1. Molecular Neurooncology Laboratory, Department of Neurosurgery, Martin-luther-University, D-06097, Halle, Germany
2. Institute of Bioengineering, Department of Engineering Sciences, Martin-Luther-University, D-06099, Halle, Germany
3. Inotech Encapsulation AG, Kirchstrasse 1, CH-5605, Dottikon, Switzerland
4. Department of Neurological Science, University of Liverpool, Liverpool, 9L 7LJ, UK