1. Department of Chemistry, Division of Surface and Corrosion Science, KTH Royal Institute of Technology, Drottning Kristinas väg 51, SE-100 44 Stockholm, Sweden
2. AIMES—Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet, KTH Royal Institute of Technology, SE-171 77 Stockholm, Sweden
3. Department of Neuroscience, Karolinska Institutet, SE-171 77 Stockholm, Sweden
4. Department of Materials Science and Engineering, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden