2 A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland.
3 IRCCS Fondazione Santa Lucia, Roma, Italy; Institute of Nanotechnology, CNR, Rome Unit, Roma & Institute of Nanotechnology, CNR, Lecce Unit, Lecce, Italy.
4 MARBILab, CREF - Centro Ricerche Enrico Fermi, Roma, Italy.
5 Institute of Nanotechnology- CNR, Rome Unit, Piazzale Aldo Moro 5, Rome, Italy; P.N. Lebedev Physical Institute, RAS, Leninskiy pr., 53 Moscow, Russian Federation.
6 Institute of Nanotechnology- CNR, Rome Unit, Piazzale Aldo Moro 5, Rome, Italy.
7 Institute of Nanotechnology- CNR, Rome Unit, Piazzale Aldo Moro 5, Rome, Italy; Department of Engineering and Architecture, University of Trieste, Trieste, Italy.
8 CELLS- ALBA Synchrotron Light Source, Barcelona, Spain.
9 European Synchrotron Radiation Facility (ESRF), Grenoble, France.
10 URPhyM NARILIS, Université de Namur, Rue de Bruxelles, Namur, Belgium.
11 IRCCS Fondazione Santa Lucia, Roma, Italy; Institute of Nanotechnology- CNR, Rome Unit, Piazzale Aldo Moro 5, Rome, Italy. Electronic address: michela.fratini@gmail.com.