Kasas, S.Alonso, L.Jacquet, P.Adamcik, J.Haeberli, C.Dietler, G.2010-03-222010-03-222010-03-22201010.1063/1.3285262https://infoscience.epfl.ch/handle/20.500.14299/48339WOS:000274179800030We present a programmable microcontroller-driven injection system for the exchange of imaging medium during atomic force microscopy. Using this low-noise system, high-resolution imaging can be performed during this process of injection without disturbance. This latter circumstance was exemplified by the online imaging of conformational changes in DNA molecules during the injection of anticancer drug into the fluid chamber.atomic force microscopybiological fluid dynamicscancerDNAdrugsmolecular biophysicsprogrammable controllerstext::journal::journal article::research article