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Abdou MM, Gizawy MA, Shamsel-Din HA. Green synthesis, radioiodination and in vivo biodistribution of 5-(2-hydroxyphenyl)-2,4-dihydro-3H-pyrazol-3-one derivatives as potential candidates for lung imaging. Appl Radiat Isot 2024; 203:111096. [PMID: 37949012 DOI: 10.1016/j.apradiso.2023.111096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/19/2023] [Accepted: 10/26/2023] [Indexed: 11/12/2023]
Abstract
Lung targeting was developed by synthesising pyrazolone derivatives 6a-f under solvent-free and thermal conditions by reacting azo coumarins 4a-c with hydrazines 5a and b using maltose as a biodegradable catalyst. Different spectral data characterized the synthesized agents as proton-NMR, FT-IR, and mass spectra. Direct radioiodination with iodine-131 was performed and optimized to reach the highest radiochemical purities (92 ± 0.47 to 98 ± 0.21%) using chloramine-T, a moderate oxidizing agent. The 131I-pyrazolone derivatives were confirmed based on HRMS. Furthermore, radioiodinated nitro-derivatives accumulated well in the lung of normal mice during in vivo evaluation, and the better uptake was for nitrophenyl-derivative 7f, about 30.06 ± 0.04% at 30 min after injection. Consequently, synthesized radioiodinated derivatives may be employed as prospective tracers for lung perfusion scans.
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Affiliation(s)
- Moaz M Abdou
- Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt
| | - Mohamed A Gizawy
- Labeled Compounds Department, Hot Labs Center, Egyptian Atomic Energy Authority, 13759, Cairo, Egypt
| | - Hesham A Shamsel-Din
- Labeled Compounds Department, Hot Labs Center, Egyptian Atomic Energy Authority, 13759, Cairo, Egypt.
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2
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Novikov AP, Zagidullin KA, Volkov MA, German KE, Nevolin IM, Grigoriev MS. Influence of the organic cation on the formation of hexahalotechnetates: X-ray, thermal and comparative analyses of non-covalent interactions. Dalton Trans 2023; 52:17538-17547. [PMID: 37962484 DOI: 10.1039/d3dt03235c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
In this work, we have reviewed non-covalent interactions in technetium hexahalide compounds and obtained eight new compounds of the CatnTcHal6 type, where Cat = dimethylammonium, tetramethylammonium, caffeinium, benzothiazolium, nicotinamidium, and pyrazolium, and Hal = Cl, Br. SCXRD studies were carried out for new compounds. In some compounds, halide anions and/or crystallization water were present. In the compounds obtained, an essential influence on the formation of structures and crystal packing is exerted by the molecules of crystallization water and halide ions. Diethylammonium and nicotinamidium compounds, whose structures do not contain other ions and contain sufficiently strong non-covalent interactions, best bind hexahalotechnetates. π-Stacking interactions, anion-π interactions, and halogen bonds were found in the structures. The percentage contribution of the H⋯Hal/Hal⋯H interactions in the transition from fluorine to bromine in TcHal62- anions decreases, while the contribution of interactions of other types increases. The greatest variety of interactions in anions is observed for compounds of caffeinium and nicotinamidium with TcBr62-. The paper considers the processes of thermolysis of some new and previously known CatnTcHal6 compounds with various cations. It is shown that the thermal stability of the compounds is only due to the properties of the organic cation and does not depend on the nature of the halogen. The proposed stages of the process of thermolysis of the TcHal62- anion, accompanied by the reduction of technetium to metal, have been established.
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Affiliation(s)
- Anton P Novikov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences (IPCE RAS), 31 Bldg 4, Leninsky prosp., Moscow, 119071, Russian Federation.
| | - Karim A Zagidullin
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences (IPCE RAS), 31 Bldg 4, Leninsky prosp., Moscow, 119071, Russian Federation.
| | - Mikhail A Volkov
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences (IPCE RAS), 31 Bldg 4, Leninsky prosp., Moscow, 119071, Russian Federation.
| | - Konstantin E German
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences (IPCE RAS), 31 Bldg 4, Leninsky prosp., Moscow, 119071, Russian Federation.
| | - Iurii M Nevolin
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences (IPCE RAS), 31 Bldg 4, Leninsky prosp., Moscow, 119071, Russian Federation.
| | - Mikhail S Grigoriev
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences (IPCE RAS), 31 Bldg 4, Leninsky prosp., Moscow, 119071, Russian Federation.
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3
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Lung Cancer-Targeted [131I]-Iodoshikonin as Theranostic Agent: Radiolabeling, In Vivo Pharmacokinetics and Biodistribution. Pharm Chem J 2022. [DOI: 10.1007/s11094-022-02553-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Shegani A, Ischyropoulou M, Roupa I, Kiritsis C, Makrypidi K, Papasavva A, Raptopoulou C, Psycharis V, Hennkens HM, Pelecanou M, Papadopoulos MS, Pirmettis I. Synthesis and evaluation of new mixed "2 + 1" Re, 99mTc and 186Re tricarbonyl dithiocarbamate complexes with different monodentate ligands. Bioorg Med Chem 2021; 47:116373. [PMID: 34467870 DOI: 10.1016/j.bmc.2021.116373] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/09/2021] [Accepted: 08/10/2021] [Indexed: 11/24/2022]
Abstract
A series of "2 + 1" mixed ligand tricarbonyl complexes of the general formula fac-[Re/99mTc/186Re(CO)3(DDTC)(L)] containing diethyldithiocarbamate (DDTC) as a monoanionic bidentate ligand and a series of monodentate ligands L was synthesized, characterized and evaluated. The impact of ligand L on the radiochemical yield (RCY) and biodistribution of the final compounds was also investigated. DDTC and the appropriate L ligand [cyclohexyl isocyanide (cisc), tert-butyl isocyanide (tbi), triphenylphosphine (PPh3), methyldiphenylphosphine (PPh2Me), triphenylarsine (AsPh3), imidazole (im), and 4-aminopyridine (4AP)] readily reacted in equimolar amounts with the [Et4N]2[Re(CO)3Br3] precursor to afford fac-[Re(CO)3(DDTC)(cisc)], Re1, fac-[Re(CO)3(DDTC)(tbi)], Re2, fac-[Re(CO)3(DDTC)(PPh3)], Re3, fac-[Re(CO)3(DDTC)(PPh2Me)], Re4, fac-[Re(CO)3(DDTC)(AsPh3)], Re5, fac-[Re(CO)3(DDTC)(im)], Re6 and fac-[Re(CO)3(DDTC)(4AP)], Re7, complexes in high yields (>80%). All Re complexes were fully characterized by IR, NMR, and in addition Re4, Re5, and Re7 with X-ray crystallography. Analogous reactions as performed with Re were subsequently explored on the 99mTc and 186Re-tracer levels using the corresponding fac-[99mTc/186Re(CO)3(H2O)3]+ precursor. Complexes 99mTc1 - 99mTc5, 186Re1 and 186Re3 were obtained in high radiochemical yield (>91%), while the complexes 99mTc6, 99mTc7 and 186Re7 formed with radiochemical yields of 55%, 28%, and 75%, respectively. The 99mTc and 186Re-complexes were characterized by comparative HPLC analysis using the analogous Re complexes. During histidine and cysteine challenge experiments at 37 °C through 6 h, complexes 99mTc1 - 99mTc5 remained > 92% stable, while complexes 99mTc6 and 99mTc7 remained only 8% stable through 3 h. Similar studies for 186Re-complexes showed that 186Re1 and 186Re3 remained > 95% stable for up to 48 h, while 186Re7 had decreased to 7% after 3 h. LogD7.4 data of 99mTc1 - 99mTc5, 186Re1, and 186Re3 complexes, which ranged from 2.59 to 3.39, suggested high lipophilicity. Biodistribution studies in healthy Swiss albino mice showed hepatobiliary excretion for 99mTc1, 99mTc2, and 99mTc4, fast blood clearance for 99mTc4, while high liver uptake and retention for 99mTc3 and 99mTc5 were measured. Moreover, 99mTc2 showed high accumulation in the lungs with sustained retention (52.80% ID/g at 4 h p.i.) and significant brain uptake at 2 min p.i. (1.89% ID/g). The study showed the great influence of monodentate ligand in the synthesis and biodistribution of the mixed ligand complexes.
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Affiliation(s)
- Antonio Shegani
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece; Research Reactor Center, University of Missouri, Columbia, MO 65211, United States
| | - Myrto Ischyropoulou
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Ioanna Roupa
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Christos Kiritsis
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Konstantina Makrypidi
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Afroditi Papasavva
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Catherine Raptopoulou
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Vassilis Psycharis
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Heather M Hennkens
- Research Reactor Center, University of Missouri, Columbia, MO 65211, United States; Department of Chemistry, University of Missouri, Columbia, MO 65211, United States
| | - Maria Pelecanou
- Institute of Biosciences & Applications, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Minas S Papadopoulos
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece
| | - Ioannis Pirmettis
- Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research "Demokritos", 15310 Athens, Greece.
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Wittwer Y, Eichler R, Zingg R, Herrmann D, Türler A. The influence of gas purification and addition of macro amounts of metal-carbonyl complexes on the formation of single-atom metal-carbonyl-complexes. RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2020-0036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Using the Fast On-line Reaction Apparatus (FORA), the influence of various gas-purification columns onto the formation of metal carbonyl complexes (MCCs) under single-atom chemistry conditions was investigated. MCCs were synthesized from single atoms of Mo, Tc, Ru and Rh being produced by the spontaneous fission of 252Cf and recoiling into a CO-gas containing carrier gas atmosphere. The in-situ synthesized MCCs were volatile enough to be transported by the carrier gas to a charcoal trap where they were adsorbed and their subsequent decay was registered by γ-spectrometry. It was found that the type and combination of purification columns used to clean the applied CO-gas strongly influences the obtained formation and transport yields for all MCCs. With the exception of Rh-carbonyl, intense gas-purification strategies resulted in reduced formation and transport yields for MCCs in comparison with less efficient or even completely missing purification setups. It was postulated that the observed reduction in yield might depend on the content of Fe(CO)5 and Ni(CO)4, as well as potentially other MCCs, in the CO-gas, being formed by the interaction between CO and the steel-surfaces of FORA as well as from impurities in the used charcoal traps. Subsequently, it was shown that macro amounts of Fe(CO)5, Ni(CO)4, Mo(CO)6 and Re2(CO)10 added to the used process gas indeed increase significantly the overall yields for MCCs produced by 252Cf fission products. Ni(CO)4 appeared the most potent to increase the yield. Therefore, it was used in more detailed investigations. Using isothermal chromatography, it was shown that Ni(CO)4 does not affect the speciation of carbonyl species produced by the 252Cf fission product 104Mo. For 107Tc, 110Ru and 111Rh a speciation change cannot be excluded. For 111Rh a speciation change cannot be excluded. An inter-carbonyl transfer mechanism is suggested boosting the formation of MCCs. The current discovery might allow for new opportunities in various research fields, which are currently restricted by the low overall yields for MCCs produced under single-atom chemistry conditions. Examples are the chemical investigation of transactinides or the generation of radioactive ion beams from refractory metals at accelerators.
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Affiliation(s)
- Yves Wittwer
- Paul Scherrer Institute , Villigen , Switzerland
- University of Bern , Bern , Switzerland
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6
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Sidorenko GV, Miroslavov AE. Higher Technetium(I) Carbonyls and Possibility of Using Them in Nuclear Medicine: Problems and Prospects. RADIOCHEMISTRY 2021. [DOI: 10.1134/s1066362221030012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Wittwer Y, Eichler R, Herrmann D, Türler A. The influence of physical parameters on the in-situ metal carbonyl complex formation studied with the Fast On-line Reaction Apparatus (FORA). RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2020-0035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The Fast On-line Reaction Apparatus (FORA) was used to investigate the influence of various reaction parameters onto the formation and transport of metal carbonyl complexes (MCCs) under single-atom chemistry conditions. FORA is based on a 252Cf-source producing short-lived Mo, Tc, Ru and Rh isotopes. Those are recoiling from the spontaneous fission source into a reaction chamber flushed with a gas-mixture containing CO. Upon contact with CO, fission products form volatile MCCs which are further transported by the gas stream to the detection setup, consisting of a charcoal trap mounted in front of a HPGe γ-detector. Depending on the reaction conditions, MCCs are formed and transported with different efficiencies. Using this setup, the impact of varying physical parameters like gas flow, gas pressure, kinetic energy of fission products upon entering the reaction chamber and temperature of the reaction chamber on the formation and transport yields of MCCs was investigated. Using a setup similar to FORA called Miss Piggy, various gas mixtures of CO with a selection of noble gases, as well as N2 and H2, were investigated with respect to their effect onto MCC formation and transport. Based on this measurements, optimized reaction conditions to maximize the synthesis and transport of MCCs are suggested. Explanations for the observed results supported by simulations are suggested as well.
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Affiliation(s)
- Yves Wittwer
- Paul Scherrer Institute , Villigen , Switzerland
- University of Bern , Bern , Switzerland
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8
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The influence of chemical parameters on the in-situ metal carbonyl complex formation studied with the fast on-line reaction apparatus (FORA). RADIOCHIM ACTA 2021. [DOI: 10.1515/ract-2020-0031] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A new setup named Fast On-line Reaction Apparatus (FORA) is presented which allows for the efficient investigation and optimization of metal carbonyl complex (MCC) formation reactions under various reaction conditions. The setup contains a 252Cf-source producing short-lived Mo, Tc, Ru and Rh isotopes at a rate of a few atoms per second by its 3% spontaneous fission decay branch. Those atoms are transformed within FORA in-situ into volatile metal carbonyl complexes (MCCs) by using CO-containing carrier gases. Here, the design, operation and performance of FORA is discussed, revealing it as a suitable setup for performing single-atom chemistry studies. The influence of various gas-additives, such as CO2, CH4, H2, Ar, O2, H2O and ambient air, on the formation and transport of MCCs was investigated. O2, H2O and air were found to harm the formation and transport of MCCs in FORA, with H2O being the most severe. An exception is Tc, for which about 130 ppmv of H2O caused an increased production and transport of volatile compounds. The other gas-additives were not influencing the formation and transport efficiency of MCCs. Using an older setup called Miss Piggy based on a similar working principle as FORA, it was additionally investigated if gas-additives are mostly affecting the formation or only the transport stability of MCCs. It was found that mostly formation is impacted, as MCCs appear to be much less sensitive to reacting with gas-additives in comparison to the bare Mo, Tc, Ru and Rh atoms.
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9
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10
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Sanad HM, Ibrahim AA. Radioiodination, diagnostic nuclear imaging and bioevaluation of olmesartan as a tracer for cardiac imaging. RADIOCHIM ACTA 2018. [DOI: 10.1515/ract-2018-2960] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Abstract
The present work has been oriented to prepare radioiodinated olmesartan for a potential cardiac imaging. Olmesartan has been labeled using 125I or 131I with N-bromosuccinimide (NBS) as an oxidizing agent. Many factors like amount of N-bromosuccinimide, amount of substrate, pH, reaction temperature and reaction time, have been systematically studied to optimize high yield of [125I]iodoolmesartan. The biological distribution indicates the suitability of [125I]iodoolmesartan as a novel tracer to image heart.
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Affiliation(s)
- H. M. Sanad
- Labelled Compounds Department, Radioisotopes Production and Radioactive Sources Division , Hot Laboratories Center, Atomic Energy Authority , P.O. Box 13759 , Cairo , Egypt
| | - Alhussein A. Ibrahim
- Applied Organic Chemistry Department, Organic Chemical Industries Division , National Research Center , Cairo 12622 , Egypt
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11
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99mTc-hexoprenaline and 131I-dapoxetine: preparation, in silico modeling and biological evaluation as promising lung scintigraphy radiopharmaceuticals. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5500-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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12
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Sidorenko GV, Maltsev DA, Miroslavov AE, Stepanova ES, Tyupina MY, Lumpov AA, Suglobov DN. Specific features of the cis labilization effect in the series of pentacarbonyltechnetium halides. RADIOCHEMISTRY 2017. [DOI: 10.1134/s1066362217030055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Reactivity of higher technetium carbonyls in CO replacement: A quantum chemical analysis. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2016.08.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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99mTc-zolmitriptan: radiolabeling, molecular modeling, biodistribution and gamma scintigraphy as a hopeful radiopharmaceutical for lung nuclear imaging. Radiol Med 2016; 121:935-943. [DOI: 10.1007/s11547-016-0677-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 08/16/2016] [Indexed: 12/18/2022]
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15
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Mal’tsev DA, Baranovskii VI. Application of discrete-continuum solvation model in a quantum chemical study of technetium(I) pentacarbonyl bromide decarbonylation. J STRUCT CHEM+ 2014. [DOI: 10.1134/s0022476614050035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Swidan MM, Sakr TM, Motaleb MA, Abd El-Bary A, El-Kolaly MT. Preliminary assessment of radioiodinated fenoterol and reproterol as potential scintigraphic agents for lung imaging. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3328-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Synthesis, radioiodination and in vivo evaluation of ethyl 1,4-dihydro-7-iodo-4-oxoquinoline-3-carboxylate as a potential pulmonary perfusion scintigraphic radiopharmaceutical. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3299-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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18
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Sakr TM. Synthesis and preliminary affinity testing of 123I/125I-N-(3-iodophenyl)-2-methylpyrimidine-4,6-diamine as a novel potential lung scintigraphic agent. RADIOCHEMISTRY 2014. [DOI: 10.1134/s1066362214020131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Ibrahim IT, El-Kolaly MT, El-Ghareb WI, Abd El-Bary A. Preparation of radioiodinated bambuterol hydrochloride as beta receptors imaging agent. RADIOCHEMISTRY 2013; 55:527-531. [DOI: 10.1134/s1066362213050135] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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22
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Synthesis and radioiodination of new dipeptide coupled with biologically active pyridine moiety. J Radioanal Nucl Chem 2013. [DOI: 10.1007/s10967-012-2289-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Reaction of technetium hexacarbonyl cation with acetonitrile: Kinetics, product structure, DFT calculations. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.08.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Even J, Yakushev A, Düllmann CE, Dvorak J, Eichler R, Gothe O, Hild D, Jäger E, Khuyagbaatar J, Kratz JV, Krier J, Niewisch L, Nitsche H, Pysmenetska I, Schädel M, Schausten B, Türler A, Wiehl N, Wittwer D. Rapid Synthesis of Radioactive Transition-Metal Carbonyl Complexes at Ambient Conditions. Inorg Chem 2012; 51:6431-3. [DOI: 10.1021/ic300305m] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Julia Even
- Institute for Nuclear
Chemistry, Johannes Gutenberg University Mainz, D-55099 Mainz, Germany
- SHE Chemistry Research Section, Helmholtz Institute Mainz, D-55099 Mainz, Germany
| | - Alexander Yakushev
- SHE Chemistry Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt,
Germany
| | - Christoph E. Düllmann
- Institute for Nuclear
Chemistry, Johannes Gutenberg University Mainz, D-55099 Mainz, Germany
- SHE Chemistry Research Section, Helmholtz Institute Mainz, D-55099 Mainz, Germany
- SHE Chemistry Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt,
Germany
| | - Jan Dvorak
- SHE Chemistry Research Section, Helmholtz Institute Mainz, D-55099 Mainz, Germany
| | - Robert Eichler
- Laboratory for
Radio- and Environmental
Chemistry, Paul Scherrer Institute, CH-5232
Villigen PSI, Switzerland
| | - Oliver Gothe
- Department of Chemistry, University of California at Berkeley, California 94720-1460, United
States
| | - Daniel Hild
- Institute for Nuclear
Chemistry, Johannes Gutenberg University Mainz, D-55099 Mainz, Germany
| | - Egon Jäger
- SHE Chemistry Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt,
Germany
| | - Jadambaa Khuyagbaatar
- SHE Chemistry Research Section, Helmholtz Institute Mainz, D-55099 Mainz, Germany
- SHE Chemistry Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt,
Germany
| | - Jens V. Kratz
- Institute for Nuclear
Chemistry, Johannes Gutenberg University Mainz, D-55099 Mainz, Germany
| | - Jörg Krier
- SHE Chemistry Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt,
Germany
| | - Lorenz Niewisch
- Institute for Nuclear
Chemistry, Johannes Gutenberg University Mainz, D-55099 Mainz, Germany
| | - Heino Nitsche
- Department of Chemistry, University of California at Berkeley, California 94720-1460, United
States
| | - Inna Pysmenetska
- Institute for Nuclear
Chemistry, Johannes Gutenberg University Mainz, D-55099 Mainz, Germany
- SHE Chemistry Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt,
Germany
| | - Matthias Schädel
- SHE Chemistry Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt,
Germany
- Advanced Science
Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195,
Japan
| | - Brigitta Schausten
- SHE Chemistry Department, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt,
Germany
| | - Andreas Türler
- Laboratory for
Radio- and Environmental
Chemistry, Paul Scherrer Institute, CH-5232
Villigen PSI, Switzerland
- Department of Chemistry
and Biochemistry, University of Berne, CH-3012 Berne, Switzerland
| | - Norbert Wiehl
- Institute for Nuclear
Chemistry, Johannes Gutenberg University Mainz, D-55099 Mainz, Germany
| | - David Wittwer
- Laboratory for
Radio- and Environmental
Chemistry, Paul Scherrer Institute, CH-5232
Villigen PSI, Switzerland
- Department of Chemistry
and Biochemistry, University of Berne, CH-3012 Berne, Switzerland
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25
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Yang Y, Song H, Song H, Zhao W, Pu M. Preparation of 99mTc(CO)3-TPPS4 and its biological behavior evaluation. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424611003240] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
99mTc(CO)3-TPPS4 was prepared via the precursor [99mTc(CO)3(H2O)3]+ and a preliminary investigation on its stability and behavior in Hep2 tumor cells and hepatoma-bearing mice were conducted. Labeling yield and stability of 99mTc(CO)3-TPPS4 was radioactively analyzed by paper chromatography. Hep2 tumor cells were incubated with 99mTc(CO)3-TPPS4 complex system in the substrate and isolated from the substrate for radioactivity count. Then 99mTc(CO)3-TPPS4 complex system was intravenously injected in hepatoma-bearing mice and directly injected in tumor tissue of the mice. Mice were photographed using SPECT. Labeling yields of 99mTc(CO)3-TPPS4 were more than 90% at pH = 7–8, 30 min, in a boiling bath, and it was stable for at least 14 h at pH = 2–8, rt ~95 °C. The uptake of 99mTc(CO)3-TPPS4 in HepG2 tumor cells was only 3–4% with the maximum uptake-time of 20 min. The SPECT images of hepatoma-bearing nude mice showed no uptake or little retention of 99mTc(CO)3-TPPS4 in the tumor tissue. Then the differences between 99mTc(CO)3-TPPS4 and TPPS4 were analyzed by fluoroscopy and molecular structure. It was found that the paper chromatography, HepG2 tumor cell uptake and the optimized porphyrin ring conformation of 99mTc(CO)3-TPPS4 were quite different from those of TPPS4. It was indicated that 99mTc(CO)3-TPPS4 had no uptake or little retention in hepatic tumors, unlike those biological behaviors of TPPS4. This may be due to the modification of porphyrin ring conformation of TPPS4 by 99mTc(CO)3 core.
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Affiliation(s)
- Yuqing Yang
- Institute of Nuclear Physics and Chemistry, Mianyang, Sichuan 621900, China
| | - Hu Song
- Institute of Nuclear Physics and Chemistry, Mianyang, Sichuan 621900, China
| | - Hongtao Song
- Institute of Nuclear Physics and Chemistry, Mianyang, Sichuan 621900, China
| | - Weiwei Zhao
- Department of Nuclear Medicine, Sichuan University, Chengdu, Sichuan 610041, China
| | - Manfei Pu
- Institute of Nuclear Physics and Chemistry, Mianyang, Sichuan 621900, China
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Radioiodinated paroxetine, a novel potential radiopharmaceutical for lung perfusion scan. J Radioanal Nucl Chem 2011. [DOI: 10.1007/s10967-011-1499-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Sidorenko GV. Volatile technetium carbonyl compounds: Vaporization and thermal decomposition. RADIOCHEMISTRY 2010. [DOI: 10.1134/s1066362210060159] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Häfeli UO, Saatchi K, Elischer P, Misri R, Bokharaei M, Labiris NR, Stoeber B. Lung perfusion imaging with monosized biodegradable microspheres. Biomacromolecules 2010; 11:561-7. [PMID: 20143805 DOI: 10.1021/bm9010722] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
After intravenous injection, particles larger than red blood cells will be trapped in the first capillary bed that they encounter. This is the principle of lung perfusion imaging in nuclear medicine, where macroaggregated albumin (MAA) is radiolabeled with (99m)Tc, infused into a patient's arm vein, and then imaged with gamma scintigraphy. Our aim was to evaluate if monosized microspheres could replace (99m)Tc-MAA. Biodegradable poly(L-lactide) microspheres containing chelating bis(picolylamine) end groups were prepared by a flow focusing method on a microfluidic glass chip and were of highly homogeneous size (9.0 +/- 0.4 microm). The microspheres were radiolabeled with [(99m)Tc(H(2)O)(3)(CO)(3)](+) and then evaluated in mice for lung perfusion imaging. Fifteen minutes after injection, 79.6 +/- 3.8% of the injected activity was trapped in the lungs of mice. Monosized biodegradable radioactive microspheres are, thus, appropriate lung perfusion imaging agents. Other sizes of these highly uniform microspheres have the potential to improve diagnostic and therapeutic approaches in diverse areas of medicine.
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Affiliation(s)
- Urs O Häfeli
- Faculty of Pharmaceutical Sciences and Department of Mechanical Engineering, The University of British Columbia, Vancouver, British Columbia, Canada.
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Lacoeuille F, Hindré F, Denizot B, Bouchet F, Legras P, Couturier O, Askiénazy S, Benoit JP, Le Jeune JJ. New starch-based radiotracer for lung perfusion scintigraphy. Eur J Nucl Med Mol Imaging 2009; 37:146-55. [DOI: 10.1007/s00259-009-1226-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Accepted: 07/06/2009] [Indexed: 11/30/2022]
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