1 Department of Drug Delivery, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research, Saarland University, Germany. Electronic address: brigitta.loretz@helmholtz-hzi.de.
2 Department of Drug Delivery, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research, Saarland University, Germany.
3 Department of Drug Delivery, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research, Saarland University, Germany; Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Germany.
4 Department of Pharmacy, Biopharmaceutics and Pharmaceutical Technology, Saarland University, Germany.
5 Department of Drug Delivery, Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research, Saarland University, Germany; Department of Pharmacy, Biopharmaceutics and Pharmaceutical Technology, Saarland University, Germany; PharmBioTec GmbH, Saarbrücken, Germany.