1. Life and Medical Sciences (LIMES) University of Bonn Gerhard-Domagk-Str.1 53121 Bonn Germany
2. Max Planck Fellow Chemical Biology Center of Advanced European Studies and Research (caesar) Ludwig-Erhard-Allee 2 53175 Bonn Germany
3. Center of Aptamer Research & Development University of Bonn Gerhard-Domagk-Str. 1 53121 Bonn Germany