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Development of radiodetection systems towards miniaturised quality control of PET and SPECT radiopharmaceuticals

Taggart, MP (2016) Development of radiodetection systems towards miniaturised quality control of PET and SPECT radiopharmaceuticals Lab On a Chip: microfluidic and nanotechnologies for chemistry, biology, and bioengineering.

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Abstract

The ability to detect radiation in microfluidic devices is important for the on-chip analysis of radiopharmaceuticals, but previously reported systems have largely suffered from various limitations including cost, complexity of fabrication, and insufficient sensitivity and/or speed. Here, we present the use of sensitive, low cost, small-sized, commercially available silicon photomultipliers (SiPMs) for the detection of radioactivity inside microfluidic channels fabricated from a range of conventional microfluidic chip substrates. We demonstrate the effects of chip material and thickness on the detection of the positronemitting isotope, [18F]fluoride, and find that, while the SiPMs are light sensors, they are able to detect radiation even through opaque chip materials via direct positron and gamma (γ) ray interaction. Finally, we employed the SiPM platform for analysis of the PET (positron emission tomography) radiotracers 2-[18F]fluoro-2-deoxy-D-glucose ([18F]FDG) and [68Ga]gallium-citrate, and highlight the ability to detect the γ ray emitting SPECT (single photon emission computed tomography) radiotracer, [99mTc] pertechnetate.

Item Type: Article
Subjects : Chemistry
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
AuthorsEmailORCID
Taggart, MPUNSPECIFIEDUNSPECIFIED
Date : 5 April 2016
Identification Number : https://doi.org/10.1039/C6LC00099A
Copyright Disclaimer : © The Royal Society of Chemistry 2016
Depositing User : Symplectic Elements
Date Deposited : 04 Nov 2016 15:01
Last Modified : 04 Nov 2016 15:01
URI: http://epubs.surrey.ac.uk/id/eprint/812326

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