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16 results on '"Lydon, John D."'

2. Evaluation of 186WS2 target material for production of high specific activity 186Re via proton irradiation: separation, radiolabeling and recovery/recycling

Author

Charles, Anster, primary, Khosrashahi, Firouzeh Najafi, additional, Ma, Li, additional, Munindradasa, Chathurya, additional, Hoerres, Rebecca, additional, Lydon, John D., additional, Kelley, Steven P., additional, Guthrie, James, additional, Rotsch, David, additional, Medvedev, Dmitri, additional, Cutler, Cathy S., additional, Li, Yawen, additional, Wilbur, D. Scott, additional, Hennkens, Heather M., additional, and Jurisson, Silvia S., additional

Published
2022
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3. Evaluation of 186WS2 target material for production of high specific activity 186Re via proton irradiation: separation, radiolabeling and recovery/recycling.

Author

Charles, Anster, Khosrashahi, Firouzeh Najafi, Ma, Li, Munindradasa, Chathurya, Hoerres, Rebecca, Lydon, John D., Kelley, Steven P., Guthrie, James, Rotsch, David, Medvedev, Dmitri, Cutler, Cathy S., Li, Yawen, Wilbur, D. Scott, Hennkens, Heather M., and Jurisson, Silvia S.

Subjects
RADIOLABELING, PROTON beams, ELECTRON beams, RADIOACTIVE tracers, PROTONS, IRRADIATION, TUNGSTEN, CYCLOTRONS
Abstract

Enriched tungsten disulfide (186WS2) was evaluated at increasing proton beam currents (20–50 μA) and times (up to 4 h) on a GE PETtrace cyclotron for production of high specific activity (HSA) 186Re. The HSA 186Re was separated from the irradiated target as [186Re][ReO4]– by a liquid–liquid extraction method and radiolabeled with a new N2S2 ligand (222-MAMA-N-ethylpropionate). The enriched 186W was recovered from the extraction process, analyzed for purity and enrichment, and converted back to the disulfide (186WS2). The results demonstrate that the 186WS2 is an easily pressed target material that can withstand relatively high currents and can be readily recovered and recycled. The 186Re produced was isolated in high specific activity and readily formed the radiotracers [186Re][ReO(222-MAMA-N-ethylpropionate)] and [186Re][Re(CO)3(OH2)3] +. [ABSTRACT FROM AUTHOR]

Published
2022
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4. Synthesis and characterization of gold(III) tetradentate Schiff Base complexes. X-ray crystal structures of [Au(sal(sub)2pn)Cl.2.5H(sub)2) and [Au(sal(sub)2en)]PF(sub)6

Author

Barnholtz, Steven L., Lydon, John D., Huang, Gloria, Venkatesh, Meera, Barnes, Charles L., Ketring, Alan R., and Jurisson, Silvia S.

Subjects
Gold compounds -- Analysis, Inorganic compounds -- Synthesis, Schiff bases -- Analysis, Crystals -- Structure, Chemistry
Abstract

Research describes a new methodology for the synthesis of [Au(sal(sub)2pn)X and [Au(sal(sub)2en)]PF(sub)6 gold(III) complexes. Results indicate that the procedure is amenable for the synthesis of gold(III) complexes with other ligands, even at the radiotracer level.

Published
2001

5. Potential technetium small molecule radiopharmaceuticals

Author

Jurisson, Silvia S. and Lydon, John D.

Subjects
Inorganic compounds, Technetium, Radiopharmaceuticals -- Research, Chemistry
Abstract

Researchers continue to develop the perfect technetium-based radiopharmaceutical. Technetium-99m is used in 85% of all diagnostic scans done in hospitals.

Published
1999

6. Evaluation of 186WS2target material for production of high specific activity 186Re via proton irradiation: separation, radiolabeling and recovery/recycling

Author

Charles, Anster, Khosrashahi, Firouzeh Najafi, Ma, Li, Munindradasa, Chathurya, Hoerres, Rebecca, Lydon, John D., Kelley, Steven P., Guthrie, James, Rotsch, David, Medvedev, Dmitri, Cutler, Cathy S., Li, Yawen, Wilbur, D. Scott, Hennkens, Heather M., and Jurisson, Silvia S.

Abstract

Enriched tungsten disulfide (186WS2) was evaluated at increasing proton beam currents (20–50 μA) and times (up to 4 h) on a GE PETtrace cyclotron for production of high specific activity (HSA) 186Re. The HSA 186Re was separated from the irradiated target as [186Re][ReO4]–by a liquid–liquid extraction method and radiolabeled with a new N2S2ligand (222-MAMA-N-ethylpropionate). The enriched 186W was recovered from the extraction process, analyzed for purity and enrichment, and converted back to the disulfide (186WS2). The results demonstrate that the 186WS2is an easily pressed target material that can withstand relatively high currents and can be readily recovered and recycled. The 186Re produced was isolated in high specific activity and readily formed the radiotracers [186Re][ReO(222-MAMA-N-ethylpropionate)] and [186Re][Re(CO)3(OH2)3] +.

Published
2022
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7. Synthesis and characterization of novel rhenium (V) tetradenate N(sub 2)O(sub 2) Schiff base monomer and Dimer complexes

Author

Benny, Paul D., Barnes, Charles L., Piekarski, Pamela M., Lydon, John D., and Jurrison, Silivia S.

Subjects
Crystallography -- Usage, Rhenium -- Analysis, Rhenium -- Chemical properties, Chemistry
Abstract

Several rhenium (V) oxo complexes with tetradenate N(sub 2)O(sub 2) Schiff base ligands were synthesized and characterized. The crystallographic data for the structures is reported.

Published
2003

15. Energy transfer vs. electron transfer in the excited-state quenching of tris(2,2'-bipyridine-N,N')ruthenium(II) complexes by cobalt(III) cage complexes: applications to the photoreduction of water

Author

Creaser, Inge I., primary, Gahan, Lawrence R., additional, Geue, Rodney J., additional, Launikonis, Anton, additional, Lay, Peter A., additional, Lydon, John D., additional, McCarthy, Mark G., additional, Mau, Albert W. H., additional, Sargeson, Alan M., additional, and Sasse, Wolfgang H. F., additional

Published
1985
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