Figure 2
From: Topical Curcumin Nanocarriers are Neuroprotective in Eye Disease

Characterization of curcumin loaded nanoparticles and stability assessment over time. (A) Transmission Electron Micrograph of curcumin loaded nanoparticles (CNs) negatively stained with 1% Uranyl acetate. Scale bar = 50 nm. Dynamic light scattering revealed a homogeneous particle population which did not significantly change on storage at (B) 25 °C or (C) on lyophilization and storage at 25 °C and resuspension after 9 weeks. (D) Photograph of 1 mL lyophilized CN in 10 mM HEPES, 50 mg/mL trehalose buffer showing good cake structure. Stability studies illustrating the change in encapsulation efficiency over time when CN were stored at (E) 25 °C (solution) versus lyophilized and rehydrated. The average particle size (F) and dispersity index (G) was recorded in each case. Mean ± 95% CI.