Liberation of drugs from multi-wall carbon nanotube carriers.

MWCNTs in the 'nanotube-drug' hybrids can play a role of carriers or additives (enhancers) in the more complex formulations. This work reviews qualitative and quantitative analyses of Drug Delivery Systems (DDSs) based on multi-wall carbon nanotubes (MWCNTs) and their chemically modified analogues (mainly oxidised MWCNTs). A special emphasis was placed on the chemical interactions between drug molecules and the nanotube carrier critical both in the stage of preparation/synthesis of the hybrids and liberation of the drug.