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Scanning electron microscopy images of corneocytes on day 3 after application of pet. (a), methylchloroisothiazolinone (MCI)/methylisothiazolinone (MI) (b) and sodium lauryl sulfate (SLS) at ×1350 magnification. Note a loose lateral association between the cells for the MCI/MI and the SLS test sites. Furthermore, circular nanosize objects can be distinguished on the corneocyte surface of the SLS test site.
