The tweezer structure consisting of two rigid DNA bars connected by a joint. Experimental Biophysics , Technical University of Munich. (Image: Chris Hohmann, NIM/ Dietz Lab, TUM) Image is illustrating the press release: "In the molecular bench vise"; 24.02.2017. https://www.tum.de/nc/en/about-tum/news/press-releases/detail/article/33747/. May be freely used by reporters, with proper attribution