Externally Triggered Microcapsules Release Drugs In Situ

In an advanced method of administering drugs to target sites in human bodies, the drugs in liquid form are contained in microcapsules that are injected, and then, by exposing the target sites to externally generated electromagnetic fields, the microcapsules are lysed to release the drugs. Such externally triggered microcapsules are intended primarily for use in combined-modality therapies of cancer. In a given application, the external electromagnetic field can be applied to cause the release of the encapsulated drug(s) at a prescribed time or when the microcapsules are confirmed to be located in a specific tissue.