1 Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milan, Italy. Electronic address: francesco.migliavacca@polimi.it.
2 Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milan, Italy; Department of Biomechanical Engineering, Delft University of Technology, Delft, the Netherlands.
3 Department of Biomechanical Engineering, Delft University of Technology, Delft, the Netherlands; Department of Biomedical Engineering, Thoraxcenter, Erasmus Medical Center, Rotterdam, the Netherlands.