FIGURE 1.

Illustration of modular designed drug delivery platform. The modular drug‐delivery system (MDS) is consisted of five different modules, including assembly module (KLVFFAE, yellow), targeting and tailoring module (purple), drug conjugated module (blue), extending modules (green and red). First, the MDS molecules were specific binding to its target through targeting module and activate the caspase3/7, then the activated caspase 3/7 tailored the MDS molecules and induced in situ self‐assembly into drug‐rich nanostructures (drug assemblies)