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Confocal microscopy images of mouse cochleae following treatment with GNPs (A) and the untreated control (B). GNPs were surgically applied into the mouse cochlea. After 24 hours, the cochleae were fixed and stained with a prestin-488 antibody. The results indicate that no significant difference in the OHC morphology was observed between cochleae that had been exposed to GNPs and the control cochleae. This strongly suggests that GNPs do not cause significant morphological changes.
