Abstract
Nanomedicine frequently employs single particles ranging from very simple1 to highly multifunctional.2 However, the diversity of barriers to effective transport can limit the global optimization of delivery for such systems. Multistage particles present an effective means to overcome such issues, allowing scientists to better segment the delivery mechanism into discrete steps by combining multiple formulations for sequential utility in vivo. A recent article in Nature Biotechnology highlights such a system,3 delivering nanoformulated doxorubicin (Dox) within larger disc-shaped, mesoporous silica particles (MSPs).
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