[1] Aalto Univ, Sch Sci & Technol, Dept Biotechnol & Chem Technol, FI-00076 Aalto, Finland
[2] AM Prokhorov Gen Phys Inst RAS, Moscow 119991, Russia
[3] Aalto Univ, Sch Sci & Technol, Dept Appl Phys, NanoMat Grp, FI-00076 Aalto, Finland
[4] Aalto Univ, Sch Sci & Technol, Ctr New Mat, FI-00076 Aalto, Finland
[5] VTT Biotechnol, FI-02044 Espoo, Finland