About the Authors

Akvile Haeckel

Affiliation Department of Radiology, Charité - Universitätsmedizin Berlin, Berlin, Germany

Franziska Appler

Affiliation nanoPET Pharma, Berlin, Germany

Angela Ariza de Schellenberger

Affiliation Department of Radiology, Charité - Universitätsmedizin Berlin, Berlin, Germany

Eyk Schellenberger

eyk.schellenberger@charite.de

Affiliation Department of Radiology, Charité - Universitätsmedizin Berlin, Berlin, Germany

Competing Interests

Apart from the fact that Volker Schellenberger, the inventor of the XTEN technology and the CEO of Amunix, is ES’s cousin, the authors have no financial benefit or share of profits of Amunix. na-noPET Pharma is the current employer of FA. FA contributed to this manuscript during her PhD program when she was employed in our group at the Charité - University Medicine Berlin. nano-PET Pharma did not support this project, was not involved, and has no rights to any of the results. This does not alter the authors’ adherence to PLOS ONE policies on sharing data and materials. The German Research Foundation DFG provided financial for the salaries of FA and AH. DFG did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. This does not alter the authors’ adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: ES AH. Performed the experiments: AH FA AA. Analyzed the data: AH FA AA ES. Wrote the paper: ES AH.