Targeted alpha therapy (TAT) is an area of research with rapidly increasing importance as the emitted alpha particle has a significant effect on inducing cytotoxic effects on tumor cells while mitigating dose to normal tissues. Two significant isotopes of interest within the area of TAT are thorium-227 and actinium-225 due to their nuclear characteristics. Both isotopes have physical half-lives suitable for coordination with larger biomolecules, and additionally actinium-225 has potential to serve as an in vivo generator. In this review, the authors will discuss the production, purification, labeling reactions, and biological studies of actinium-225 and thorium-227 complexes and clinical studies.
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http://dx.doi.org/10.1016/j.nucmedbio.2020.08.004 | DOI Listing |
J Med Chem
March 2025
Central Institute of Isotope Science, Hokkaido University, Sapporo 060-0815, Japan.
For targeted radionuclide therapy, radioligands that exhibit high and persistent tumor uptake are indispensable. We previously synthesized a Tc-labeled hexavalent RGD peptide (Tc-(RGD)) as a tumor imaging agent targeting integrin αvβ3. Tc-(RGD) showed high in vivo tumor uptake with long retention due to simultaneous binding to multiple integrin αvβ3 receptors.
View Article and Find Full Text PDFJ Nucl Med
March 2025
Department of Pharmacology, Weill Cornell Graduate School, New York, New York;
Cerenkov (or Cherenkov) luminescence occurs when charged particles exceed the phase velocity of a given medium. Cerenkov as a modality has gained interest for visualization of numerous radionuclides. However, reported Cerenkov intensities are limited or provided as theoretic fluence estimates.
View Article and Find Full Text PDFNucl Med Biol
March 2025
Department of Chemistry, University of British Columbia, Vancouver, Canada; Life Sciences Division, TRIUMF, Vancouver, Canada. Electronic address:
Due to the growing interest of International Atomic Energy Agency (IAEA) Member States in implementing targeted radionuclide therapy (TRT) in general, the demand for alpha-emitting radionuclides and radiopharmaceuticals is enormous. As an international platform for peaceful applications of radionuclides, the IAEA has been implementing several activities focusing on the production and quality control of alpha emitters and radiopharmaceuticals as well as capacity building in the field, through Technical Meetings, Workshops, Publications and Conference Supports, IAEA-Coordinated Research Projects (CRP) and Technical Cooperation Program (TC). This review article summarises the IAEA activities on the production and quality control of alpha emitter radiopharmaceuticals for targeted alpha therapy (TAT) and a roadmap to future steps including but not limited to the ongoing CRP on Ac-radiopharmaceuticals.
View Article and Find Full Text PDFACS Appl Mater Interfaces
March 2025
Department of Electronic Engineering, Hanyang University, Seoul 04763, South Korea.
While amorphous indium gallium zinc oxide (α-IGZO) thin film transistors (TFTs) are practical alternatives to silicon-based TFTs, their field-effect mobility (∼50 cm/(V s), depending on deposition conditions) remains insufficient to meet the growing demands of high-resolution active-matrix organic light-emitting diode (AMOLED) displays. The need for high-performance oxide TFTs with mobility ≥100 cm/(V s) has become critical to meet the evolving display industry's requirements. This study explored the development of high-mobility hexagonal homologous compound (HC) indium zinc tin oxide (IZTO) TFTs as an alternative to α-IGZO TFTs.
View Article and Find Full Text PDFJ Agric Food Chem
March 2025
College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471000, China.
is one of the most serious pests attacking tobacco around the world. is widely used as a trap crop in the fields of in China. However, the chemical and molecular bases guiding recognition in are still unknown.
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