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Fast synthesis of [11C]raclopride, a positron emission tomography radiotracer, on a microfluidic chip

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

[11C]Raclopride ([11C]Rac) is a radiotracer compound used in positron emission tomography (PET) to study the dopamine receptor concentration in vivo. Synthesis process of the compound currently takes between 25-50 minutes, resulting in a substantial decay of the C-11 radionuclide, since it has a half-life of 20.4 min. In this investigation we study the radiolabeling process of desmethyl raclopride (DMR), the precursor compound to make this radiotracer on a microfluidic chip. Initially the un-labeled synthesis ("cold" synthesis) process was optimized on the microfluidic chip. Then the optimal conditions were used to synthesize the radiolabeled compound ("hot" synthesis). Using this microfluidic device we were able to reduce the reaction time to 1/5th and the amount of the precursor compound to 1/10th of that of the conventional synthesis. The yields for the cold synthesis were higher than those for the hot synthesis, and hence the reaction kinetics and stiochiometry need to be considered dered in order to optimize the hot synthesis process. © 2009 CBMS.
Original languageEnglish
Title of host publicationProceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences
PublisherChemical and Biological Microsystems Society
Pages1288-1290
ISBN (Print)9780979806421
Publication statusPublished - 2009
Externally publishedYes
Event13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2009 - Jeju, Korea, Republic of
Duration: 1 Nov 20095 Nov 2009

Publication series

NameProceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences

Conference

Conference13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2009
PlaceKorea, Republic of
CityJeju
Period1/11/095/11/09

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

  • C-11
  • Methylation
  • Micromixer
  • PET
  • Radioactive synthesis

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