To do this, the researchers adapted a device known as an atomic-force microscope.
ECONOMIST: How (and why) to find a needle in a haystack | The
Dr Hinterdorfer and his team tested this idea by applying a coating of an antigen (an enzyme called lysozyme) to a mica sheet, and suspending an appropriate antibody from the tip of an atomic-force microscope with a flexible polymer tether.
ECONOMIST: Microscopy
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