Fig. 2
From: Nanoparticles with curcumin and piperine modulate steroid biosynthesis in prostate cancer

(a) Diameter and polydispersity index (PDI) of the prepared nanoparticles, including curcumin nanoparticles (CN), curcumin–piperine nanoparticles (CPN), and empty nanoparticles (Polymer) used as control. (b) Atomic force microscopy (AFM) height images of air-dried CPN with different scan sizes. Left panel; scan size: 2 µm × 2 µm. X–Y scalebar: 400 nm. Right panel; scan size: 300 nm × 300 nm. X–Y scalebar: 60 nm.