Correction to: Nature Communications https://doi.org/10.1038/s41467-019-10973-9, published online 12 July 2019.

The original version of this Article contained an error in Fig. 4. The x-axis labels in Fig. 4a, b were incorrectly labelled ‘Diameter (mm)’, rather than the correct ‘Diameter (µm)’. This has been corrected in both the PDF and HTML versions of the Article.