What is the Dynamic Response and how is it defined?

The Dynamic Response (DR) is a parameter that characterizes the switching speed of DNA nanolevers. It is automatically calculated from the raw data by the switchSENSE® software package. For every recorded data point, the software evaluates typically the upward motion...

How is the Hydrodynamic Diameter defined?

The hydrodynamic diameter (Dh) of a molecule is defined as the diameter of a perfect solid sphere that would exhibit the same hydrodynamic friction as the molecule of interest. Thus, the Dh value reflects primarily the hydrodynamic friction but is usually also a good...

What is the Lollipop Model?

The Lollipop model is a biophysical model used in DRX instruments to provide an estimated size of the protein of interest in form of the hydrodynamic diameter. The model assumes that the DNA nanolevers are a charged and rigid cylinder and the attached protein...