VIDEOS FOR GUILLAMAT ET AL

• Video 1: Fluorescence Micrographs of 2D Active Nematic Vortices.
• Video 2: Transition from Vortices to Chaotic 2D Active nematic.
• Video 3: Preservation of the topological charge inside active vortices.
• Video 4: Unidirectional alignment of the active nematic.
• Video 5: Visualization of active flow lanes with particle tracers.
• Video 6: The aligned active nematic direction is in situ-rotated.
• Video 7: Periodic disruption of the aligned active nematic.