1. Division of Smart Technologies for Tumor Therapy, German Cancer Research Center (DKFZ) Site Dresden 1 , 01307 Dresden, Germany
2. Faculty of Engineering Sciences, University of Heidelberg 2 , 69120 Heidelberg, Germany
3. Institute of Physical Chemistry, University of Stuttgart 3 , 70569 Stuttgart, Germany
4. Faculty of Medicine Carl Gustav Carus, Dresden University of Technology 4 , 01307 Dresden, Germany
5. Faculty of Electrical and Computer Engineering, Dresden University of Technology 5 , 01187 Dresden, Germany