843687.fig.001a
(a)
843687.fig.001b
(b)
843687.fig.001c
(c)
843687.fig.001d
(d)
Figure 1: Different types of nanoparticles. (a): liposome showing a phospholipid bilayer surrounding an aqueous interior, (b): nanocrystal, (c): solid lipid nanoparticle [12], and (d): nanocapsule with different drug-loading modalities [13].