Hamburg, Germany
- Centre for Ultrafast Imaging, University of Hamburg, Hamburg, Germany
| | - Rick P. Millane
- Department of Electrical and Computer Engineering, University of Canterbury, Christchurch, New Zealand
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6
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Munke A, Andreasson J, Aquila A, Awel S, Ayyer K, Barty A, Bean RJ, Berntsen P, Bielecki J, Boutet S, Bucher M, Chapman HN, Daurer BJ, DeMirci H, Elser V, Fromme P, Hajdu J, Hantke MF, Higashiura A, Hogue BG, Hosseinizadeh A, Kim Y, Kirian RA, Reddy HKN, Lan TY, Larsson DSD, Liu H, Loh ND, Maia FRNC, Mancuso AP, Mühlig K, Nakagawa A, Nam D, Nelson G, Nettelblad C, Okamoto K, Ourmazd A, Rose M, van der Schot G, Schwander P, Seibert MM, Sellberg JA, Sierra RG, Song C, Svenda M, Timneanu N, Vartanyants IA, Westphal D, Wiedorn MO, Williams GJ, Xavier PL, Yoon CH, Zook J. Coherent diffraction of single Rice Dwarf virus particles using hard X-rays at the Linac Coherent Light Source. Sci Data 2016; 3:160064. [PMID: 27478984 PMCID: PMC4968191 DOI: 10.1038/sdata.2016.64] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 06/22/2016] [Indexed: 11/09/2022] Open
Abstract
Single particle diffractive imaging data from Rice Dwarf Virus (RDV) were recorded using the Coherent X-ray Imaging (CXI) instrument at the Linac Coherent Light Source (LCLS). RDV was chosen as it is a well-characterized model system, useful for proof-of-principle experiments, system optimization and algorithm development. RDV, an icosahedral virus of about 70 nm in diameter, was aerosolized and injected into the approximately 0.1 μm diameter focused hard X-ray beam at the CXI instrument of LCLS. Diffraction patterns from RDV with signal to 5.9 Ångström were recorded. The diffraction data are available through the Coherent X-ray Imaging Data Bank (CXIDB) as a resource for algorithm development, the contents of which are described here.
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Affiliation(s)
- Anna Munke
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | - Jakob Andreasson
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden.,Institute of Physics ASCR, v.v.i. (FZU), ELI-Beamlines Project, Prague 182 21, Czech Republic
| | - Andrew Aquila
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Salah Awel
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg 22607, Germany
| | - Kartik Ayyer
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg 22607, Germany
| | - Anton Barty
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg 22607, Germany
| | - Richard J Bean
- European XFEL GmbH, Holzkoppel 4, Schenefeld 22869, Germany
| | - Peter Berntsen
- Australian Research Council Centre of Excellence in Advanced Molecular Imaging, La Trobe Institute for Molecular Science, La Trobe University, Melbourne 3086, Australia
| | - Johan Bielecki
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | - Sébastien Boutet
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Maximilian Bucher
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.,Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA.,Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstraße 36, Berlin 10623, Germany
| | - Henry N Chapman
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg 22607, Germany.,Department of Physics, University of Hamburg, Hamburg 22761, Germany
| | - Benedikt J Daurer
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | - Hasan DeMirci
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.,Stanford PULSE Institute, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Veit Elser
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853, USA
| | - Petra Fromme
- Arizona State University, School of Molecular Sciences (SMS), Tempe, Arizona 85287-1604, USA.,Biodesign Center for Applied Structural Discovery, Biodesign Institute at Arizona State University, Tempe 85287, USA
| | - Janos Hajdu
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | - Max F Hantke
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | - Akifumi Higashiura
- Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan
| | - Brenda G Hogue
- Biodesign Center for Applied Structural Discovery, Biodesign Institute at Arizona State University, Tempe 85287, USA.,Arizona State University, School of Life Sciences (SOLS), Tempe, Arizona 85287-5401, USA.,Biodesign Center for Infectious Diseases and Vaccinology, Biodesign Institute at Arizona State University, Tempe 85287, USA
| | - Ahmad Hosseinizadeh
- Department of Physics, University of Wisconsin Milwaukee, 3135 North Maryland Ave., Milwaukee, Wisconsin 53211, USA
| | - Yoonhee Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - Richard A Kirian
- Biodesign Center for Applied Structural Discovery, Biodesign Institute at Arizona State University, Tempe 85287, USA.,Arizona State University, Department of Physics, Tempe, Arizona 85287, USA
| | - Hemanth K N Reddy
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | - Ti-Yen Lan
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853, USA
| | - Daniel S D Larsson
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | - Haiguang Liu
- Beijing Computational Science Research Center, 8 W Dongbeiwang Rd, Haidian, Beijing 100193, China
| | - N Duane Loh
- Centre for Bio-imaging Sciences, National University of Singapore, 14 Science Drive 4, BLK S1A, Singapore 117543, Singapore
| | - Filipe R N C Maia
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | | | - Kerstin Mühlig
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | - Atsushi Nakagawa
- Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan
| | - Daewoong Nam
- Department of Physics, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Garrett Nelson
- Arizona State University, Department of Physics, Tempe, Arizona 85287, USA
| | - Carl Nettelblad
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden.,Department of Information Technology, Science for Life Laboratory, Uppsala University, Lägerhyddsvägen 2 (Box 337), Uppsala SE-75105, Sweden
| | - Kenta Okamoto
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | - Abbas Ourmazd
- Department of Physics, University of Wisconsin Milwaukee, 3135 North Maryland Ave., Milwaukee, Wisconsin 53211, USA
| | - Max Rose
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, Hamburg D-22607, Germany
| | - Gijs van der Schot
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | - Peter Schwander
- Department of Physics, University of Wisconsin Milwaukee, 3135 North Maryland Ave., Milwaukee, Wisconsin 53211, USA
| | - M Marvin Seibert
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | - Jonas A Sellberg
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden.,Biomedical and X-Ray Physics, Department of Applied Physics, AlbaNova University Center, KTH Royal Institute of Technology, Stockholm SE-106 91, Sweden
| | - Raymond G Sierra
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.,Stanford PULSE Institute, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - Changyong Song
- Department of Physics, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Martin Svenda
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | - Nicusor Timneanu
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden.,Department of Physics and Astronomy, Uppsala University, Lägerhyddsvägen 1 (Box 516), Uppsala SE-75120, Sweden
| | - Ivan A Vartanyants
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, Hamburg D-22607, Germany.,National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe shosse 31, Moscow 115409, Russia
| | - Daniel Westphal
- Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Husargatan 3 (Box 596), Uppsala SE-75124, Sweden
| | - Max O Wiedorn
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg 22607, Germany.,Department of Physics, University of Hamburg, Hamburg 22761, Germany
| | - Garth J Williams
- Brookhaven National Laboratory, NSLS-II, Upton, New York 11973, USA
| | - Paulraj Lourdu Xavier
- Center for Free Electron Laser Science, Deutsches Elektronen-Synchrotron DESY, Hamburg 22607, Germany.,Department of Physics, University of Hamburg, Hamburg 22761, Germany.,Max-Planck Institute for the Structure and Dynamics of Matter, CFEL, Hamburg 22607, Germany
| | - Chun Hong Yoon
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
| | - James Zook
- Arizona State University, School of Molecular Sciences (SMS), Tempe, Arizona 85287-1604, USA.,Biodesign Center for Applied Structural Discovery, Biodesign Institute at Arizona State University, Tempe 85287, USA
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7
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Chen JPJ, Kirian RA, Bean RJ, Beyerlein KR, Barthelmess M, Yoon CH, Wang F, Capotondi F, Pedersoli E, Barty A, Chapman HN, Bones PJ, Arnal RD, Millane RP, Spence JCH. Phase retrieval for randomly terminated finite crystals. Acta Crystallogr A Found Adv 2015. [DOI: 10.1107/s2053273315099714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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8
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Morgan AJ, Prasciolu M, Andrejczuk A, Krzywinski J, Meents A, Pennicard D, Graafsma H, Barty A, Bean RJ, Barthelmess M, Oberthuer D, Yefanov O, Aquila A, Chapman HN, Bajt S. High numerical aperture multilayer Laue lenses. Sci Rep 2015; 5:9892. [PMID: 26030003 PMCID: PMC4450759 DOI: 10.1038/srep09892] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 03/23/2015] [Indexed: 11/17/2022] Open
Abstract
The ever-increasing brightness of synchrotron radiation sources demands improved X-ray optics to utilise their capability for imaging and probing biological cells, nanodevices, and functional matter on the nanometer scale with chemical sensitivity. Here we demonstrate focusing a hard X-ray beam to an 8 nm focus using a volume zone plate (also referred to as a wedged multilayer Laue lens). This lens was constructed using a new deposition technique that enabled the independent control of the angle and thickness of diffracting layers to microradian and nanometer precision, respectively. This ensured that the Bragg condition is satisfied at each point along the lens, leading to a high numerical aperture that is limited only by its extent. We developed a phase-shifting interferometric method based on ptychography to characterise the lens focus. The precision of the fabrication and characterisation demonstrated here provides the path to efficient X-ray optics for imaging at 1 nm resolution.
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Affiliation(s)
- Andrew J. Morgan
- Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Mauro Prasciolu
- Photon Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Andrzej Andrejczuk
- Faculty of Physics, University of Bialystok, K. Ciolkowskiego 1L, 15-245, Bialystok, Poland
| | - Jacek Krzywinski
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, CA 94025, USA
| | - Alke Meents
- Photon Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - David Pennicard
- Photon Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Heinz Graafsma
- Photon Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Anton Barty
- Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Richard J. Bean
- Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Miriam Barthelmess
- Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Dominik Oberthuer
- Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany
- Dept. of Physics, University of Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany
| | - Oleksandr Yefanov
- Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Andrew Aquila
- European XFEL GmbH, Albert Einstein Ring 19, 22761 Hamburg, Germany
| | - Henry N. Chapman
- Center for Free-Electron Laser Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany
- Dept. of Physics, University of Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany
- Centre for Ultrafast Imaging, Luruper Chaussee 149, 22607 Hamburg, Germany
| | - Saša Bajt
- Photon Science, DESY, Notkestrasse 85, 22607 Hamburg, Germany
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9
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Berenguer F, Bean RJ, Bozec L, Vila-Comamala J, Zhang F, Kewish CM, Bunk O, Rodenburg JM, Robinson IK. Coherent x-ray imaging of collagen fibril distributions within intact tendons. Biophys J 2014; 106:459-66. [PMID: 24461021 DOI: 10.1016/j.bpj.2013.12.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 12/09/2013] [Accepted: 12/11/2013] [Indexed: 11/18/2022] Open
Abstract
The characterization of the structure of highly hierarchical biosamples such as collagen-based tissues at the scale of tens of nanometers is essential to correlate the tissue structure with its growth processes. Coherent x-ray Bragg ptychography is an innovative imaging technique that gives high resolution images of the ordered parts of such samples. Herein, we report how we used this method to image the collagen fibrillar ultrastructure of intact rat tail tendons. The images show ordered fibrils extending over 10-20 μm in length, with a quantifiable D-banding spacing variation of 0.2%. Occasional defects in the fibrils distribution have also been observed, likely indicating fibrillar fusion events.
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Affiliation(s)
- Felisa Berenguer
- London Centre for Nanotechnology, University College London, London, United Kingdom.
| | - Richard J Bean
- London Centre for Nanotechnology, University College London, London, United Kingdom
| | - Laurent Bozec
- London Centre for Nanotechnology, University College London, London, United Kingdom; Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, London, United Kingdom
| | | | - Fucai Zhang
- Department of Electronic and Electric Engineering, University of Sheffield, Sheffield, United Kingdom
| | | | - Oliver Bunk
- Paul Scherrer Institut, Villigen, Switzerland
| | - John M Rodenburg
- Department of Electronic and Electric Engineering, University of Sheffield, Sheffield, United Kingdom; Research Complex at Harwell, Harwell Oxford Campus, Didcot, United Kingdom
| | - Ian K Robinson
- London Centre for Nanotechnology, University College London, London, United Kingdom; Research Complex at Harwell, Harwell Oxford Campus, Didcot, United Kingdom
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10
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Kirian RA, Bean RJ, Beyerlein KR, Yefanov OM, White TA, Barty A, Chapman HN. Phasing coherently illuminated nanocrystals bounded by partial unit cells. Philos Trans R Soc Lond B Biol Sci 2014; 369:20130331. [PMID: 24914158 PMCID: PMC4052867 DOI: 10.1098/rstb.2013.0331] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
With the use of highly coherent femtosecond X-ray pulses from a free-electron laser, it is possible to record protein nanocrystal diffraction patterns with far more information than is present in conventional crystallographic diffraction data. It has been suggested that diffraction phases may be retrieved from such data via iterative algorithms, without the use of a priori information and without restrictions on resolution. Here, we investigate the extension of this approach to nanocrystals with edge terminations that produce partial unit cells, and hence cannot be described by a common repeating unit cell. In this situation, the phase problem described in previous work must be reformulated. We demonstrate an approximate solution to this phase problem for crystals with random edge terminations.
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Affiliation(s)
- Richard A Kirian
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, Hamburg 22607, Germany
| | - Richard J Bean
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, Hamburg 22607, Germany
| | - Kenneth R Beyerlein
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, Hamburg 22607, Germany
| | - Oleksandr M Yefanov
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, Hamburg 22607, Germany
| | - Thomas A White
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, Hamburg 22607, Germany
| | - Anton Barty
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, Hamburg 22607, Germany
| | - Henry N Chapman
- Center for Free-Electron Laser Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, Hamburg 22607, Germany
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11
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Yoon CH, Barthelmess M, Bean RJ, Capotondi F, Kirian RA, Kiskinova M, Pedersoli E, Raimondi L, Stellato F, Wang F, Chapman HN. Conformation sequence recovery of a non-periodic object from a diffraction-before-destruction experiment. Opt Express 2014; 22:8085-8093. [PMID: 24718184 DOI: 10.1364/oe.22.008085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Knowledge of the sequence of different conformational states of a protein molecule is key to better understanding its biological function. A diffraction pattern from a single conformational state can be captured with an ultrafast X-ray Free-Electron Laser (XFEL) before the target is completely annihilated by the radiation. In this paper, we report the first experimental demonstration of conformation sequence recovery using diffraction patterns from randomly ordered conformations of a non-periodic object using the dimensional reduction technique Isomap and coherent diffraction imaging.
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12
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Johnson RD, Barone P, Bombardi A, Bean RJ, Picozzi S, Radaelli PG, Oh YS, Cheong SW, Chapon LC. X-ray imaging and multiferroic coupling of cycloidal magnetic domains in ferroelectric monodomain BiFeO3. Phys Rev Lett 2013; 110:217206. [PMID: 23745922 DOI: 10.1103/physrevlett.110.217206] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 04/19/2013] [Indexed: 06/02/2023]
Abstract
Magnetic domains at the surface of a ferroelectric monodomain BiFeO(3) single crystal have been imaged by hard x-ray magnetic scattering. Magnetic domains up to several hundred microns in size have been observed, corresponding to cycloidal modulations of the magnetization along the wave vector k=(δ,δ,0) and symmetry equivalent directions. The rotation direction of the magnetization in all magnetic domains, determined by diffraction of circularly polarized light, was found to be unique and in agreement with predictions of a combined approach based on a spin-model complemented by relativistic density-functional simulations. Imaging of the surface shows that the largest adjacent domains display a 120° vortex structure.
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Affiliation(s)
- R D Johnson
- Department of Physics, Clarendon Laboratory, University of Oxford, Oxford OX1 3PU, United Kingdom.
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13
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Zhang KHL, Bourlange A, Egdell RG, Collins SP, Bean RJ, Robinson IK, Cowley RA. Size-dependent shape and tilt transitions in In2O3 nanoislands grown on cubic Y-stabilized ZrO2(001) by molecular beam epitaxy. ACS Nano 2012; 6:6717-6729. [PMID: 22742516 DOI: 10.1021/nn301382j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The growth of In(2)O(3) on cubic Y-stabilized ZrO(2)(001) by molecular beam epitaxy leads to formation of nanoscale islands which may tilt relative to the substrate in order to help accommodate the 1.7% tensile mismatch between the epilayer and the substrate. High-resolution synchrotron-based X-ray diffraction has been used in combination with atomic force microscopy to probe the evolution in island morphology, orientation, and tilt with island size. Very small islands formed at low substrate coverage are highly strained but exhibit no tilt, while intermediate islands are tilted randomly in all directions, giving rise to distinctive doughnut-shaped structure in three-dimensional reciprocal space isosurfaces. The largest islands with lateral sizes on the order of 1 μm tilt away from the four equivalent in-plane <110> directions, giving three-dimensional scattering isosurfaces dominated by structure at the four corners of a square. Spatially resolved reciprocal space mapping using an X-ray beam with dimensions on the order of 1 μm suggests that the four-fold symmetry observed using a larger beam arises from averaging over an ensemble of islands, each with an individual tilt down one direction, rather than from the coexistence of differently tilted domains within a given island.
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Affiliation(s)
- Kelvin H L Zhang
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
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14
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Aranda MAG, Berenguer F, Bean RJ, Shi X, Xiong G, Collins SP, Nave C, Robinson IK. Coherent X-ray diffraction investigation of twinned microcrystals. J Synchrotron Radiat 2010; 17:751-60. [PMID: 20975220 DOI: 10.1107/s0909049510039774] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2010] [Accepted: 10/05/2010] [Indexed: 05/22/2023]
Abstract
Coherent X-ray diffraction has been used to study pseudo-merohedrally twinned manganite microcrystals. The analyzed compositions were Pr(5/8)Ca(3/8)MnO(3) and La(0.275)Pr(0.35)Ca(3/8)MnO(3). The prepared loose powder was thermally attached to glass (and quartz) capillary walls by gentle heating to ensure positional stability during data collection. Many diffraction data sets were recorded and some of them were split as expected from the main observed twin law: 180° rotation around [101]. The peak splitting was measured with very high precision owing to the high-resolution nature of the diffraction data, with a resolution (Δd/d) better than 2.0 × 10(-4). Furthermore, when these microcrystals are illuminated coherently, the different crystallographic phases of the structure factors induce interference in the form of a speckle pattern. The three-dimensional speckled Bragg peak intensity distribution has been measured providing information about the twin domains within the microcrystals. Research is ongoing to invert the measured patterns. Successful phase retrieval will allow mapping out the twin domains and twin boundaries which play a key role in the physical properties.
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Affiliation(s)
- Miguel A G Aranda
- Departamento de Química Inorgánica, Cristalografía y Mineralogía, Universidad de Málaga, 29071 Málaga, Spain.
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15
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Bland KI, Hodge KM, Bean RJ, Akin JR, Fry DE. Effects of systemic hyperthermia on the growth patterns of experimental neoplasms. Surgery 1982; 91:452-8. [PMID: 7064101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Hyperthermia has been shown to have a detrimental effect on experimental and human neoplasms. A water bath immersion system is described to evaluate the effects of systemic hyperthermia (SH) on the growth patterns of the Morris hepatoma 7777 in male Buffalo rats. SH and anesthesia were observed to have no long-term detrimental effects on weight trends or chow consumption. Inhibition of growth was demonstrated for this experimental tumor model at extreme SH (41.5 degree to 42.0 degree C), and it was statistically different (P less than 0.01) from the patterns of tumor growth observed in controls and tumor-burdened animals treated with moderate SH (39..5 degree to 40.0 degree C). Cessation of extreme SH resulted in acceleration of tumor growth so that no difference in tumor volume or animal survival was identified SH resulted in retardation of tumor growth patterns, but its effects were not sustained once treatments were stopped.
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16
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Bean RJ. NOTES ON A YOUNG HUMAN ABORTUS. Can Med Assoc J 1927; 17:815-817. [PMID: 20316422 PMCID: PMC407405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Affiliation(s)
- R J Bean
- Laboratory of Histology and Embryology, Dalhousie University, Halifax
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17
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Bean RJ. A Method of Handling Small Objects Previous to Sectioning. Science 1927; 65:502-3. [PMID: 17806536 DOI: 10.1126/science.65.1690.502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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18
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Bean RJ. The Etiology of Embryonic Deformities. Can Med Assoc J 1926; 16:652-656. [PMID: 20315815 PMCID: PMC1708932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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