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Kobayashi T, Fushimi T, Mizukoshi H, Motokawa R, Sasaki T. Structural Approach to Understanding the Formation of Amorphous Metal Hydroxides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:14656-14665. [PMID: 36399660 DOI: 10.1021/acs.langmuir.2c02081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
This study investigates the formation of amorphous tetravalent metal hydroxides, M(OH)4, based on the structural analysis by small- and wide-angle X-ray scattering (SWAXS) and on the electrical potential charge near the surface of M(OH)4 particles. The amorphous zirconium hydroxide solid phases that aged in NaCl and CaCl2 solutions at 25 °C exhibited a hierarchical structure consisting of primary particles of a few nanometers in size and their aggregates more than 100 nm in size. The SWAXS profiles suggested that the size of the primary particles depends on the ionic strength and electrolytes in the sample solutions. The smaller size of the primary particles observed in solutions with higher ionic strength can be explained by the thinner electrical double layer. Additionally, we focused on the ζ potentials of M(OH)4 suspensions in NaCl, NaNO3, and CaCl2 solutions. With the aid of reference systems of metal oxides, MO2, it was found that the ζ potentials were well interpreted by a traditional surface ionization and complexation model, and the size distributions of large aggregates were explained by the classical Derjaguin-Landau-Verwey-Overbeek (DLVO) theory with the ζ potential values. The present study suggests the formation mechanism of amorphous metal hydroxides through a combination of structural analysis and investigation of electrical potentials.
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Affiliation(s)
- Taishi Kobayashi
- Department of Nuclear Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto615-8540, Japan
| | - Tomokazu Fushimi
- Department of Nuclear Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto615-8540, Japan
| | - Hirofumi Mizukoshi
- Department of Nuclear Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto615-8540, Japan
| | - Ryuhei Motokawa
- Materials Sciences Research Center, Japan Atomic Energy Agency (JAEA), Tokai, Naka-gun, Ibaraki319-1195, Japan
| | - Takayuki Sasaki
- Department of Nuclear Engineering, Kyoto University, Kyotodaigaku-katsura, Nishikyo-ku, Kyoto615-8540, Japan
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Zhu S, Wang Y, Zheng C, Wang Y, Tian Q, Henderson MJ, Yan M. Gaomiaozi bentonite colloids: Interactions with plutonium (IV) and zirconium (IV). Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Savastano M, Boscaro F, Bianchi A. Metal Coordination Properties of a Chromophoric Desferrioxamine (DFO) Derivative: Insight on the Coordination Stoichiometry and Thermodynamic Stability of Zr 4+ Complexes. Molecules 2021; 27:molecules27010184. [PMID: 35011419 PMCID: PMC8746621 DOI: 10.3390/molecules27010184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/21/2021] [Accepted: 12/22/2021] [Indexed: 11/16/2022] Open
Abstract
Desferrioxamine (DFO) is the current "gold standard" chelator for 89Zr4+, which is used to label monoclonal antibodies for applications in immunopositron emission tomography. Recently, controversial data have been reported regarding the speciation and the stability of the complexes formed by DFO with Zr4+ in solution. To shed some light on this point, we studied the coordination properties in solution ofa chromophoric DFO derivative bearing a substituted pyrimidine residue (DFO-Pm) toward several metal ions (Zr4+, Cu2+, Zn2+, Mg2+, Ca2+, Na+, K+). Potentiometric titrations showed that DFO-Pm and pristine DFO form complexes with very similar stoichiometry and stability. DFO-Pm, which can consequently be taken as a model system for DFO, provides a photochemical response to metal coordination that can be used to further define the complexes formed. In the critical case of Zr4+, spectrophotometric measurements allowed the verification of the formation of 1:1 and 2:3 complexes that, together with 2:2 complexes form the coordination model that was obtained through the use of our potentiometric measurements. Additionally, mass spectrometry measurements verified the formation of 1:1 and 2:3 complexes and showed that 1:2 species can be easily generated through the fragmentation of the 2:3 species. In conclusion, the results obtained with DFO-Pm validate the complexation model of Zr4+/DFO composed of 1:1, 2:2, and 2:3 metal-to-ligand complexes. Convergences and conflicts with other works are addressed.
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Affiliation(s)
- Matteo Savastano
- Department of Chemistry “Ugo Schiff”, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy;
- Correspondence:
| | - Francesca Boscaro
- Centro Interdipartimentale di Spettrometria di Massa (CISM), University of Florence, Viale G. Pieraccini 6, 50139 Florence, Italy;
| | - Antonio Bianchi
- Department of Chemistry “Ugo Schiff”, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy;
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Selective adsorption of molybdenum ions on ionic liquid-loaded resin containing 1-butyl-3-methylimidazolium(2,4,6-trimethyl)benzodithioate. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07970-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Stern RD, Kingsbury RS, Persson KA. Aqueous Stability of Zirconium Clusters, Including the Zr(IV) Hexanuclear Hydrolysis Complex [Zr 6O 4(OH) 4(H 2O) 24] 12+, from Density Functional Theory. Inorg Chem 2021; 60:15456-15466. [PMID: 34619971 DOI: 10.1021/acs.inorgchem.1c02078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Framework materials constitute a broad family of solids that range from zeolites and metal-organic frameworks (MOFs) to coordination polymers. The synthesis of such network structures typically rely on precursor molecular building blocks. As an example, the UiO-66 MOF series is constructed of hexanuclear [Zr6O4(OH)4(CO2)12] cluster nodes and linear carboxylate linkers. Unfortunately, these Zr MOF cluster nodes cannot currently be manufactured in a sustainable way, motivating a search for "green" alternative synthesis methods. Stabilizing the hexanuclear Zr(IV) cluster (i.e., the hexamer, {Zr612+}) without the use of organic ligation would enable the use of environmentally friendly solvents such as water. The Zr(IV) tetranuclear cluster (i.e., the tetramer, {Zr48+}) can be stabilized in solution with or without organic ligands, yet the hexamer has yet to be synthesized without supporting ligands. The reasons why certain zirconium clusters are favored in aqueous solution over others are not well understood. This study reports the relative thermodynamic instability of the hypothetical hexamer {Zr612+} compared to the ubiquitous {Zr48+} tetramer. Density functional theory calculations were performed to obtain the hydrolysis Gibbs free energy of these species and used to construct Zr Pourbaix diagrams that illustrate the effects of electrochemical potential, pH, and Zr(IV) concentration. It was found that the aqueous {Zr612+} hexamer is ∼17.8 kcal/mol less stable than the aqueous {Zr48+} tetramer at pH = 0, V = 0, and [Zr(IV)] = 1 M, which is an energy difference on the order of counterion interactions. Electronic structure analyses were used to explore trends in the highest occupied molecular orbital-lowest unoccupied molecular orbital gap, frontier molecular orbitals, and electrostatic potential distribution of these clusters. The evidence suggests that the aqueous {Zr612+} hexamer may be promoted with more strategic syntheses incorporating minimal ligands and counterions.
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Affiliation(s)
- Rebecca D Stern
- Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, California 94720, United States
| | - Ryan S Kingsbury
- Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, California 94720, United States
| | - Kristin A Persson
- Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, California 94720, United States.,Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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Imura R, Ida H, Sasaki I, Ishioka NS, Watanabe S. Re-Evaluations of Zr-DFO Complex Coordination Chemistry for the Estimation of Radiochemical Yields and Chelator-to-Antibody Ratios of 89Zr Immune-PET Tracers. Molecules 2021; 26:4977. [PMID: 34443566 PMCID: PMC8401698 DOI: 10.3390/molecules26164977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 08/06/2021] [Accepted: 08/14/2021] [Indexed: 11/19/2022] Open
Abstract
(1) Background: Deferoxamine B (DFO) is the most widely used chelator for labeling of zirconium-89 (89Zr) to monoclonal antibody (mAb). Despite the remarkable developments of the clinical 89Zr-immuno-PET, chemical species and stability constants of the Zr-DFO complexes remain controversial. The aim of this study was to re-evaluate their stability constants by identifying species of Zr-DFO complexes and demonstrate that the stability constants can estimate radiochemical yield (RCY) and chelator-to-antibody ratio (CAR). (2) Methods: Zr-DFO species were determined by UV and ESI-MS spectroscopy. Stability constants and speciation of the Zr-DFO complex were redetermined by potentiometric titration. Complexation inhibition of Zr-DFO by residual impurities was investigated by competition titration. (3) Results: Unknown species, ZrHqDFO2, were successfully detected by nano-ESI-Q-MS analysis. We revealed that a dominant specie under radiolabeling condition (pH 7) was ZrHDFO, and its stability constant (logβ111) was 49.1 ± 0.3. Competition titration revealed that residual oxalate inhibits Zr-DFO complex formation. RCYs in different oxalate concentration (0.1 and 0.04 mol/L) were estimated to be 86% and >99%, which was in good agreement with reported results (87%, 97%). (4) Conclusion: This study succeeded in obtaining accurate stability constants of Zr-DFO complexes and estimating RCY and CAR from accurate stability constants established in this study.
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Affiliation(s)
- Ryota Imura
- Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan;
- JFE Engineering Corporation, 2-1 Suehiro-cho, Tsurumi-ku, Yokohama 230-8611, Japan;
| | - Hiroyuki Ida
- JFE Engineering Corporation, 2-1 Suehiro-cho, Tsurumi-ku, Yokohama 230-8611, Japan;
| | - Ichiro Sasaki
- Department of Radiation-Applied Biology Research, Takasaki Advanced Radiation Research Institute, National Institute of Quantum and Radiological Science and Technology (QST), 1233 Watanuki, Takasaki, Gunma 370-1292, Japan; (I.S.); (N.S.I.)
| | - Noriko S. Ishioka
- Department of Radiation-Applied Biology Research, Takasaki Advanced Radiation Research Institute, National Institute of Quantum and Radiological Science and Technology (QST), 1233 Watanuki, Takasaki, Gunma 370-1292, Japan; (I.S.); (N.S.I.)
| | - Shigeki Watanabe
- Department of Radiation-Applied Biology Research, Takasaki Advanced Radiation Research Institute, National Institute of Quantum and Radiological Science and Technology (QST), 1233 Watanuki, Takasaki, Gunma 370-1292, Japan; (I.S.); (N.S.I.)
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Kobayashi T, Nakajima S, Motokawa R, Matsumura D, Saito T, Sasaki T. Structural Approach to Understanding the Solubility of Metal Hydroxides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:7995-8006. [PMID: 31117736 DOI: 10.1021/acs.langmuir.9b01132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We report the hierarchical structure of zirconium hydroxide after aging at different temperatures to elucidate the factors governing zirconium solubility in aqueous solutions. Zirconium hydroxide solid phases after aging at 25, 40, 60, and 90 °C under acidic to alkaline conditions were investigated using extended X-ray absorption fine structure (EXAFS), wide- and small-angle X-ray scattering (WAXS and SAXS), and transmission electron microscopy (TEM) techniques to reveal the bulk and surface structures of the solid phases from the nanoscale to sub-microscale. After aging at 25 °C, the fundamental building unit of the solid phase was considered to be tetrameric and dimeric hydroxide species. These polynuclear species formed amorphous primary particles that are approximately 3 nm in size, which in turn formed aggregates that are hundreds of nanometers in size. This hierarchical structure was found to be stable up to 60 °C under acidic and neutral conditions and up to 40 °C under alkaline conditions. After aging at 90 °C under acidic conditions and at 60 and 90 °C under alkaline conditions, the WAXS and EXAFS measurements suggested the crystallization of the solid phase. The SAXS profiles and TEM observations supported the existence of crystallized large particles about 60 nm in size, and the appearance of the Guinier region in the SAXS profiles indicated that the crystallization of the amorphous primary particles leads to the reduction of the size of the large aggregates. The transformation of the solid-phase structure by temperature was discussed in relation to the solubility product to understand the solubility-limiting solid phase. The solubility of zirconium hydroxide after aging at different temperatures was governed not only by the size of the amorphous primary particles or crystallized large particles but also by their surface configuration.
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Affiliation(s)
- Taishi Kobayashi
- Department of Nuclear Engineering , Kyoto University , Kyotodaigaku-katsura , Nishikyo-ku, Kyoto 615-8540 , Japan
| | - Shogo Nakajima
- Department of Nuclear Engineering , Kyoto University , Kyotodaigaku-katsura , Nishikyo-ku, Kyoto 615-8540 , Japan
| | - Ryuhei Motokawa
- Materials Sciences Research Center , Japan Atomic Energy Agency (JAEA) , Tokai , Ibaraki 319-1195 , Japan
| | - Daiju Matsumura
- Materials Sciences Research Center , Japan Atomic Energy Agency (JAEA) , Tokai , Ibaraki 319-1195 , Japan
| | - Takumi Saito
- Nuclear Professional School, School of Engineering , The University of Tokyo , 2-22 Shirakata Shirane , Tokai-mura , Ibaraki 319-1188 , Japan
| | - Takayuki Sasaki
- Department of Nuclear Engineering , Kyoto University , Kyotodaigaku-katsura , Nishikyo-ku, Kyoto 615-8540 , Japan
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A Thermodynamic Model for ZrO2(am) Solubility at 25 °C in the Ca2+–Na+–H+–Cl−–OH−–H2O System: A Critical Review. J SOLUTION CHEM 2018. [DOI: 10.1007/s10953-018-0766-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Price TW, Greenman J, Stasiuk GJ. Current advances in ligand design for inorganic positron emission tomography tracers 68Ga, 64Cu, 89Zr and 44Sc. Dalton Trans 2018; 45:15702-15724. [PMID: 26865360 DOI: 10.1039/c5dt04706d] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A key part of the development of metal based Positron Emission Tomography probes is the chelation of the radiometal. In this review the recent developments in the chelation of four positron emitting radiometals, 68Ga, 64Cu, 89Zr and 44Sc, are explored. The factors that effect the chelation of each radio metal and the ideal ligand system will be discussed with regards to high in vivo stability, complexation conditions, conjugation to targeting motifs and complexation kinetics. A series of cyclic, cross-bridged and acyclic ligands will be discussed, such as CP256 which forms stable complexes with 68Ga under mild conditions and PCB-TE2A which has been shown to form a highly stable complex with 64Cu. 89Zr and 44Sc have seen significant development in recent years with a number of chelates being applied to each metal - eight coordinate di-macrocyclic terephthalamide ligands were found to rapidly produce more stable complexes with 89Zr than the widely used DFO.
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Affiliation(s)
- Thomas W Price
- School of Biological, Biomedical and Environmental Sciences, The University of Hull, HU6 7RX, UK. and Positron Emission Tomography Research Centre, The University of Hull, HU6 7RX, UK
| | - John Greenman
- School of Biological, Biomedical and Environmental Sciences, The University of Hull, HU6 7RX, UK.
| | - Graeme J Stasiuk
- School of Biological, Biomedical and Environmental Sciences, The University of Hull, HU6 7RX, UK. and Positron Emission Tomography Research Centre, The University of Hull, HU6 7RX, UK
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Solubility of Zr(OH)4(am) and the Formation of Zr(IV) Carbonate Complexes in Carbonate Solutions Containing 0.1–5.0 mol·dm−3 NaNO3. J SOLUTION CHEM 2017. [DOI: 10.1007/s10953-017-0599-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kobayashi T, Teshima T, Sasaki T, Kitamura A. Thermodynamic model for Zr solubility in the presence of gluconic acid and isosaccharinic acid. J NUCL SCI TECHNOL 2016. [DOI: 10.1080/00223131.2016.1255573] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Taishi Kobayashi
- Department of Nuclear Engineering, Kyoto University, Kyoto, Japan
| | - Takeshi Teshima
- Department of Nuclear Engineering, Kyoto University, Kyoto, Japan
| | - Takayuki Sasaki
- Department of Nuclear Engineering, Kyoto University, Kyoto, Japan
| | - Akira Kitamura
- Radionuclide Migration Research Group, Sector of Decommissioning and Radioactive Waste Management, Japan Atomic Energy Agency, Tokai-mura, Japan
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Sasaki T, Takeno Y, Kobayashi T, Kirishima A, Sato N. Leaching behavior of gamma-emitting fission products and Np from neutron-irradiated UO2–ZrO2solid solutions in non-filtered surface seawater. J NUCL SCI TECHNOL 2015. [DOI: 10.1080/00223131.2015.1055315] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Sasaki T, Takeno Y, Kirishima A, Sato N. Leaching test of gamma-emitting Cs, Ru, Zr, and U from neutron-irradiated UO2/ZrO2solid solutions in non-filtered surface seawater. J NUCL SCI TECHNOL 2014. [DOI: 10.1080/00223131.2014.935511] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Gautier C, Coppo M, Caussignac C, Laszak I, Fichet P, Goutelard F. Zr and U determination at trace level in simulated deep groundwater by Q ICP-MS using extraction chromatography. Talanta 2013; 106:1-7. [DOI: 10.1016/j.talanta.2012.12.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Revised: 12/04/2012] [Accepted: 12/08/2012] [Indexed: 10/27/2022]
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KOBAYASHI T, SASAKI T, TAKAGI I, MORIYAMA H. Solubility and Solubility-Limiting Solid Phase in M(IV)-OH-Dicarboxylate Ternary Aqueous System. J NUCL SCI TECHNOL 2011. [DOI: 10.1080/18811248.2011.9711786] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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SASAKI T, NAKAOKA O, ARAKAWA R, KOBAYASHI T, TAKAGI I, MORIYAMA H. Detection of Polynuclear Zirconium Hydroxide Species in Aqueous Solution by Desktop ESI-MS. J NUCL SCI TECHNOL 2010. [DOI: 10.1080/18811248.2010.9720988] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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