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Lu-177 preparation for radiotherapy application.

Ul Jae Park1, Jun-Sig Lee2, Kang Hyuk Choi2

  • 1Korea Atomic Energy Research Institute, Dukjin-dong, Yuseong-gu, Daejeon 34057, Republic of Korea; Instrumental Analysis Laboratory, Department of Chemistry, Dongguk University, Seoul 04620, Republic of Korea.

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
|June 14, 2016
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Summary

Researchers developed a novel organo-ceramic material for efficiently separating lutetium-177 (177Lu) from ytterbium-176 (176Yb) targets. This method enhances the production of 177Lu for targeted cancer therapies.

Keywords:
Chelate adsorbentHANAROLutetium-177Organo-ceramic hybrid material

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Area of Science:

  • Nuclear Chemistry
  • Radiochemistry
  • Materials Science

Background:

  • Lutetium-177 (177Lu) is a crucial beta-emitting nuclide for radioimmunotherapy and lesion treatment.
  • Efficient separation of 177Lu from its precursor, ytterbium-176 (176Yb), is essential for therapeutic applications.

Purpose of the Study:

  • To develop and optimize a separation method for producing no-carrier-added (nca) 177Lu from neutron-irradiated 176Yb targets.
  • To evaluate a novel organo-ceramic hybrid material for selective Lu/Yb separation.

Main Methods:

  • Synthesis of an organo-ceramic hybrid material containing phosphate groups (Sol-POS).
  • Batch experiments to determine adsorption behavior and separation factors.
  • Column experiments using extraction chromatography for 177Lu separation from an enriched 176Yb target.

Main Results:

  • The developed Sol-POS material demonstrated good selectivity for Lu over Yb.
  • A separation factor of 1.6 was achieved at 0.5M HCl in batch experiments.
  • Extraction chromatography yielded approximately 78% separation yield for nca 177Lu from a 5mg 176Yb target.

Conclusions:

  • The organo-ceramic hybrid material shows promise for the efficient separation of 177Lu.
  • The developed method provides a viable route for producing nca 177Lu.
  • Further purification steps may be necessary for curie-level production of 177Lu.