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On target

These nanocapsules are directed to the right spot by chemical receptors on their surface that recognise damaged cells. They release their drugs when they come across a specific trigger molecule.

The capsules could be made from nano-porous material. Nanopores are holes that act as tiny turnstiles. By making the nanopores only slightly larger than the drug molecules, you can make sure only one molecule escapes at a time. This means the drug is released at a constant rate.



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The tiny holes in this nanoporous material could be used to control the release of drugs in the body.
The tiny holes in this nanoporous material could be used to control the release of drugs in the body.
Image: pSiMedica Ltd

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