1 Department of Nanomedicine & Drug Targeting, Groningen Research Institute of Pharmacy (GRIP), University of Groningen, Groningen, The Netherlands.
2 Department of Pharmaceutical Analysis, Groningen Research Institute of Pharmacy (GRIP), University of Groningen, Groningen, The Netherlands.
3 European Research Institute for the Biology of Ageing, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
4 Department of Nanomedicine & Drug Targeting, Groningen Research Institute of Pharmacy (GRIP), University of Groningen, Groningen, The Netherlands. a.salvati@rug.nl.