1. Institute of Chemistry, CNRS UMR 7177 and University of Strasbourg, 4 rue Blaise Pascal, 67081 Strasbourg, France
2. Department of Biophysics and Nuclear Medicine, Strasbourg University Hospital, 67098 Strasbourg, France
3. Bruker BioSpin, 67166 Wissembourg, France
4. Institute of Biological Physics, Faculty of Medicine, LINC/CNRS UMR 7237 and University of Strasbourg, 67085 Strasbourg, France