1. Nanomaterials for Bioimaging Group, Departamento de Física de Materiales, & Instituto de materiales Nicolás Cabrera & Institute for Advanced Research in Chemical Sciences,, Universidad Autónoma de Madrid, Madrid 28049, Spain
2. Universidad de Granada, Nanoparticles Trapping Laboratory, Research Unit Modeling Nature (MNat) and Department of Applied Physics, 18071 Granada, Spain
3. Universidad de Málaga, Department of Applied Physics II, 29071 Málaga, Spain
4. Biomedical Magnetic Resonance Laboratory-BMRL, Andalusian Public Foundation Progress and Health-FPS, 41092 Sevilla, Spain
5. Biomedical Research Institute of Málaga and Nanomedicine Platform (IBIMA-BIONAND Platform), University of Málaga, C/Severo Ochoa 35, 29590 Málaga, Spain
6. Biomedical Research Networking Center in Bioengineering, Biomaterials & Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
7. Department of Physical Chemistry, Universidad Complutense de Madrid, 28040 Madrid, Spain