Correction to: A Noninvasive Gut-to-Brain Oral Drug Delivery System for Treating Brain Tumors (Advanced Materials, (2021), 33, 34, (2100701), 10.1002/adma.202100701)

Adv. Mater. 2021, 33, 2100701 DOI: 10.1002/adma.202100701 Figure S3b of the Supporting Information accompanying the published article is hereby corrected. Three of the component images in the published figure are incorrect (top row (untreated), image for 8 h; bottom row (treated), images for 0 h and 6 h). Due to a technical problem with the IVIS machine, the tissue samples for the untreated group at 6 h were firstly taken under a wavelength that is associated with auto florescence; after the machine was fixed, the IVIS image for this group was repeatedly taken a couple of times. The wrong images were selected and inserted into the figure when it was prepared. The corrected figure is shown below. S3b Figure (Figure presented.) b) Ex vivo IVIS images of accumulation of f-prodrug NPs and their corresponding total radiant efficiencies in isolated major organs that were harvested from test mice. I: brain tumor; II: heart; III: lung; IV: liver; V: spleen; VI: pancreas; VII: kidneys.