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. Author manuscript; available in PMC: 2010 Oct 5.
Published in final edited form as: Nano Today. 2009 Oct 5;4(5):414–428. doi: 10.1016/j.nantod.2009.07.004

Figure 11.

Figure 11

QD-based drug carriers integrate drug delivery tracing, loading of various types of drugs (e.g. hydrophobic small-molecule drugs between the QD core and polymer coating or hydrophilic drugs on the exterior surface of the polymeric shell), and targeting functionality. Intermediate size of such carriers ensures slower renal filtration as well as RES uptake, thus increasing blood circulation time and improving delivery efficiency [41].