1. Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
2. LaPMET—Associate Laboratory, 4169-007 Porto, Portugal
3. CEB—Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
4. LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
5. IFIMUP—Materials Physics Institute, University of Porto, R. Campo Alegre, 4169-007 Porto, Portugal