Author Correction: The softness of tumour-cell-derived microparticles regulates their drug-delivery efficiency

Correction to Nature Biomedical Engineering https://doi.org/10.1038/s41551-019-0405-4, published online 20 May 2019.

In the version of this Article originally published, the Supplementary Information file contained two errors. In Supplementary Fig. 17d, the IC₅₀ values of free DOX for the H22 cells were mistakenly identical to those for the B16-F10 cells. The correct values have now been provided and the associated P values have also been corrected. Additionally, in Supplementary Fig. 23a, the day-6 representative spheroid for the top row (peripheral region) was mistakenly a duplicate of the day-5 representative spheroid for the bottom row (central region). The correct spheroid image has now been provided, and the updated Supplementary Information file is available online.