SEM Caffeine Crystals

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Caffeine crystals. Colored scanning electron micrograph (SEM) of caffeine crystals (1,3,7-trimethylxanthine).   Caffeine stimulates the central nervous system (CNS), increasing alertness and deferring fatigue. It occurs in coffee beans and tea leaves. Magnification: 150x and the image is .8mm wide.
Caffeine crystals. Colored scanning electron micrograph (SEM) of caffeine crystals (1,3,7-trimethylxanthine). Caffeine stimulates the central nervous system (CNS), increasing alertness and deferring fatigue. It occurs in coffee beans and tea leaves. Magnification: 150x and the image is .8mm wide.
Filename: K12SEM-caffeine17B.jpg
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