DMDG Open 2024 -- Microautoradiography (mARG), a complimentary service to whole-body autoradiography which allows the visualization of radioactivity to the cellular level, has been a service offering at Labcorp for over 30 years. There have been several changes in the supply of the nuclear emulsion, which is critical for the technique. Supply of commercial material was reasonable, if intermittent, as it was a supply-and-demand product. Suppliers ceased production of nuclear emulsion and in April 2023, the final manufacturer known to produce nuclear emulsion ceased production and dismantled their equipment. Our options were to find another supplier, stop offering the service or use an alternative product. As nothing was available commercially, could nuclear emulsion be prepared in-house and be a suitable alternative?

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