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Natural and enriched Cr target development for production of Manganese-52. Sci Rep 2023; 13:1167. [PMID: 36670119 PMCID: PMC9859786 DOI: 10.1038/s41598-022-27257-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 12/28/2022] [Indexed: 01/21/2023] Open
Abstract
52Mn is a promising PET radiometal with a half-life of 5.6 days and an average positron energy of 242 keV. Typically, chromium of natural isotope abundance is used as a target material to produce this isotope through the nat/52Cr(p,n)52Mn reaction. While natural Cr is a suitable target material, higher purity 52Mn could be produced by transitioning to enriched 52Cr targets to prevent the co-production of long-lived 54Mn (t1/2 = 312 day). Unfortunately, 52Cr targets are not cost-effective without recycling processes in place, therefore, this work aims to explore routes to prepare Cr targets that could be recycled. Natural Cr foils, metal powder pellets, enriched chromium-52 oxide and Cr(III) electroplated targets were investigated in this work. Each of these cyclotron targets were irradiated, and the produced 52Mn was purified, when possible, using a semi-automated system. An improved purification by solid-phase anion exchange from ethanol-HCl mixtures resulted in recoveries of 94.5 ± 2.2% of 52Mn. The most promising target configuration to produce a recyclable target was electroplated Cr(III). This work presents several pathways to optimize enriched Cr targets for the production of high purity 52Mn.
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Lin W, Wilkinson JT, Barrett KE, Barnhart TE, Gott M, Becker KV, Clark AM, Miller A, Brown G, DeLuca M, Bartsch R, Peaslee GF, Engle JW. Excitation function of 54Fe(p, α) 51Mn from 9.5 MeV to 18 MeV. NUCLEAR PHYSICS. A 2022; 1021:122424. [PMID: 35967889 PMCID: PMC9371937 DOI: 10.1016/j.nuclphysa.2022.122424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Excitation function of the 54Fe(p,α)51Mn reaction was measured from 9.5 to 18 MeV E 0 , p + by activating a foil stack of 54Fe electrodeposited on copper substrates. Residual radionuclides were quantified by HPGe gamma ray spectrometry. Both 51Mn (t 1/2 = 46.2 min, 〈 E β + 〉 = 963.7 keV , I β + = 97 % ; E γ = 749.1 keV, I γ = 0.265%) and its radioactive daughter, 51Cr (t 1/2 = 27.704d, E γ = 320.1 keV, I γ = 9.91%), were used to indirectly quantify formation of 51Mn. Results agree within uncertainty to the only other measurement in literature and predictions of default TALYS theoretical code. Final relative uncertainties are within ±12%.
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Affiliation(s)
- Wilson Lin
- Department of Medical Physics, University of Wisconsin, 1111 Highland Ave., Madison, WI, 53705, United States
| | - John T. Wilkinson
- Department of Physics, University of Notre Dame, Notre Dame, IN, 46556, United States
| | - Kendall E. Barrett
- Department of Medical Physics, University of Wisconsin, 1111 Highland Ave., Madison, WI, 53705, United States
| | - Todd E. Barnhart
- Department of Medical Physics, University of Wisconsin, 1111 Highland Ave., Madison, WI, 53705, United States
| | - Matthew Gott
- Physics Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL, 60439, United States
| | - Kaelyn V. Becker
- Department of Medical Physics, University of Wisconsin, 1111 Highland Ave., Madison, WI, 53705, United States
| | - Adam M. Clark
- Department of Physics, University of Notre Dame, Notre Dame, IN, 46556, United States
| | - Anthony Miller
- Department of Physics, University of Notre Dame, Notre Dame, IN, 46556, United States
| | - Gunnar Brown
- Department of Physics, University of Notre Dame, Notre Dame, IN, 46556, United States
| | - Molly DeLuca
- Department of Physics, University of Notre Dame, Notre Dame, IN, 46556, United States
| | - Robert Bartsch
- Department of Physics, University of Notre Dame, Notre Dame, IN, 46556, United States
| | - Graham F. Peaslee
- Department of Physics, University of Notre Dame, Notre Dame, IN, 46556, United States
| | - Jonathan W. Engle
- Department of Medical Physics, University of Wisconsin, 1111 Highland Ave., Madison, WI, 53705, United States
- Department of Radiology, University of Wisconsin, 600 Highland Ave., Madison, WI, 53792, United States
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Pyles JM, Massicano AV, Appiah JP, Bartels JL, Alford A, Lapi SE. Production of 52Mn using a semi-automated module. Appl Radiat Isot 2021; 174:109741. [DOI: 10.1016/j.apradiso.2021.109741] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/01/2021] [Accepted: 04/14/2021] [Indexed: 12/14/2022]
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Production of a broad palette of positron emitting radioisotopes using a low-energy cyclotron: Towards a new success story in cancer imaging? Appl Radiat Isot 2021; 176:109860. [PMID: 34284216 DOI: 10.1016/j.apradiso.2021.109860] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 06/28/2021] [Accepted: 07/09/2021] [Indexed: 12/20/2022]
Abstract
Over the last several years, positron emission tomography (PET) has matured as an indispensable component of cancer diagnostics. Owing to the large variability observed among the cancer patients and the need to personalize individual patient's diagnosis and treatment, the need for new positron emitting radioisotopes has continued to grow. This mini review opens with a brief introduction to the criteria for radioisotope selection for PET imaging. Subsequently, positron emitting radioisotopes are categorized as: established, emerging and futuristic, based on the stages of their advancement. The production methodologies and the radiochemical separation procedures for obtaining the important radioisotopes in a form suitable for preparation of radiopharmaceuticals for PET imaging are briefly discussed.
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Choudhary N, Barrett KE, Kubeil M, Radchenko V, Engle JW, Stephan H, de Guadalupe Jaraquemada-Peláez M, Orvig C. Metal ion size profoundly affects H 3glyox chelate chemistry. RSC Adv 2021; 11:15663-15674. [PMID: 35481219 PMCID: PMC9029555 DOI: 10.1039/d1ra01793d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 04/16/2021] [Indexed: 02/01/2023] Open
Abstract
The bisoxine hexadentate chelating ligand, H3glyox was investigated for its affinity for Mn2+, Cu2+ and Lu3+ ions; all three metal ions are relevant with applications in nuclear medicine and medicinal inorganic chemistry. The aqueous coordination chemistry and thermodynamic stability of all three metal complexes were thoroughly investigated by detailed DFT structure calculations and stability constant determination, by employing UV in-batch spectrophotometric titrations, giving pM values (pM = −log[Mn+]free when [Mn+] = 1 μM, [L] = 10 μM at pH 7.4 and 25 °C) – pCu (25.2) > pLu (18.1) > pMn (12.0). DFT calculated structures revealed different geometries and coordination preferences of the three metal ions; notable was an inner sphere water molecule in the Mn2+ complex. H3glyox labels [52gMn]Mn2+, [64Cu]Cu2+ and [177Lu]Lu3+ at ambient conditions with apparent molar activities of 40 MBq μmol−1, 500 MBq μmol−1 and 25 GBq μmol−1, respectively. Collectively, these initial investigations provide insight into the effects of metal ion size and charge on the chelation with the hexadentate H3glyox and indicate that further investigations of the Mn2+–H3glyox complex in 52g/55Mn-based bimodal imaging might be worthwhile. The bisoxine hexadentate chelating ligand, H3glyox was investigated for its affinity for Mn2+, Cu2+ and Lu3+ ions; all three metal ions are relevant with applications in nuclear medicine and medicinal inorganic chemistry.![]()
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Affiliation(s)
- Neha Choudhary
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia V6T 1Z1 Canada .,Life Sciences Division, TRIUMF 4004 Wesbrook Mall Vancouver British Columbia V6T 2A3 Canada
| | - Kendall E Barrett
- Department of Medical Physics, University of Wisconsin 1111 Highland Avenue Madison WI 53711 USA
| | - Manja Kubeil
- Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf Bautzner Landstraße 400 D-01328 Dresden Germany
| | - Valery Radchenko
- Life Sciences Division, TRIUMF 4004 Wesbrook Mall Vancouver British Columbia V6T 2A3 Canada.,Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia V6T 1Z1 Canada
| | - Jonathan W Engle
- Department of Medical Physics, University of Wisconsin 1111 Highland Avenue Madison WI 53711 USA
| | - Holger Stephan
- Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf Bautzner Landstraße 400 D-01328 Dresden Germany
| | - María de Guadalupe Jaraquemada-Peláez
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia V6T 1Z1 Canada
| | - Chris Orvig
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia 2036 Main Mall Vancouver British Columbia V6T 1Z1 Canada
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Barrett KE, Aluicio-Sarduy E, Happel S, Olson AP, Kutyreff CJ, Ellison PA, Barnhart TE, Engle JW. Characterization of actinide resin for separation of 51,52gMn from bulk target material. Nucl Med Biol 2021; 96-97:19-26. [PMID: 33725498 DOI: 10.1016/j.nucmedbio.2021.02.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 10/01/2020] [Accepted: 02/17/2021] [Indexed: 01/28/2023]
Abstract
We report an extraction chromatography-based method via Actinide Resin for the isolation of radio-manganese from both natural chromium and isotopically enriched iron targets for cyclotron production of 52gMn and 51Mn. For the separation of 52gMn from natCr, a decay-corrected radiochemical yield of 83.7 ± 8.4% was achieved. For 51Mn from 54Fe, a decay-corrected radiochemical yield of 78 ± 11% was achieved. This automatable method efficiently isolates both radionuclides from accelerator target material.
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Affiliation(s)
- Kendall E Barrett
- University of Wisconsin, Department of Medical Physics, 1111 Highland Avenue, Madison, WI 53711, United States of America
| | - Eduardo Aluicio-Sarduy
- University of Wisconsin, Department of Medical Physics, 1111 Highland Avenue, Madison, WI 53711, United States of America
| | - Steffen Happel
- TrisKem International, 3 Rue des Champs Géons ZAC de L'Éperon, 35170 Bruz, France
| | - Aeli P Olson
- University of Wisconsin, Department of Medical Physics, 1111 Highland Avenue, Madison, WI 53711, United States of America
| | - Christopher J Kutyreff
- University of Wisconsin, Department of Medical Physics, 1111 Highland Avenue, Madison, WI 53711, United States of America
| | - Paul A Ellison
- University of Wisconsin, Department of Medical Physics, 1111 Highland Avenue, Madison, WI 53711, United States of America
| | - Todd E Barnhart
- University of Wisconsin, Department of Medical Physics, 1111 Highland Avenue, Madison, WI 53711, United States of America
| | - Jonathan W Engle
- University of Wisconsin, Department of Medical Physics, 1111 Highland Avenue, Madison, WI 53711, United States of America; University of Wisconsin, Department of Radiology, 600 Highland Avenue, Madison, WI 53792, United States of America.
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Coenen HH, Ermert J. Expanding PET-applications in life sciences with positron-emitters beyond fluorine-18. Nucl Med Biol 2020; 92:241-269. [PMID: 32900582 DOI: 10.1016/j.nucmedbio.2020.07.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 07/09/2020] [Indexed: 12/20/2022]
Abstract
Positron-emission-tomography (PET) has become an indispensable diagnostic tool in modern nuclear medicine. Its outstanding molecular imaging features allow repetitive studies on one individual and with high sensitivity, though no interference. Rather few positron-emitters with near favourable physical properties, i.e. carbon-11 and fluorine-18, furnished most studies in the beginning, preferably if covalently bound as isotopic label of small molecules. With the advancement of PET-devices the scope of in vivo research in life sciences and especially that of medical applications expanded, and other than "standard" PET-nuclides received increasing significance, like the radiometals copper-64 and gallium-68. Especially during the last decades, positron-emitters of other chemical elements have gotten into the focus of interest, concomitant with the technical advancements in imaging and radionuclide production. With known nuclear imaging properties and main production methods of emerging positron-emitters their usefulness for medical application is promising and even proven for several ones already. Unfortunate decay properties could be corrected for, and β+-emitters, especially with a longer half-life, provided new possibilities for application where slower processes are of importance. Further on, (bio)chemical features of positron-emitters of other elements, among there many metals, not only expanded the field of classical clinical investigations, but also opened up new fields of application. Appropriately labelled peptides, proteins and nanoparticles lend itself as newer probes for PET-imaging, e.g. in theragnostic or PET/MR hybrid imaging. Furthermore, the potential of non-destructive in-vivo imaging with positron-emission-tomography directs the view on further areas of life sciences. Thus, exploiting the excellent methodology for basic research on molecular biochemical functions and processes is increasingly encouraged as well in areas outside of health, such as plant and environmental sciences.
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Affiliation(s)
- Heinz H Coenen
- Institut für Neurowissenschaften und Medizin, INM-5, Nuklearchemie, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.
| | - Johannes Ermert
- Institut für Neurowissenschaften und Medizin, INM-5, Nuklearchemie, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany.
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Brandt M, Cardinale J, Rausch I, Mindt TL. Manganese in PET imaging: Opportunities and challenges. J Labelled Comp Radiopharm 2020; 62:541-551. [PMID: 31115089 PMCID: PMC6771670 DOI: 10.1002/jlcr.3754] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/09/2019] [Accepted: 05/11/2019] [Indexed: 12/22/2022]
Abstract
Several radionuclides of the transition metal manganese are known and accessible. Three of them, 51Mn, 52mMn, and 52gMn, are positron emitters that are potentially interesting for positron emission tomography (PET) applications and, thus, have caught the interest of the radiochemical/radiopharmaceutical and nuclear medicine communities. This mini‐review provides an overview of the production routes and physical properties of these radionuclides. For medical imaging, the focus is on the longer‐living 52gMn and its application for the radiolabelling of molecules and other entities exhibiting long biological half‐lives, the imaging of manganese‐dependent biological processes, and the development of bimodal PET/magnetic resonance imaging (MRI) probes in combination with paramagnetic natMn as a contrast agent.
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Affiliation(s)
- Marie Brandt
- Ludwig Boltzmann Institute Applied Diagnostics, General Hospital of Vienna, Vienna, Austria.,Department of Biomedical Imaging and Image Guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, Austria
| | - Jens Cardinale
- Ludwig Boltzmann Institute Applied Diagnostics, General Hospital of Vienna, Vienna, Austria.,Department of Biomedical Imaging and Image Guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, Austria
| | - Ivo Rausch
- Center for Medical Physics and Biomedical Engineering, Medical University Vienna, Vienna, Austria
| | - Thomas L Mindt
- Ludwig Boltzmann Institute Applied Diagnostics, General Hospital of Vienna, Vienna, Austria.,Department of Biomedical Imaging and Image Guided Therapy, Division of Nuclear Medicine, Medical University of Vienna, Vienna, Austria.,Department of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Vienna, Austria
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