1. Department of Biochemistry and Structural Biology, Lund University, Lund, Sweden,
2. NanoLund, Lund University, Lund, Sweden,
3. Division of Solid State Physics, Lund University, Lund, Sweden,
4. Department of Biology/Aquatic Ecology, Lund University, Lund, Sweden, and
5. Neuronano Research Center, Lund University, Lund, Sweden