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. Author manuscript; available in PMC: 2009 Dec 15.
Published in final edited form as: Nat Mater. 2009 Jan;8(1):15–23. doi: 10.1038/nmat2344

Figure 2. Size-dependent processes of particle transport in the human body.

Figure 2

Particles can pass through biological barriers by a number of different processes. These include passive (diffusive) and active processes ranging from extravasation to transdermal uptake. Most of these processes affect distribution and clearance of micro- and nanoparticles in the human body and they strongly depend on particle size.