1. Fraunhofer Institute for Silicon Technology (ISiT), Fraunhoferstrasse 1, D-25524 Itzehoe, Germany, eBiochip Systems GmbH, Fraunhoferstrasse 1, D-25524 Itzehoe, Germany, Institute for Medical Microbiology and Immunology, University of Hamburg, Martinistrasse 52, D-20246 Hamburg, Germany, PLS-Design GmbH, Eichenstrasse 42, D-20255 Hamburg, Germany, and Institute for Pharmacy, University of Greifswald, F.-L.-Jahn-Strasse 17, D-17487 Greifswald, Germany