1. Biosystems and Biomaterials Division, Material Measurement Laboratory, National Institute of Standards and Technology (NIST), Gaithersburg, Maryland 20899, United States
2. Particles-Biology Interactions Laboratory, Empa, Swiss Federal Laboratories for Material Science and Technology, CH-9014 St. Gallen, Switzerland
3. NanoCASE GmbH, St. Gallerstr. 58, 9032 Engelburg, Switzerland
4. Institute for Infection Prevention and Hospital Epidemiology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, D-79106 Freiburg, Germany
5. Kurdistan Institution for Strategic Studies and Scientific Research (KISSR), Qirga, Sulaimani, Iraq
6. European Commission, Joint Research Centre (JRC), 21027 Ispra, Italy
7. Vereala GmbH, Eyhof 34, 8047 Zürich, Switzerland