Production, radiochemical separation and electrochemical concentration of No-carrier-added 52Mn: An emerging PET radiometal
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View abstract on PubMed
Summary
This summary is machine-generated.We developed a new method to produce manganese-52 (52Mn), a radiometal for PET imaging. This efficient process yields high-purity 52Mn suitable for creating radiopharmaceuticals for cancer detection.
Area Of Science
- Nuclear Medicine
- Radiochemistry
- Medical Imaging
Background
- Manganese-52 (52Mn) is a promising radiometal for Positron Emission Tomography (PET) cancer imaging due to its suitable half-life (5.6 days).
- Efficient production and purification methods are crucial for its clinical application.
Purpose Of The Study
- To develop an efficient method for producing no-carrier-added (nca) 52Mn.
- To establish a radiochemical separation process for high-purity 52Mn suitable for radiopharmaceutical development.
- To demonstrate the utility of the produced 52Mn in radiopharmaceutical preparation.
Main Methods
- Production of 52Mn via the 52Cr(p, n)52Mn reaction using a metallic chromium target.
- Radiochemical separation involving selective precipitation of chromium and electrochemical purification of 52Mn.
- Preparation and stability assessment of a model radiopharmaceutical, [52Mn]Mn-DOTA-E[c(RGDfK)]2.
Main Results
- The developed method achieved an overall radiochemical separation yield of >75%.
- Separated 52Mn exhibited high radionuclidic purity (>99.5%) and radiochemical purity (>97%).
- The apparent molar activity was 2.2 ± 0.1 MBq/nmol, suitable for radiopharmaceutical synthesis. The model radiopharmaceutical was prepared with a 98.8 ± 0.4% radiolabeling yield and showed stability for 7 days.
Conclusions
- The described strategy provides a viable method for obtaining nca 52Mn.
- This approach ensures high purity and suitable activity for radiopharmaceutical preparation.
- The findings may enhance the clinical availability of 52Mn for PET imaging.
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