JEAN-CLAUDE REVY, ISM / SCIENCE PHOTO LIBRARY JEAN-CLAUDE REVY, ISM / SCIENCE PHOTO LIBRARY
Coloured Scanning Electron Micrograph (SEM) of a single keratinocyte skin cell. These epithelial cells produce keratin in the skin's outermost layers and as they are used to seed new skin growth, they may be cultured for skin grafts or for testing cosmetics and drugs. Magnification: x280 when printed at 10 centimetres wide.
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