1. Department of Physics, Nanoscience Center, P.O. Box 35, 40014 University of Jyväskylä, Finland.
2. Biohybrid Materials, Department of Bioproducts and Biosystems, Aalto University, 00076 Aalto, Finland.
3. HYBER Centre of Excellence, Department of Applied Physics, Aalto University, 00076 Aalto, Finland.
4. Department of Bioengineering, California Institute of Technology, Pasadena, CA 91125, USA.
5. Centre for DNA Nanotechnology, Interdisciplinary Nanoscience Center, iNANO, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark.
6. Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.