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Aspirin crystals
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B0006253 Credit Annie Cavanagh, Wellcome Images
Aspirin crystals
Aspirin crystals. Aspirin was originally extracted from willow bark but is actually produced in all plants as a defence mechanism in response to damage or attack. Much higher levels are therefore found in less than perfect fruit and vegetables. Aspirin is used to treat pain, reduce fever and to prevent heart disease and cancer. Some people think it should be reclassified as a vitamin.
Scanning electron micrograph 2006
Collection: Wellcome Images

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