Jan Lipfert is a professor of experimental biophysics and Vice Dean in the physics department at Ludwig Maximilian University of Munich, Germany. He is interested in the structure, function, and interactions of biological macromolecules and their modulation by external forces and torques. To address these questions, his lab uses and develops single-molecule techniques—magnetic tweezers and atomic force microscopy in particular—and x-ray scattering methods. He obtained his Ph.D. from Stanford University in 2008, where he combined computer simulations and small-angle x-ray scattering. During his postdoc at Delft University of Technology, Netherlands, he developed novel magnetic tweezers instruments for single-molecule studies of torque and twist.