Application III

Sample: DNA on mica in buffer solution
Scan Range: 600 nm × 600 nm
Data Type: topography / Data Range: 2.3 nm


Being able to minimize the interactions forces during scanning is of great relevance for imaging delicate biological samples in enviroments such as water of buffer solution. The cross sections of the topographic data reveal that the measured DNA height is significantly larger when Q-Control is activated. The difference in the observed DNA height indicates that the imaging forces were reduced by employing Q-Control.