Contact: Michael Mullaney
Rensselaer Polytechnic Institute
Caption: Transmission electron microscope images show carbon nanotubes conjugated with anthrax toxin before (a, b) and after (c, d) exposure to ultraviolet light. This light caused the adsorbed toxin to deactivate and fall off the nanotube, which is why the structures in pictures c and d are smaller in diameter than those in pictures a and b.
Credit: Rensselaer/Ravi Kane
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