1. Université Bordeaux, CNRS, LP2IB, Chemical Imaging and Speciation, UMR 5797, 33170 Gradignan, France
2. Université Bordeaux, CNRS, INSERM, Bordeaux Imaging Center, BIC, 33000 Bordeaux, France
3. ESRF, The European Synchrotron, 38042 Grenoble, France