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Morrell AP, Mosselmans JFW, Geraki K, Ignatyev K, Castillo-Michel H, Monksfield P, Warfield AT, Febbraio M, Roberts HM, Addison O, Martin RA. Implications of X-ray beam profiles on qualitative and quantitative synchrotron micro-focus X-ray fluorescence microscopy. JOURNAL OF SYNCHROTRON RADIATION 2018; 25:1719-1726. [PMID: 30407182 DOI: 10.1107/s160057751801247x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 09/04/2018] [Indexed: 06/08/2023]
Abstract
Synchrotron radiation X-ray fluorescence microscopy is frequently used to investigate the spatial distribution of elements within a wide range of samples. Interrogation of heterogeneous samples that contain large concentration ranges has the potential to produce image artefacts due to the profile of the X-ray beam. The presence of these artefacts and the distribution of flux within the beam profile can significantly affect qualitative and quantitative analyses. Two distinct correction methods have been generated by referencing the beam profile itself or by employing an adaptive-thresholding procedure. Both methods significantly improve qualitative imaging by removing the artefacts without compromising the low-intensity features. The beam-profile correction method improves quantitative results but requires accurate two-dimensional characterization of the X-ray beam profile.
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Affiliation(s)
- Alexander P Morrell
- Aston Institute of Materials Research, School of Engineering, University of Aston, Birmingham B4 7ET, UK
| | | | - Kalotina Geraki
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxon OX11 0DE, UK
| | - Konstantin Ignatyev
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxon OX11 0DE, UK
| | | | - Peter Monksfield
- University Hospitals Birmingham, NHS Foundation Trust, Edgbaston, Birmingham B15 2TH, UK
| | - Adrian T Warfield
- University Hospitals Birmingham, NHS Foundation Trust, Edgbaston, Birmingham B15 2TH, UK
| | - Maria Febbraio
- School of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada T6G 1C9
| | - Helen M Roberts
- School of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada T6G 1C9
| | - Owen Addison
- School of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada T6G 1C9
| | - Richard A Martin
- Aston Institute of Materials Research, School of Engineering, University of Aston, Birmingham B4 7ET, UK
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Chen S, Deng J, Yuan Y, Flachenecker C, Mak R, Hornberger B, Jin Q, Shu D, Lai B, Maser J, Roehrig C, Paunesku T, Gleber SC, Vine DJ, Finney L, VonOsinski J, Bolbat M, Spink I, Chen Z, Steele J, Trapp D, Irwin J, Feser M, Snyder E, Brister K, Jacobsen C, Woloschak G, Vogt S. The Bionanoprobe: hard X-ray fluorescence nanoprobe with cryogenic capabilities. JOURNAL OF SYNCHROTRON RADIATION 2014; 21:66-75. [PMID: 24365918 PMCID: PMC3874019 DOI: 10.1107/s1600577513029676] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Accepted: 10/28/2013] [Indexed: 05/20/2023]
Abstract
Hard X-ray fluorescence microscopy is one of the most sensitive techniques for performing trace elemental analysis of biological samples such as whole cells and tissues. Conventional sample preparation methods usually involve dehydration, which removes cellular water and may consequently cause structural collapse, or invasive processes such as embedding. Radiation-induced artifacts may also become an issue, particularly as the spatial resolution increases beyond the sub-micrometer scale. To allow imaging under hydrated conditions, close to the `natural state', as well as to reduce structural radiation damage, the Bionanoprobe (BNP) has been developed, a hard X-ray fluorescence nanoprobe with cryogenic sample environment and cryo transfer capabilities, dedicated to studying trace elements in frozen-hydrated biological systems. The BNP is installed at an undulator beamline at sector 21 of the Advanced Photon Source. It provides a spatial resolution of 30 nm for two-dimensional fluorescence imaging. In this first demonstration the instrument design and motion control principles are described, the instrument performance is quantified, and the first results obtained with the BNP on frozen-hydrated whole cells are reported.
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Affiliation(s)
- S. Chen
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - J. Deng
- Applied Physics, Northwestern University, Evanston, IL 60208, USA
| | - Y. Yuan
- Department of Radiation Oncology, Northwestern University, Chicago, IL 60611, USA
| | | | - R. Mak
- Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
| | | | - Q. Jin
- Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
| | - D. Shu
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - B. Lai
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - J. Maser
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - C. Roehrig
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - T. Paunesku
- Department of Radiation Oncology, Northwestern University, Chicago, IL 60611, USA
| | - S. C. Gleber
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - D. J. Vine
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - L. Finney
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - J. VonOsinski
- Northwestern Synchrotron Research Center, Argonne, IL 60439, USA
| | - M. Bolbat
- Northwestern Synchrotron Research Center, Argonne, IL 60439, USA
| | - I. Spink
- Xradia Inc., Pleasanton, CA 94588, USA
| | - Z. Chen
- Xradia Inc., Pleasanton, CA 94588, USA
| | - J. Steele
- Xradia Inc., Pleasanton, CA 94588, USA
| | - D. Trapp
- Xradia Inc., Pleasanton, CA 94588, USA
| | - J. Irwin
- Xradia Inc., Pleasanton, CA 94588, USA
| | - M. Feser
- Xradia Inc., Pleasanton, CA 94588, USA
| | - E. Snyder
- Xradia Inc., Pleasanton, CA 94588, USA
| | - K. Brister
- Northwestern Synchrotron Research Center, Argonne, IL 60439, USA
| | - C. Jacobsen
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
- Applied Physics, Northwestern University, Evanston, IL 60208, USA
- Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
- Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA
| | - G. Woloschak
- Department of Radiation Oncology, Northwestern University, Chicago, IL 60611, USA
| | - S. Vogt
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
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Vogt S, Ralle M. Opportunities in multidimensional trace metal imaging: taking copper-associated disease research to the next level. Anal Bioanal Chem 2013; 405:1809-20. [PMID: 23079951 PMCID: PMC3566297 DOI: 10.1007/s00216-012-6437-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 09/07/2012] [Accepted: 09/18/2012] [Indexed: 01/09/2023]
Abstract
Copper plays an important role in numerous biological processes across all living systems predominantly because of its versatile redox behavior. Cellular copper homeostasis is tightly regulated and disturbances lead to severe disorders such as Wilson disease and Menkes disease. Age-related changes of copper metabolism have been implicated in other neurodegenerative disorders such as Alzheimer disease. The role of copper in these diseases has been a topic of mostly bioinorganic research efforts for more than a decade, metal-protein interactions have been characterized, and cellular copper pathways have been described. Despite these efforts, crucial aspects of how copper is associated with Alzheimer disease, for example, are still only poorly understood. To take metal-related disease research to the next level, emerging multidimensional imaging techniques are now revealing the copper metallome as the basis to better understand disease mechanisms. This review describes how recent advances in X-ray fluorescence microscopy and fluorescent copper probes have started to contribute to this field, specifically in Wilson disease and Alzheimer disease. It furthermore provides an overview of current developments and future applications in X-ray microscopic methods.
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Affiliation(s)
- Stefan Vogt
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439
| | - Martina Ralle
- Department of Biochemistry and Molecular Biology, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd, Portland, OR 97239
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