Figure 4

(A) Sketch shows encapsulation of DDA-GSH-AuNCs into PLGA nanoparticles using the nanoprecipitation method. (B) Florescence spectra of PLGA nanoparticles encapsulating DDA-GSH-AuNCs (Insert: digital photograph of pellets of PLGA nanoparticles encapsulating DDA-GSH-AuNCs under daylight (left) or long-wavelength UV lamp irradiation (365 nm) (right)). (C) Leaching of encapsulated DDA-GSH-AuNCs from PLGA nanocarriers as function of time. Total leaching was calculated as percent to initial load of DDA-GSH-AuNCs in to PLGA nanoparticles. Values represent average and standard deviation of three independent experiments.