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Caffeine crystals

Annie Cavanagh

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Free to use with attribution for non-commercial purposes CC BY-NCCredit: Annie Cavanagh and David McCarthy
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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.

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You can use this work for any purpose, as long as it is not primarily intended for or directed to commercial advantage or monetary compensation. You should also provide attribution to the original work, source and licence.

Creative Commons Attribution Non-Commercial (CC BY-NC 4.0) terms and conditions https://creativecommons.org/licenses/by-nc/4.0

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Caffeine crystals. Credit: Annie Cavanagh and David McCarthy. CC BY-NC


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