To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S1. Crowding of actin filaments on an oil–water interface forming a 2D nematic LC. Red and blue lines in the end of the movie represent typical +1/2 and −1/2 defects. The data correspond to an average filament length of 2 μm. Interplay of structure, elasticity, and dynamics in actin-based nematic materials Rui Zhang, Nitin Kumar, Jennifer L. Ross, Margaret L. Gardel, and Juan J. de Pablo PNAS. 2017. 115:E124-E133 DOI: 10.1073/pnas.1713832115 Download Original Video Browse All Videos »