- Annie Cavanagh and David McCarthy
- Digital Images
Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
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Credit: Caffeine crystals. Annie Cavanagh and David McCarthy. Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
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About this work
False-coloured scanning electron micrograph of caffeine crystals. Caffeine is a bitter, crystalline xanthine alkaloid that acts as a stimulant drug. Beverages containing caffeine, such as coffee, tea, soft drinks, and energy drinks, enjoy great popularity, and 90% of adults consume caffeine daily. Wellcome Image Awards 2012.