Presumably, its chemistry was not similar enough to their own biochemicals for them to notice.

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The fat cells release biochemicals that lead to inflammation, which could lead to heart attacks, strokes and joint and muscle pain.

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Bertarelli, the heir to a Swiss biochemicals fortune, accuses Ellison of using high-priced lawyers to pursue a challenge he can't seem to win on the water.

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When they mixed their artificial biochemicals (including the unnatural amino acid) with a bacterial extract that contained ribosomes and all the appropriate enzymes, Dr Hirao and Dr Yokoyama found that the unnatural additions were treated just like their natural analogues.

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