1. International Iberian Nanotechnology Laboratory (INL), Avenida Mestre José Veiga, Braga, 4715-330, Portugal
2. Centre of Molecular & Environmental Biology (CBMA), University of Minho, Braga, 4710-057, Portugal
3. Centro de Física das Universidades do Minho e do Porto (CF-UM-UP), University of Minho, Braga, 4710-057, Portugal
4. Institute of Science & Innovation for Biosustainability (IB-S), University of Minho, Braga, 4710-057, Portugal