51
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Aron AT, Heffern MC, Lonergan ZR, Vander Wal MN, Blank BR, Spangler B, Zhang Y, Park HM, Stahl A, Renslo AR, Skaar EP, Chang CJ. In vivo bioluminescence imaging of labile iron accumulation in a murine model of Acinetobacter baumannii infection. Proc Natl Acad Sci U S A 2017; 114:12669-12674. [PMID: 29138321 PMCID: PMC5715752 DOI: 10.1073/pnas.1708747114] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Iron is an essential metal for all organisms, yet disruption of its homeostasis, particularly in labile forms that can contribute to oxidative stress, is connected to diseases ranging from infection to cancer to neurodegeneration. Iron deficiency is also among the most common nutritional deficiencies worldwide. To advance studies of iron in healthy and disease states, we now report the synthesis and characterization of iron-caged luciferin-1 (ICL-1), a bioluminescent probe that enables longitudinal monitoring of labile iron pools (LIPs) in living animals. ICL-1 utilizes a bioinspired endoperoxide trigger to release d-aminoluciferin for selective reactivity-based detection of Fe2+ with metal and oxidation state specificity. The probe can detect physiological changes in labile Fe2+ levels in live cells and mice experiencing iron deficiency or overload. Application of ICL-1 in a model of systemic bacterial infection reveals increased iron accumulation in infected tissues that accompany transcriptional changes consistent with elevations in both iron acquisition and retention. The ability to assess iron status in living animals provides a powerful technology for studying the contributions of iron metabolism to physiology and pathology.
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Affiliation(s)
- Allegra T Aron
- Department of Chemistry, University of California, Berkeley, CA 94720
| | - Marie C Heffern
- Department of Chemistry, University of California, Berkeley, CA 94720
| | - Zachery R Lonergan
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Mark N Vander Wal
- Department of Chemistry, University of California, Berkeley, CA 94720
| | - Brian R Blank
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA 94158
| | - Benjamin Spangler
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA 94158
| | - Yaofang Zhang
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37232
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232
| | - Hyo Min Park
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, CA 94720
| | - Andreas Stahl
- Department of Nutritional Sciences and Toxicology, University of California, Berkeley, CA 94720
| | - Adam R Renslo
- Department of Pharmaceutical Chemistry, University of California, San Francisco, CA 94158
| | - Eric P Skaar
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232;
| | - Christopher J Chang
- Department of Chemistry, University of California, Berkeley, CA 94720;
- Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720
- Howard Hughes Medical Institute, University of California, Berkeley, CA 94720
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52
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Cagno S, Brede DA, Nuyts G, Vanmeert F, Pacureanu A, Tucoulou R, Cloetens P, Falkenberg G, Janssens K, Salbu B, Lind OC. Combined Computed Nanotomography and Nanoscopic X-ray Fluorescence Imaging of Cobalt Nanoparticles in Caenorhabditis elegans. Anal Chem 2017; 89:11435-11442. [DOI: 10.1021/acs.analchem.7b02554] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Simone Cagno
- Centre
for Environmental Radioactivity (Centre of Excellence), Faculty of
Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Post Office Box 5003, 1432 Ås, Norway
| | - Dag Anders Brede
- Centre
for Environmental Radioactivity (Centre of Excellence), Faculty of
Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Post Office Box 5003, 1432 Ås, Norway
| | - Gert Nuyts
- Department
of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium
| | - Frederik Vanmeert
- Department
of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium
| | - Alexandra Pacureanu
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Remi Tucoulou
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Peter Cloetens
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Gerald Falkenberg
- Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Koen Janssens
- Department
of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium
| | - Brit Salbu
- Centre
for Environmental Radioactivity (Centre of Excellence), Faculty of
Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Post Office Box 5003, 1432 Ås, Norway
| | - Ole Christian Lind
- Centre
for Environmental Radioactivity (Centre of Excellence), Faculty of
Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Post Office Box 5003, 1432 Ås, Norway
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53
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de Jonge MD, Kingston AM, Afshar N, Garrevoet J, Kirkham R, Ruben G, Myers GR, Latham SJ, Howard DL, Paterson DJ, Ryan CG, McColl G. Spiral scanning X-ray fluorescence computed tomography. OPTICS EXPRESS 2017; 25:23424-23436. [PMID: 29041643 DOI: 10.1364/oe.25.023424] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 08/25/2017] [Indexed: 06/07/2023]
Abstract
Scanning X-ray fluorescence tomography was once considered impractical due to prohibitive measurement time requirements but is now common for investigating metal distributions within small systems. A recent look-ahead to the possibilities of 4th-generation synchrotron light sources [J. Synchrotron. Radiat. 21, 1031 (2014)] raised the possibility of a spiral-scanning measurement scheme where motion overheads are almost completely eliminated. Here we demonstrate the spiral scanning measurement and use Fourier ring correlation analysis to interrogate sources of resolution degradation. We develop an extension to the Fourier ring correlation formalism that enables direct determination of resolution from the measured sinogram data, greatly enhancing its power as a diagnostic tool for computed tomography.
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54
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Ackerman CM, Lee S, Chang CJ. Analytical Methods for Imaging Metals in Biology: From Transition Metal Metabolism to Transition Metal Signaling. Anal Chem 2017; 89:22-41. [PMID: 27976855 PMCID: PMC5827935 DOI: 10.1021/acs.analchem.6b04631] [Citation(s) in RCA: 92] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Cheri M. Ackerman
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Sumin Lee
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Christopher J. Chang
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Department of Molecular and Cell Biology, University of California, Berkeley, California 94720, United States
- Howard Hughes Medical Institute, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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55
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Aschner M, Palinski C, Sperling M, Karst U, Schwerdtle T, Bornhorst J. Imaging metals in Caenorhabditis elegans. Metallomics 2017; 9:357-364. [DOI: 10.1039/c6mt00265j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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56
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Hare DJ, Jones MWM, Wimmer VC, Jenkins NL, de Jonge MD, Bush AI, McColl G. High-resolution complementary chemical imaging of bio-elements in Caenorhabditis elegans. Metallomics 2016; 8:156-60. [PMID: 26567696 DOI: 10.1039/c5mt00288e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Here, we present a sub-μm multimodal approach to image essential elements in Caenorhabditis elegans. A combination of chemical imaging technologies reveals total metal concentration, chemical state and the protein to which an element is associated. This application of distinct yet complementary chemical imaging techniques provided unique insight into essential and trace elements at the subcellular level.
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Affiliation(s)
- Dominic J Hare
- Elemental Bio-imaging Facility, University of Technology Sydney, Broadway, New South Wales 2007, Australia and The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Michael W M Jones
- Australian Synchrotron, Clayton, Victoria 3168, Australia and ARC Centre of Excellence in Advanced Molecular Imaging, La Trobe Institute for Molecular Sciences, La Trobe University, Melbourne, 3086, Australia
| | - Verena C Wimmer
- The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Nicole L Jenkins
- The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, Victoria 3010, Australia.
| | | | - Ashley I Bush
- The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Gawain McColl
- The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, Victoria 3010, Australia.
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57
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Aron AT, Loehr MO, Bogena J, Chang CJ. An Endoperoxide Reactivity-Based FRET Probe for Ratiometric Fluorescence Imaging of Labile Iron Pools in Living Cells. J Am Chem Soc 2016; 138:14338-14346. [PMID: 27768321 PMCID: PMC5749882 DOI: 10.1021/jacs.6b08016] [Citation(s) in RCA: 187] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
![]()
Iron is essential for sustaining
life, as its ability to cycle
between multiple oxidation states is critical for catalyzing chemical
transformations in biological systems. However, without proper regulation,
this same redox capacity can trigger oxidative stress events that
contribute to aging along with diseases ranging from cancer to cardiovascular
and neurodegenerative disorders. Despite its importance, methods for
monitoring biological iron bound weakly to cellular ligands−the
labile iron pool−to generate a response that preserves spatial
and temporal information remain limited, owing to the potent fluorescence
quenching ability of iron. We report the design, synthesis, and biological
evaluation of FRET Iron Probe 1 (FIP-1), a reactivity-based probe
that enables ratiometric fluorescence imaging of labile iron pools
in living systems. Inspired by antimalarial natural products and related
therapeutics, FIP-1 links two fluorophores (fluorescein and Cy3) through
an Fe(II)-cleavable endoperoxide bridge, where Fe(II)-triggered peroxide
cleavage leads to a decrease in fluorescence resonance energy transfer
(FRET) from the fluorescein donor to Cy3 acceptor by splitting these
two dyes into separate fragments. FIP-1 responds to Fe(II) in aqueous
buffer with selectivity over competing metal ions and is capable of
detecting changes in labile iron pools within living cells with iron
supplementation and/or depletion. Moreover, application of FIP-1 to
a model of ferroptosis reveals a change in labile iron pools during
this form of cell death, providing a starting point to study iron
signaling in living systems.
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Affiliation(s)
- Allegra T Aron
- Department of Chemistry, ‡Department of Molecular and Cell Biology, and §Howard Hughes Medical Institute, University of California, Berkeley , Berkeley, California 94720, United States
| | - Morten O Loehr
- Department of Chemistry, ‡Department of Molecular and Cell Biology, and §Howard Hughes Medical Institute, University of California, Berkeley , Berkeley, California 94720, United States
| | - Jana Bogena
- Department of Chemistry, ‡Department of Molecular and Cell Biology, and §Howard Hughes Medical Institute, University of California, Berkeley , Berkeley, California 94720, United States
| | - Christopher J Chang
- Department of Chemistry, ‡Department of Molecular and Cell Biology, and §Howard Hughes Medical Institute, University of California, Berkeley , Berkeley, California 94720, United States
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58
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James SA, Hare DJ, Jenkins NL, de Jonge MD, Bush AI, McColl G. Erratum: φXANES: In vivo imaging of metal-protein coordination environments. Sci Rep 2016; 6:22684. [PMID: 26998588 PMCID: PMC4801061 DOI: 10.1038/srep22684] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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59
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60
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James SA, Hare DJ, Jenkins NL, de Jonge MD, Bush AI, McColl G. φXANES: In vivo imaging of metal-protein coordination environments. Sci Rep 2016; 6:20350. [PMID: 26861174 PMCID: PMC4748213 DOI: 10.1038/srep20350] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 12/30/2015] [Indexed: 11/24/2022] Open
Abstract
We have developed an X-ray absorption near edge structure spectroscopy method using fluorescence detection for visualizing in vivo coordination environments of metals in biological specimens. This approach, which we term fluorescence imaging XANES (φXANES), allows us to spatially depict metal-protein associations in a native, hydrated state whilst avoiding intrinsic chemical damage from radiation. This method was validated using iron-challenged Caenorhabditis elegans to observe marked alterations in redox environment.
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Affiliation(s)
- Simon A James
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, 3052, Australia.,Australian Synchrotron, Clayton, Victoria, 3168, Australia
| | - Dominic J Hare
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, 3052, Australia.,Elemental Bio-imaging Facility, University of Technology Sydney, Broadway, New South Wales, 2007, Australia
| | - Nicole L Jenkins
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, 3052, Australia
| | | | - Ashley I Bush
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, 3052, Australia
| | - Gawain McColl
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, 3052, Australia
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61
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Quintanar L, Domínguez-Calva JA, Serebryany E, Rivillas-Acevedo L, Haase-Pettingell C, Amero C, King JA. Copper and Zinc Ions Specifically Promote Nonamyloid Aggregation of the Highly Stable Human γ-D Crystallin. ACS Chem Biol 2016; 11:263-72. [PMID: 26579725 DOI: 10.1021/acschembio.5b00919] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cataract is the leading cause of blindness in the world. It results from aggregation of eye lens proteins into high-molecular-weight complexes, causing light scattering and lens opacity. Copper and zinc concentrations in cataractous lens are increased significantly relative to a healthy lens, and a variety of experimental and epidemiological studies implicate metals as potential etiological agents for cataract. The natively monomeric, β-sheet rich human γD (HγD) crystallin is one of the more abundant proteins in the core of the lens. It is also one of the most thermodynamically stable proteins in the human body. Surprisingly, we found that both Cu(II) and Zn(II) ions induced rapid, nonamyloid aggregation of HγD, forming high-molecular-weight light-scattering aggregates. Unlike Zn(II), Cu(II) also substantially decreased the thermal stability of HγD and promoted the formation of disulfide-bridged dimers, suggesting distinct aggregation mechanisms. In both cases, however, metal-induced aggregation depended strongly on temperature and was suppressed by the human lens chaperone αB-crystallin (HαB), implicating partially folded intermediates in the aggregation process. Consistently, distinct site-specific interactions of Cu(II) and Zn(II) ions with the protein and conformational changes in specific hinge regions were identified by nuclear magnetic resonance. This study provides insights into the mechanisms of metal-induced aggregation of one of the more stable proteins in the human body, and it reveals a novel and unexplored bioinorganic facet of cataract disease.
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Affiliation(s)
- Liliana Quintanar
- Departamento
de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), 07360 Mexico City, México
| | - José A. Domínguez-Calva
- Departamento
de Química, Centro de Investigación y de Estudios Avanzados (Cinvestav), 07360 Mexico City, México
| | - Eugene Serebryany
- Department
of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Lina Rivillas-Acevedo
- Centro
de Investigaciones Químicas, Instituto de Investigación
en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, 62209 Cuernavaca, México
| | - Cameron Haase-Pettingell
- Department
of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Carlos Amero
- Centro
de Investigaciones Químicas, Instituto de Investigación
en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, 62209 Cuernavaca, México
| | - Jonathan A. King
- Department
of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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62
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Hare DJ, Roberts BR, McColl G. Profiling changes to natively-bound metals during Caenorhabditis elegans development. RSC Adv 2016; 6:113689-113693. [DOI: 10.1039/c6ra22084c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This paper describes a proof-of-concept study using SEC-ICP-MS to profile changes in metalloproteins during Caenorhabditis elegans development.
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Affiliation(s)
- Dominic J. Hare
- Elemental Bio-imaging Facility
- University of Technology Sydney
- Broadway
- Australia
- The Florey Institute of Neuroscience and Mental Health
| | - Blaine R. Roberts
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville
- Australia
| | - Gawain McColl
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville
- Australia
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63
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Ganio K, James SA, Hare DJ, Roberts BR, McColl G. Accurate biometal quantification per individual Caenorhabditis elegans. Analyst 2016; 141:1434-9. [DOI: 10.1039/c5an02544c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A comparison of complementary methods to quantify biometals per individual for analytical biochemical studies using microscopic model organisms.
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Affiliation(s)
- Katherine Ganio
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville
- Australia
| | - Simon A. James
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville
- Australia
| | - Dominic J. Hare
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville
- Australia
- Elemental Bio-imaging Facility
| | - Blaine R. Roberts
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville
- Australia
| | - Gawain McColl
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville
- Australia
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64
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Hare DJ, New EJ, de Jonge MD, McColl G. Imaging metals in biology: balancing sensitivity, selectivity and spatial resolution. Chem Soc Rev 2015; 44:5941-58. [DOI: 10.1039/c5cs00055f] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A Tutorial Review to aid in designing the most comprehensive metal imaging experiments for biological samples.
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Affiliation(s)
- Dominic J. Hare
- Elemental Bio-imaging Facility
- University of Technology Sydney
- Broadway
- Australia
- The Florey Institute of Neuroscience and Mental Health
| | | | | | - Gawain McColl
- The Florey Institute of Neuroscience and Mental Health
- The University of Melbourne
- Parkville
- Australia
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