Scientific Reports 6: Article number: 30854; published online: 03 August 2016; updated: 08 September 2016

In this Article, David A. Weitz is incorrectly affiliated with ‘Department of Bioengineering, McGill University, Montreal Canada H3A 0C3.’ The correct affiliation is listed below:

School of Engineering and Applied Sciences, Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA.