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. Author manuscript; available in PMC: 2013 Nov 1.
Published in final edited form as: Adv Drug Deliv Rev. 2012 Mar 6;64(14):1579–1589. doi: 10.1016/j.addr.2012.02.012

Figure 1. Important attributes of a drug delivery system.

Figure 1

Important attributes include precise size and shape, wall thickness, porosity, patterned targeting ligands and on-board optoelectronic elements (such as a split-ring resonator depicted in the illustration; illustration by Kate Laflin, Gracias Laboratory, JHU).