Correction to: Nature Communications https://doi.org/10.1038/s41467-020-17945-4, published online 20 August 2020.

The original version of this Article contained an error in Fig. 4a, in which the value for the ‘partition coefficient’ for phenyltriethylammonium was incorrectly given as 0. The correct value for the ‘partition coefficient’ is 2.9.

This has been corrected in both the PDF and HTML versions of the Article.