title: Microfluidics for positron emission tomography probe development.
abstract: Owing to increased needs for positron emission tomography (PET), high demands for a wide variety of radiolabeled compounds will have to be met by exploiting novel radiochemistry and engineering technologies to improve the production and development of PET probes. The application of microfluidic reactors to perform radiosyntheses is currently attracting a great deal of interest because of their potential to deliver many advantages over conventional labeling systems. Microfluidics-based radiochemistry can lead to the use of smaller quantities of precursors, accelerated reaction rates, and easier purification processes with greater yield and higher specific activity of desired probes. Several proof-of-principle examples along with the basics of device architecture and operation and the potential limitations of each design are discussed. Along with the concept of radioisotope distribution from centralized cyclotron facilities to individual imaging centers and laboratories ("decentralized model"), an easy-to-use, stand-alone, flexible, fully automated, radiochemical microfluidic platform can provide simpler and more cost-effective procedures for molecular imaging using PET.
authors.affiliation: Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.
authors.forename: Ming-Wei
authors.initials: MW
authors.lastname: Wang
authors.forename: Wei-Yu
authors.initials: WY
authors.lastname: Lin
authors.forename: Kan
authors.initials: K
authors.lastname: Liu
authors.forename: Michael
authors.initials: M
authors.lastname: Masterman-Smith
authors.forename: Clifton
authors.initials: C
authors.lastname: Kwang-Fu Shen
mesh_terms: D000818:Animals; D019788:Fluorodeoxyglucose F18 / Q000737:chemistry; D006801:Humans; D046210:Microfluidic Analytical Techniques / Q000295:instrumentation* / Q000379:methods*; D049268:Positron-Emission Tomography / Q000295:instrumentation* / Q000379:methods*; D011868:Radioisotopes / Q000737:chemistry*
chemical_list: D011868:Radioisotopes; D019788:Fluorodeoxyglucose F18