Correction to: Nature Communications https://doi.org/10.1038/s41467-019-10037-y, published online 12 June 2019

The original version of this Article contained an error in Fig. 6b. The representative image siCNT + FSK was inadvertently duplicated from the siCHIP image. The image for siCNT + FSK has been replaced with a correct image. This has now been corrected in both the PDF and HTML versions of the Article.